|Publication number||US3886941 A|
|Publication date||3 Jun 1975|
|Filing date||18 Jun 1974|
|Priority date||18 Jun 1974|
|Also published as||CA1063301A, CA1063301A1, DE2525988A1|
|Publication number||US 3886941 A, US 3886941A, US-A-3886941, US3886941 A, US3886941A|
|Inventors||John J Duane, Charles B Lindner|
|Original Assignee||Union Carbide Corp|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (6), Referenced by (217), Classifications (21), Legal Events (7)|
|External Links: USPTO, USPTO Assignment, Espacenet|
United States Patent 1 Duane et a1.
[ DIAPER INSERT  Inventors: John J. Duane, White Plains, N.Y.;
Charles B. Lindner, Darien, Conn.
 Assignee: Union Carbide Corporation, New
 Filed: June 18, 1974  Appl. No.: 480,522
 US. Cl 128/287; 128/284; 128/290 R; 128/296; 128/156  Int. Cl A41b 13/02  Field of Search 128/284, 287, 290 R, 290 P, 128/290 H, 156, 296
 References Cited UNITED STATES PATENTS 2,549,982 4/1951 McKhann et al. 128/290 R 3,292,619 12/1966 Egler 128/156 June 3, 1975 3,399,672 9/1968 Crowc, Jr et al. 128/156 3,563,242 2/1971 Hedstroy 128/287 3,814,101 6/1974 Kozak 128/287 3,815,602 6/1974 Johns 128/287 Primary Examiner-Aldrich F. Medbery Attorney, Agent, or FirmC. J. Vicari 5 7 ABSTRACT A disposable diaper insert for a disposable or nondisposable diaper comprised of, in combination, at least one absorbent pad disposed between a liquid impermeable topsheet and a liquid impermeable bottom sheet, each of said sheets being formed from a hydrophobic material such as a thermoplastic film and each of said films being characterized by a plurality of valvular apertures or openings therein and a system of dimples disposed across the surface thereof.
11 Claims, 7 Drawing Figures PATENTED JU! 3 1975 SHEET 23 5 iv W DIAPER INSERT The present invention relates to diapers and more particularly to disposable inserts for disposable or nondisposable diapers which are adapted to provide improved absorbency, and which can be used once and thrown away. In a more specific aspect, the disposable diaper inserts of the present invention are utilized in conjunction with disposable or nondisposable diapers whereby only the disposable diaper insert is discarded after soilage, thereby permitting future use of the diaper.
Disposable diapers have been known in the art for a number of years, and are now gaining widespread acceptance by consumers, both in private homes and in hospitals and institutions. Their present success is achieved in part by the elimination of the necessity of storing, washing and folding the disposable diaper as is the case with the conventional cotton woven diapers.
To compete with the conventional product, the cost of the disposable diaper must be relatively low and it should be similar to a cloth diaper with regard to absorbency, softness, bulk and conformability.
In both types of diapers, premature removal from the infant adds considerably to the consumers problem as reflected either by the increased labor effort required to clean conventional diapers or by the expense of replacing the disposable diaper. This premature removal can be motivated by a variety of factors but is mainly attributable to the effect of partial saturation of the diaper. Thus when an infant partially wets a diaper, the mother or the consumer is prone to immediatelyreplace the diaper due to her associating wetness with diaper rash, odor, discomfort and other such characteristics.
Attempts to ameliorate the problems by utilizing diaper aids, e.g., disposable absorbent diaper inserts, or booster pads, have not been entirely satisfactory for a variety of reasons. Merely as illustrative, the conventional diaper aids suffer from one or more of the following disadvantages:
a. They do not possess sufficient absorptive capacity;
b. They are uncomfortable to the user; and
c. They suffer from poor liquid retention properties after absorption.
It will of course be understood that the terms diaper.
aids, booster pads and diaper inserts are susceptible to various interpretations and meanings. As used herein, however, it is intended that these terms designate absorbent material or products to be used in conjunction with conventional diapers (as contrasted to their being part of the structure of the diaper) in order to provide additional advantages such as improved absorbency and reduced leakage from the diaper.
It is therefore an object of the present invention to provide an insert for diapers which can be utilized in conjunction with a conventional diaper so as to provide added absorbency and which can be easily removed from the diaper, after soilage, and discarded permitting future use of the diaper.
Another object of the present invention is to provide a diaper insert for disposable diapers which enables the diaper to be utilized for relatively longer periods of time thereby providing increased economical operation.
Another object is to provide a diaper insert for diapers which have a high degree of liquid retention.
A still further object is to provide a diaper insert for disposable diapers having a high degree of initial absorption or wicking properties.
These and other objects will become apparent from the description of the invention taken in conjunction with the accompanying drawings in which:
FIG. 1 is a perspective view of the diaper insert made in accordance with the present invention with some portions opened up to reveal other portions and certain details of construction.
FIG. 2 is a section taken along the line 2-2 of FIG. 1.
FIG. 3 is an enlarged fragmentary cross-section of FIG. 2 showing a section of the diaper insert during unsaturation.
FIG. 4 is a view similar to FIG. 3 except that the diaper insert is saturated with liquid.
FIG. 5 is a plan view, partially cut away of a diaper insert according to a further, but less preferred embodiment of the present invention.
FIG. 6 is a plan view of a diaper insert wherein the absorbent material has a contoured configuration.
FIG. 7 is a plan view of a conventional diaper showing the diaper insert in position on the diaper.
In its broad aspect, the disposable diaper insert of the present invention is comprised of, in combination, at least one absorbent pad disposed between a liquid impermeable topsheet and a liquid impermeable bottom sheet, each of said sheets being formed from a hydrophobic material such as a thermoplastic film and each of said films being characterized by a plurality of valvular apertures or openings therein and a system of dimples disposed across the surface thereof.
Referring in detail to FIG. 1 there is shown a disposable diaper insert, generally designated 10, comprising a rectangular absorbent pad 12 substantially centrally located and sandwiched between a thin, flexible bottom sheet 14 of liquid impermeable material, and a thin flexible topsheet 16 also of a normally liquid impermeable material. Bottom sheet 14 and topsheet 16 have a plurality of slits 18 and a system of dimples 22 therein which slits and dimples will be described in greater detail hereinafter.
Bottom sheet 14 and topsheet 16 are of approximately equal size and are of a length and width slightly greater than the corresponding dimensions of absorbent'pad 12. The edges of bottom sheet 14 and topsheet 16 are sealed to each other around the entire periphery of the insert 10 and just outside the outermost edges of absorbent pad 12. The sealing can be accomplished by any convenient means, such as the use of an adhesive, but heat sealing is preferred and is indicated by heat seal 20 around the periphery of the insert.
The absorbent pad 12 can be a plurality of layers of absorbent tissue paper or wadding stacked to the desired thickness. The wadding layers need not be adhered to each other but, since it has been common practice to adhesively, mechanically, or otherwise secure the layers to each other to maintain the relative position of the layers and the shape of the absorbent pad, such can also be done in the insert of the present invention. The wadding can be stacked to form a pad of any desired thickness and hence absorbency can be controlled for any particular use.
Absorbent materials other than tissue and wadding will of course be useful in the insert construction of the present invention. For example, absorbent non-woven pads can be fabricated to any desired thickness and substituted for the absorbent pads described above. One such absorbent pad which has been used extensively in disposable diapers is a wood pulp product commonly known as wood fluff and is prepared in the same manner as a non-woven fabric. Thus such type absorbent pad is also useful as the absorbent pads of the inserts of the present invention.
The only criteria for utility in the present invention are that the material be absorbent, be capable of being fabricated in the form of a pad, be compatible with the waste products with which it will come in contact and be non-irritating to the skin.
Various natural and synthetic polymeric materials are themselves absorbent or can be made absorbent and will therefore be useful as, or in combination with, the absorbent pad of the present invention. One group of polymers which are particularly preferred are insoluble hydrophilic homopolymers and copolymers which form a gel upon absorption of water. These materials offer the obvious advantage of holding tenaciously to liquid and preventing the release of liquid from the absorbent article and leaking or wetting skin or clothing with which the absorbent article is in contact.
In practice, the materials which have been found particularly useful are insoluble hydrophilic polymers prepared from the following starting materials: poly(alkylene oxides), e.g. poly(ethylene oxide), polyvinyl alcohol, polyvinylmethyl ether, copolymers of maleic anhydride and ethylene, copolymers of maleic anahydride and vinylmethyl ether, polyelectrolytes, etc.
Insoluble hydrophilic polymers, sometimes referred to as hydrogels, are especially useful in the present invention because they possess the ability to consume very large amounts of water in the order of 25 to 100 times their dry weight.
The term insoluble or insolubilization as employed in relation to these polymers is intended to define the formation of a gel which does not flow and does not expel water under the pressures encountered in the use of products described above.
The insolubilization can be effected by a wide variety of methods and includes, but is not limited to, ionizing and nonionizing radiation and chemical cross-linking through covalent and ionic bonding.
A particularly preferred hydrogen for use in the articles of this invention is comprised of at least one hydrophilic polymer of the formula wherein R R are selected from the group consisting of hydrogen, methyl, phenyl and vinyl radicals.
These hydrophilic polymers may include carbon-tocarbon cross-linking between straight chain carbon atoms and the carbon atoms of branch chain methyl groups and in addition a very minor and insignificant number of bonds may include two oxygen atoms linking the carbon atoms.
The polymeric gel compounds may contain crosslinking bonds present as intermolecular bonds (e.g. between two different molecules) and intramolecular bonds (eg between carbon atoms of the same molecule), and combinations of intra and intermolecular cross-linking bonds.
The hydrogels can be used in the diaper constructions of the present invention either in the form of thin transparent sheets disposed between or in place of wadding layers of the absorbent pad or can be embedded in the fibers of the absorbent pad as a powder or in shredded form. The manner in which the materials are incorporated into the pad is not critical since it is merely necessary to have the polymers come in contact with the liquid which penetrates the topsheet of the absorbent article.
The materials used in the fabrication of the topsheet and bottom sheet of the diaper insert of the present invention are also not limited to any particular chemical composition since it is their physical properties rather than their chemical properties which are important in the articles of the invention. These materials should, of course, be thin, flexible, self-supporting, and substantially water impermeable sheets or films. Preferably they are thermoplastic films which are capable of being heat sealed to each other.
The bottom sheet and topsheet can be an olefinic or vinyl film. Merely as illustrative, polyethylene of a thickness of from about 0.4 to about 1.5 mils can be employed. This type of film has previously been used extensively in disposable diapers and commonly has had an embossed design in its surface to simulate the appearance and hand of cloth. These manufacturing techniques will also find use in the diaper inserts of the present invention.
Any film which is useful as a bottom sheet will also be useful as a topsheet for the disposable absorbent insert of the invention. It is preferable, however, to use a film for the bottom sheet and topsheet which resembles cloth more closely in feel and appearance. One film which has been found particularly useful is ethylene-ethyl acrylate film. This copolymer is cloth-like, softer and stronger after slitting than polyethylene film. The film should have a thickness of from about 0.4 to about 2.0 mils with about 1.0 to 15 mils being preferred.
As described above, the bottom sheet and topsheet are made from a substantially liquid impermeable material and must be provided with valvular openings to be effective as the diaper insert of the present invention.
The term valvular as used throughout the specification and in the claims is intended to refer to apertures in the bottom sheet and topsheet which are capable of opening to permit passage of liquid under certain circumstances and reclosing to retard passage of liquid under certain other circumstances. When open, the valvular openings should have the ability to pass at least 20 milliliters of liquid within seconds when an area of about 20 square inches is wetted. These openings may be of two basic types, substantially straight slits and punctures.
The slits useful in the present invention must be substantially straight since, if they are curved, V-shaped or of any other configuration, they will form flaps in the surface of the film which are too easily opened and tend to remain open. Such slits, while permitting sufficient passage of liquid in the direction of the absorbent pad, do not act to substantially reduce backflow of liquid, which is the primary object of the present invention. This disadvantage is also present if holes are formed in the film by removing pieces of film material as opposed to puncturing the film without removal of film material. The film is thereby left open to the uncontrolled passage of liquid in both directions.
FIG. 1 shows a preferred arrangement of slits. The slits 18 are arranged in longitudinal rows in a manner such that each row constitutes a longitudinal array of substantially parallel straight slits each angularly disposed with respect to the longitudinal axis of the row. Adjacent rows are similarly disposed except that the slits are arranged in a manner such that the end points of each slit lie in a line substantiallybetween the end points of corresponding slits in the adjacent alternate rows. The "slits should each be from about 0.030 to about 0.25 inch in length. Preferably there are from about 30 to about 150 slits per square inch, each of such slits being from about 0.07 to about 0.2 inch in length. The most preferred film contains about 81 slits per square inch, each about 0.1 inch in length.
The slits can be formed according to the methods described in US. Pat. No. 3,762,255 issued October 2, 1973 and entitled Method and Apparatus for Piercing Thin Sheet Material. Briefly, there is disclosed therein a method and apparatus for piercing thin sheet material, such as plastic film, wherein the sheet material is passed between a piercing member having a plurality of independently resilient protrusions extending therefrom and a backing member having a retiform exterior surface. The piercing member or backup member is moved relative to the other member, thereby causing the resilient protrusions to follow the retiform surface and selectively pierce the film. The piercing member can be a metal comb, a wire brush or a metal strip having a plurality of substantially parallel slits extending from one edge thereof in the direction of the opposite edge defining the resilient protrusions. The backing member can be a wire screen, a perforated metal sheet, an engraved metal roll or an endless belt which is driven longitudinally with respect to the piercing member.
The depressed areas 22 (dimples) are distributed across the surface of the topsheet and bottom sheet in the manner shown in FIGS. 14. Thus, it will be seen that the bottom sheet 14 and topsheet 16 contain a plurality of dimples arranged in staggered parallel rows along the surface of the bottom sheet and topsheet (FIG. 1) and which extend beyond the plane of the bottom sheet and topsheet (FIGS. 2 and 3). The configuration of these dimples can be circular, eliptical, rectangular, diamond shaped, and the like, the important criteria being that they be formed in a manner such that there is substantially no breaking or cutting of the topsheet during or after fabrication.
The full advantages of the present invention are not achieved if, during fabrication of the dimples, the bottom sheet or topsheet is broken, cut, or melted to an extent which would hinder the controlled passage of liquid to the absorbent pad (which as explained previously, is the function of the valvular openings). It will be evident that if cutting or breaking of either sheet 00- curs during fabrication of the dimples, that the liquid will pass through these cuts or breaks when the absorbent pad is unsaturated and once the absorbent pad is saturated or even partially saturated, that these entry points will also serve as points or sites through which the liquid exudes back through the topsheet in contact with, for example, a babys skin.
For these reasons and furthermore in view of the ease and simplicity of fabrication, I have found that the preferred form of the dimple is circular as shown in FIGS. 1-4.
The dimples can be formed in the bottom sheet and topsheet in a variety of ways. The easiest and therefore the most preferred method involves the use of a roller equipped with heating means and having a number of spikes or probes extending therefrom across the width of the roller and around its circumference. The spikes, pins, or probes, which have smooth, rounded end points, can be spaced as desired on the roller in order to provide the desired number of dimples to the diaper insert. The dimples are provided on the diaper insert preferably after the valvular openings, and this operation can be effected by passing the diaper insert containing the valvular openings in contact with the heated roller. In this technique, the diaper insert is supported on a resilient back-up member, such as an endless conveyor belt, or a resilient back-up roller. The depth of the dimple can be controlled by limiting the depth to which the probes depress the film. If desired, portions of the topsheet and bottom sheet may be retained in their untreated (without the dimples) condition. This can be accomplished, for example, along a strip about 1 inch wide near the periphery of the bottom sheet and topsheet. Since each sheet or film is thermoplastic, the amount of heat and pressure applied to the areas to be treated should be strictly controlled in order to avoid substantially puncturing the material. As a general rule, the amount of heat required should be enough to soften the film, and the-amount of pressure should be sufficient to plastically distort the film to the general contour of the probe. It will, of course, be understood that the correct heat and pressure conditions will depend (among other variables) upon the residence time of the treated absorbent pad, i.e., the length of time the sheet is in contact with the roller; the thickness of the absorbent pad, etc. The correct conditions, however, can be easily ascertained by one skilled in the art and hence no further detailed description of the conditions appears necessary.
Referring specifically to FIGS. 3 and 4, it will be seen that the dimples 22 extend beyond the plane of the bottom sheet 14 and top sheet 16 a short distance, and that the absorbent material 12a, immediately below (or above) each dimple, is in a compressed state. At the site where a dimple is formed over a portion of the slit 18, it will be seen that the slit is opened to a much greater degree than corresponding slits situated remote from the dimples 22. However, because of the placement of the dimples, the slits disposed between corresponding dimples are opened to a greater extent than would be the case if no dimples were present. This is attributed to the fact that the pressure exerted on the surface of the topsheet and bottom sheet by the dimples causes the slits to open slightly under the influence of the stretching of the sheet. Portions of the compressed absorbent pad are associated with these opened slits, and because of this association, wicking is achieved at a degree never heretofore achieved. As a matter of fact, in most cases, wicking is instantaneous. As the liquid is transferred to the absorbent pad 12, the absorbent pad absorbs the liquid throughout its entire area until either partial or full saturation. As will be seen in FIG. 4, (which depicts a saturated absorbent pad), the compressed material 12a has expanded and urges the dimples 22 outward, closer to the plane of the bottom sheet and topsheet respectively. This action serves to close the previously opened slits, thereby trapping the bulk of the liquid in the absorbent pad.
Thus, advantageously, according to the present invention, maximum wicking and absorption is achieved during the critical period when flooding, (such as by urination and the like) is experienced, whereas transfer of the liquid from the absorbent pad back through the same slit opening is substantially reduced by virtue of the combination of the valvular action of the slit and the dimple.
The dimples can be arranged on the absorbent article in a variety of patterns. Thus, the overall design effect can be diamond shaped, curvilinear, herringbone and the like. The preferred design configuration is a system of substantially straight staggered, parallel rows along the surface of the topsheet. The number of dimples per square inch of absorbent pad area can be varied over a relatively wide range.
The advantages and wicking characteristics of the dimple-slit combination are fully described in the copending application of Theodore Fredrick Kozak entitled Disposable Absorbent Articles, Ser. No. 312,131, filed on Dec. 4, 1972 and assigned to a common assignee. The range of slit size, dimple size and frequency of each are fully disclosed thereunder. The principal difference between the absorbent article disclosed thereunder and the instant diaper inserts is that in the diaper insert, both sides, i.e. top and bottom sheets, are slitted and dimpled thereby permitting rapid absorption on both sides of the diaper insert. Thus, as disclosed and demonstrated in said copending application, improvements have been noted utilizing as little as one dimple (having a diameter of 0.05 inch) per square inch of absorbent pad. Good results are obtained when as many as dimples (0.05 inch diameter) per square inch of absorbent pad area are utilized. It will of course be understood that the number of dimples per square inch of absorbent pad area depends on the dimple size. As a general rule, the total area occupied by dimples should not exceed more than 20 per cent of the area of the absorbent material. Excellent results are achieved when the total dimple area is from 4 to 12 per cent of the area of the absorbent material. Preferably there are from about three to about 25 dimples (0.10 inch diameter) per square inch of absorbent material area, and most preferably from about six to about 15 per square inch of absorbent pad area.
As a general rule, dimple size can be in the range of about 0.025 to about 0.250 inch diameter. From the standpoint of functional and aesthetic qualities, it is preferred that the dimple size range from about 0.075 to about 0.150 inch diameter.
In still another, but less preferred embodiment, the dimples are associated with the diaper insert depicted in FIG. 5 wherein the slits 18 are shown as being in straight parallel relation.
The fabrication of the diaper insert may be accomplished by a variety of techniques. In a preferred technique, a thin film of thermoplastic material such as an ethylene ethyl acrylate film of the desired thickness is slit according to the procedure described previously. After the slitting operation, the assembly of the diaper insert, more or less, follows conventional methods of fabrication. The topsheet and bottom sheet are cut to approximately the same dimensions which are equal to the desired size of the final diaper insert. The size can be varied according to the desired use, for example, in rectangular form the diaper insert can have a width of 4-6 inches and a length of l0-l8 inches.
The topsheet and bottom sheet are juxtaposed one on the other with the absorbent pad sandwiched therebetween in approximately the center of the sheets. The absorbent pad should be of a length and width slightly smaller than the topsheet and bottom sheet to permit sealing of the topsheet to the backing sheet around their periphery. An overhang of about one-half inch on each side should be sufficient. Sealing can conveniently be accomplished by heat sealing the edges. The heat sealing might also be used to simultaneously accomplish a cutting of the edges to trim excess sheet material from the diaper and yield a diaper structure which is neat in its appearance.
If desired, the absorbent pad may be of hour glass configuration (contoured). In this case, and for ease of fabrication, only the absorbent pad is of hourglass configuration. The bottom sheet and topsheet can be rectangular so as to facilitate the heat sealing of the edges.
Thus, referring to FIG. 6, where like parts are designated by like reference numerals, it will be seen that the absorbent pad 12 is of hourglass configuration, and is sandwiched between bottom sheet 14 and topsheet 16. It will be noted that the bottom sheet and topsheet are substantially rectangular whereas the absorbent pad 12 is of hourglass configuration. This design is merely for ease of fabrication since it will be obvious that the topsheet and bottom sheet can also be of substantially hourglass configuration, corresponding to the shape of absorbent pad 12.
The diaper insert of the instant invention can be utilized in conjunction with conventional diapers of the disposable or non-disposable type. The insert is normally positioned in the center of the diaper as shown in FIG. 7, the diaper insert is positioned on diaper 24 on the side which would normally be in contact with a babys skin. The diaper 24 shown in FIG. 7 is of the disposable type having a wing fold design. This type of fold permits the use of the diaper insert without any securing means since the insert can be held in position by the edges formed by the wing fold. In other type designs, it may be necessary to include attachment means such as tape fasteners and the like in order to prevent migration of the insert during operation. These type of securement means are well known in the art and hence no detailed description appears necessary.
When in position on the diaper, the structure of the insert permits the rapid absorption of liquid through the topsheet. However, when excessive flooding occurs, some of the liquid may flow around the insert between the bottom sheet of the insert and the absorbing surface of the conventional diaper. Since the bottom sheet of the insert is also capable of absorbing liquid as explained previously, some of the liquid will be absorbed into the insert via the bottom sheet thereby minimizing the flow of excess liquid into the diaper.
Surprisingly, it has been found that the combination of the diaper insert and the diaper results in the diaper insert and diaper totally absorbing a disproportionately higher urine load than if the absorbent contained in the diaper insert were added to the diaper absorbent and made an integral part of the diaper. In other words, the degree of total absorbing is greater when the diaper insert and diaper are utilized as described herein as contrasted to using the diaper without the diaper insert but containing the combined amount of absorbent material of the basic diaper and diaper insert.
The slit-dimple construction causes the liquid to be readily absorbed and retained by the insert in the manner previously set forth. Thus when the insert becomes saturated or even partially saturated, the consumer need only replace the insert leaving the basic diaper ready for future use. This of course represents a savings in time and labor and is also highly desirable from a practical economical standpoint.
What is claimed is:
1. A diaper insert which comprises, in combination, at least one absorbent pad disposed between a liquid impermeable hydrophobic topsheet and a liquid impermeable hydrophobic bottom sheet, each of said sheets having a plurality of valvular openings therein, said valvular openings being substantially closable to retard back flow of liquid absorbed by said absorbent pad through said valvular openings, and a system of dimples disposed on each of said topsheet and bottom sheet, said dimples having a frequency of at least one per square inch of absorbent pad area.
2. A diaper insert according to claim 1 wherein said plurality of valvular openings are substantially parallel straight slits disposed in longitudinal rows, each slit being angularly disposed with respect to the longitudinal axis of said row and being arranged in a manner such that the end points of each slit lie in a line substantially between the end points of corresponding slits in adjacent rows.
3. A diaper insert in accordance with claim 2 wherein each slit is from 0.07 to 0.2 inch in length and wherein said slits are present in said topsheet and said bottom sheet in an amount of about 30 to 150 per square inch of topsheet and bottom sheet.
4. A diaper insert in accordance with claim 1 wherein said dimples are disposed on said topsheet and bottom sheet in an amount of about one to about dimples per square inch of absorbent pad area.
5. A diaper insert according to claim 1 wherein said dimples are disposed on said topsheet and bottom sheet in an amount of about three to about 25 dimples per square inch of absorbent pad area.
6. A diaper insert according to claim 1 wherein said dimples are disposed on said topsheet and bottom sheet in an amount of about six to about 15 dimples per square inch of absorbent pad area.
7. A diaper insert in accordance with claim 1 wherein said dimples have a circular configuration with a diameter of from about 0.025 to about 0.250 inch.
8. A diaper insert according to claim I wherein said topsheet and bottom sheet are each 0.5 to 2.0 mil thick and of substantially the same dimensions and being at least partially adhered to each other around their periphery to form an integrated structure having the absorbent pad substantially enclosed and sandwiched between the topsheet and bottom sheet.
9. A diaper insert according to claim 8 wherein said topsheet and bottom sheet are fabricated from ethylene-ethyl acrylate.
10. A diaper insert according to claim 1 having a rectangular configuration. I
1 l. A diaper insert according to claim 1 wherein said absorbent pad has a contoured configuration.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US2549982 *||17 Nov 1948||24 Apr 1951||Diapette Inc||Diaper pants and pad for same|
|US3292619 *||6 Dec 1963||20 Dec 1966||Kendall & Co||Absorbent dressing|
|US3399672 *||8 Feb 1966||3 Sep 1968||Johnson & Johnson||Dressing|
|US3563242 *||25 Jan 1968||16 Feb 1971||Bengt Hedstrom||Diaper|
|US3814101 *||4 Dec 1972||4 Jun 1974||Union Carbide Corp||Disposable absorbent articles|
|US3815602 *||31 Dec 1969||11 Jun 1974||Du Pont||Disposable diaper|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3965906 *||24 Feb 1975||29 Jun 1976||Colgate-Palmolive Company||Absorbent article with pattern and method|
|US3967623 *||30 Jun 1975||6 Jul 1976||Johnson & Johnson||Disposable absorbent pad|
|US3994299 *||24 Feb 1975||30 Nov 1976||Colgate-Palmolive Company||Absorbent article|
|US4036233 *||2 Jul 1976||19 Jul 1977||Union Carbide Corporation||Flexible waist diaper|
|US4041949 *||2 Jul 1976||16 Aug 1977||Union Carbide Corporation||Flexible waistband diaper|
|US4128686 *||14 Jan 1977||5 Dec 1978||William Kyle||Management of incontinence|
|US4166464 *||13 May 1977||4 Sep 1979||Johnson & Johnson||Absorbent dressing|
|US4275811 *||23 Nov 1979||30 Jun 1981||Cellu Products Company||Receptacle for containing and displaying food products|
|US4306559 *||27 Feb 1980||22 Dec 1981||Kao Soap Company, Ltd.||Moisture-permeable disposable diapers|
|US4321997 *||29 Apr 1981||30 Mar 1982||Miller Alan H||Receptacle for moisture-exuding food products|
|US4323068 *||25 Feb 1980||6 Apr 1982||The Procter & Gamble Company||Diaper with embossed textile sheet|
|US4341217 *||17 Nov 1980||27 Jul 1982||The Procter & Gamble Company||Barrierless disposable absorbent article having an absorbent core encased in a homogeneous outer wrap|
|US4360015 *||14 May 1981||23 Nov 1982||Hartford Corporation||Multilayer absorbent structure|
|US4373519 *||26 Jun 1981||15 Feb 1983||Minnesota Mining And Manufacturing Company||Composite wound dressing|
|US4382507 *||1 Apr 1981||10 May 1983||Cellu Products Company||Absorbent pad|
|US4397644 *||4 Feb 1982||9 Aug 1983||Kimberly-Clark Corporation||Sanitary napkin with improved comfort|
|US4475911 *||13 Apr 1981||9 Oct 1984||The Procter & Gamble Company||Absorbent devices|
|US4556474 *||5 Jul 1984||3 Dec 1985||Eastman Kodak Company||Device for determining ionic analyte activity|
|US4568341 *||10 Mar 1983||4 Feb 1986||James G. Mitchell||Absorbent pads, incontinence care products and methods of production|
|US4629643 *||31 May 1985||16 Dec 1986||The Procter & Gamble Company||Microapertured polymeric web exhibiting soft and silky tactile impression|
|US4643726 *||29 Jun 1984||17 Feb 1987||E. R. Squibb & Sons, Inc.||Incontinence insert|
|US4678527 *||17 Sep 1984||7 Jul 1987||Personal Products Company||Method for making nonplanar absorbent products|
|US4723953 *||18 Aug 1986||9 Feb 1988||Rocky Mountain Medical Corporation||Absorbent pad|
|US4798602 *||4 Mar 1986||17 Jan 1989||Exxon Chemical Patents Inc.||Disposable liquid-absorbent products|
|US4839216 *||1 Jun 1987||13 Jun 1989||The Procter & Gamble Company||Formed material produced by solid-state formation with a high-pressure liquid stream|
|US4846813 *||25 Sep 1985||11 Jul 1989||Kimberly-Clark Corporation||Self-sealing fluid absorbent article|
|US4938756 *||3 Dec 1985||3 Jul 1990||Chicopee||Auxiliary absorbent article|
|US4940621 *||19 Sep 1988||10 Jul 1990||Clean-Pak, Inc.||Absorbent pad and method for constructing same|
|US4941933 *||9 Nov 1988||17 Jul 1990||Johnson & Johnson||Method of making a body member conformable disposable articles|
|US4994037 *||9 Jul 1990||19 Feb 1991||Kimberly-Clark Corporation||Absorbent structure designed for absorbing body fluids|
|US5009650 *||6 Aug 1987||23 Apr 1991||Kimberly-Clark Corporation||Absorbent structure designed for absorbing body fluids|
|US5022945 *||20 Feb 1990||11 Jun 1991||Clean-Pak, Inc.||Method for constructing absorbent pad|
|US5037416 *||9 Mar 1989||6 Aug 1991||The Procter & Gamble Company||Disposable absorbent article having elastically extensible topsheet|
|US5055332 *||18 Sep 1989||8 Oct 1991||Clean-Pak, Inc.||Absorbent pad and method for constructing same|
|US5128193 *||4 Sep 1991||7 Jul 1992||Chicopee||Absorbent fibrous structure|
|US5160331 *||2 Dec 1991||3 Nov 1992||Progeny Products, Inc.||Absorbent insert|
|US5171238 *||16 Mar 1989||15 Dec 1992||The Transzonic Companies||Absorbent pad with fibrous facing sheet|
|US5176668 *||19 Sep 1989||5 Jan 1993||Kimberly-Clark Corporation||Absorbent structure designed for absorbing body fluids|
|US5242435 *||4 Jan 1991||7 Sep 1993||Johnson & Johnson Inc.||Highly absorbent and flexible cellulosic pulp fluff sheet|
|US5269981 *||30 Sep 1991||14 Dec 1993||Kimberly-Clark Corporation||Process for hydrosonically microaperturing|
|US5300192 *||17 Aug 1992||5 Apr 1994||Weyerhaeuser Company||Wet laid fiber sheet manufacturing with reactivatable binders for binding particles to fibers|
|US5308896 *||17 Aug 1992||3 May 1994||Weyerhaeuser Company||Particle binders for high bulk fibers|
|US5314737 *||30 Sep 1991||24 May 1994||Kimberly-Clark Corporation||Area thinned thin sheet materials|
|US5336452 *||23 Sep 1992||9 Aug 1994||Kimberly-Clark Corporation||Process for hydrosonically area embossing thin thermoplastic film materials|
|US5352480 *||17 Aug 1992||4 Oct 1994||Weyerhaeuser Company||Method for binding particles to fibers using reactivatable binders|
|US5360422 *||3 Nov 1992||1 Nov 1994||Caring Products International, Inc.||Washable diaper with liquid impervious channel for retaining disposable absorbent insert|
|US5370830 *||23 Sep 1992||6 Dec 1994||Kimberly-Clark Corporation||Hydrosonic process for forming electret filter media|
|US5401267 *||21 Jun 1994||28 Mar 1995||Kimberly-Clark Corporation||Absorbent article having enhanced wicking capacity|
|US5431643 *||24 Aug 1993||11 Jul 1995||The Procter & Gamble Company||Absorbent article having a nonwoven topsheet with fluid impervious areas|
|US5437653 *||12 May 1993||1 Aug 1995||Kimberly-Clark Corporation||Absorbent article having two coapertured layers and a method of making the article|
|US5443886 *||30 Sep 1991||22 Aug 1995||Kimberly-Clark Corporation||Hydrosonically embedded soft thin film materials|
|US5447977 *||15 Nov 1993||5 Sep 1995||Weyerhaeuser Company||Particle binders for high bulk fibers|
|US5454800 *||12 May 1993||3 Oct 1995||Kimberly-Clark Corporation||Absorbent article|
|US5454801 *||11 Jul 1994||3 Oct 1995||Mcneil-Ppc, Inc.||Printed polymer coatings and method for making same|
|US5514308 *||11 Jan 1995||7 May 1996||Kimberly-Clark Corporation||Method for hydrosonically embedding a material in a soft thin film material|
|US5522809 *||2 Aug 1993||4 Jun 1996||Paper-Pak Products, Inc.||Absorbent adult fitted briefs and pads|
|US5536555 *||1 Feb 1995||16 Jul 1996||Kimberly-Clark Corporation||Liquid permeable, quilted film laminates|
|US5538783 *||17 Aug 1992||23 Jul 1996||Hansen; Michael R.||Non-polymeric organic binders for binding particles to fibers|
|US5543215 *||17 Aug 1992||6 Aug 1996||Weyerhaeuser Company||Polymeric binders for binding particles to fibers|
|US5547541 *||16 Feb 1994||20 Aug 1996||Weyerhaeuser Company||Method for densifying fibers using a densifying agent|
|US5547745 *||17 Aug 1993||20 Aug 1996||Weyerhaeuser Company||Particle binders|
|US5556393 *||28 Feb 1992||17 Sep 1996||Molnlycke Ab||Insert for an absorbent article|
|US5571618 *||17 Jun 1994||5 Nov 1996||Weyerhaeuser Company||Reactivatable binders for binding particles to fibers|
|US5589256 *||17 Aug 1992||31 Dec 1996||Weyerhaeuser Company||Particle binders that enhance fiber densification|
|US5607759 *||17 Aug 1993||4 Mar 1997||Weyerhaeuser Company||Particle binding to fibers|
|US5609727 *||7 Feb 1994||11 Mar 1997||Weyerhaeuser Company||Fibrous product for binding particles|
|US5611885 *||7 Jun 1995||18 Mar 1997||Weyerhaeuser Company||Particle binders|
|US5614570 *||4 Apr 1995||25 Mar 1997||Weyerhaeuser Company||Absorbent articles containing binder carrying high bulk fibers|
|US5620742 *||15 Mar 1995||15 Apr 1997||Mcneil-Ppc, Inc.||Method for making absorbent articles having printed polymer coatings|
|US5641561 *||17 Aug 1993||24 Jun 1997||Weyerhaeuser Company||Particle binding to fibers|
|US5672418 *||17 Aug 1993||30 Sep 1997||Weyerhaeuser Company||Particle binders|
|US5677028 *||9 Apr 1996||14 Oct 1997||Wearever Health Care Products, Llc||Absorbent material|
|US5693411 *||17 Aug 1993||2 Dec 1997||Weyerhaeuser Company||Binders for binding water soluble particles to fibers|
|US5789326 *||19 Nov 1996||4 Aug 1998||Weyerhaeuser Company||Particle binders|
|US5807364 *||4 Apr 1995||15 Sep 1998||Weyerhaeuser Company||Binder treated fibrous webs and products|
|US5810798 *||15 Jan 1997||22 Sep 1998||Kimberly-Clark Worldwide, Inc.||Absorbent article having a thin, efficient absorbent core|
|US5833679 *||18 Nov 1996||10 Nov 1998||Uni-Charm Corporation||Absorbent structure of sanitary article|
|US5879487 *||17 Jul 1997||9 Mar 1999||Wearco Llc||Absorbent material and method for making same|
|US5925026 *||10 Mar 1997||20 Jul 1999||Kimberly-Clark Worldwide, Inc.||Apertured absorbent pads for use in absorbent articles|
|US5986167 *||24 Mar 1998||16 Nov 1999||Kimberly-Clark Worldwide, Inc.||Method of distributing liquid in apertured absorbent pads|
|US5998032 *||5 Jul 1996||7 Dec 1999||Weyerhaeuser Company||Method and compositions for enhancing blood absorbence by superabsorbent materials|
|US6049915 *||1 Mar 1996||18 Apr 2000||Paul Hartmann Ag||Item of clothing, especially disposable clothing for use once only|
|US6071549 *||6 Aug 1998||6 Jun 2000||Weyerhaeuser Company||Binder treated fibrous webs and products|
|US6206865||1 Oct 1996||27 Mar 2001||Kimberly-Clark Worldwide, Inc.||Absorbent article having a cellulosic transfer layer|
|US6222092||21 Jul 1997||24 Apr 2001||Paragon Trade Brands, Inc.||Absorbent garment with top sheet impediment to liquid flow|
|US6270893||7 Mar 1994||7 Aug 2001||Weyerhaeuser Company||Coated fiber product with adhered super absorbent particles|
|US6340411||7 Oct 1998||22 Jan 2002||Weyerhaeuser Company||Fibrous product containing densifying agent|
|US6391453 *||4 Mar 1998||21 May 2002||Weyernaeuser Company||Binder treated particles|
|US6395395||6 Dec 1999||28 May 2002||Weyerhaeuser Company||Method and compositions for enhancing blood absorbence by superabsorbent materials|
|US6425979||3 May 2001||30 Jul 2002||Weyerhaeuser Company||Method for making superabsorbent containing diapers|
|US6461553||31 Jan 1997||8 Oct 2002||Weyerhaeuser||Method of binding binder treated particles to fibers|
|US6503233||2 Oct 1998||7 Jan 2003||Kimberly-Clark Worldwide, Inc.||Absorbent article having good body fit under dynamic conditions|
|US6521087||4 May 2001||18 Feb 2003||Weyerhaeuser Company||Method for forming a diaper|
|US6521339||18 May 2000||18 Feb 2003||Weyerhaeuser Company||Diol treated particles combined with fibers|
|US6562192||12 Apr 2000||13 May 2003||Kimberly-Clark Worldwide, Inc.||Absorbent articles with absorbent free-flowing particles and methods for producing the same|
|US6596103||1 Nov 2000||22 Jul 2003||Weyerhaeuser Company||Method of binding binder treated particles to fibers|
|US6603052||25 May 2001||5 Aug 2003||John E. Davis||Fluid absorbent article for surgical use|
|US6613028||22 Dec 1998||2 Sep 2003||Kimberly-Clark Worldwide, Inc.||Transfer delay for increased access fluff capacity|
|US6616643||22 Mar 2000||9 Sep 2003||Johnson & Johnson Industria E Comercio Ltda||Absorbent article|
|US6627249||18 Mar 2002||30 Sep 2003||Weyerhaeuser Company||Method of enhancing blood absorbence by superabsorbent material|
|US6667424||12 Apr 2000||23 Dec 2003||Kimberly-Clark Worldwide, Inc.||Absorbent articles with nits and free-flowing particles|
|US6673982||2 Oct 1998||6 Jan 2004||Kimberly-Clark Worldwide, Inc.||Absorbent article with center fill performance|
|US6695827||27 Nov 2002||24 Feb 2004||Kimberly-Clark Worldwide, Inc.||Absorbent article having good body fit under dynamic conditions|
|US6793649 *||22 Mar 1999||21 Sep 2004||Uni-Charm Corporation||Absorbent article for prevention of sideward leak|
|US6888044||23 Dec 2002||3 May 2005||Kimberly-Clark Worldwide, Inc.||High capacity absorbent structure and method for producing same|
|US6921393||22 Feb 2002||26 Jul 2005||Kimberly-Clark Worldwide, Inc.||Absorbent article for absorbing body fluids|
|US6932800||23 Jul 2001||23 Aug 2005||The Procter & Gamble Company||Absorbent articles comprising a material having a high vertical wicking capacity|
|US6936038||22 Feb 2002||30 Aug 2005||Kimberly-Clark Worldwide, Inc.||Absorbent article having a pair of fringes|
|US6966436 *||1 May 2003||22 Nov 2005||Precision Fabrics Group, Inc.||Absorbent mats for food packaging|
|US6989005||27 Mar 1997||24 Jan 2006||The Procter & Gamble Company||Absorbent articles having removable components|
|US6989006||9 Apr 2003||24 Jan 2006||The Procter And Gamble Company||Disposable absorbent articles having multiple absorbent core components including replaceable components|
|US7000260||18 Mar 2003||21 Feb 2006||Kimberly-Clark Worldwide, Inc.||Disposable garment and related manufacturing equipment and methods|
|US7005558 *||25 Apr 1997||28 Feb 2006||Sca Hygiene Products Ab||Apertured covering sheet for an absorbent article and a method of producing the covering sheet|
|US7018490||7 May 2003||28 Mar 2006||Weyerhaeuser Company||Method of binding binder treated particles to fibers|
|US7090665 *||29 Nov 2001||15 Aug 2006||Uni-Charm Corporation||Disposable diaper|
|US7144474||15 Aug 2000||5 Dec 2006||Weyerhaeuser Co.||Method of binding particles to binder treated fibers|
|US7175613||21 Mar 2003||13 Feb 2007||The Procter & Gamble Company||Absorptive product having removable absorbers|
|US7264615||3 Apr 2001||4 Sep 2007||Kimberly-Clark Worldwide, Inc.||Absorbent insert for use with an outer absorbent garment|
|US7265258||12 Sep 2003||4 Sep 2007||Kimberly-Clark Worldwide, Inc.||Absorbent articles with nits and free-flowing particles|
|US7291137||9 Apr 2003||6 Nov 2007||The Procter & Gamble Company||Disposable absorbent articles having multiple absorbent core components including replaceable components|
|US7306094||2 May 2005||11 Dec 2007||Precision Fabrics Group, Inc.||Absorbent mats for food packaging|
|US7381202||7 Jul 2005||3 Jun 2008||The Procter & Gamble Company||Disposable absorbent articles having multiple absorbent core components including replaceable components|
|US7429689||15 Sep 2003||30 Sep 2008||Kimberly-Clark Worldwide, Inc.||Absorbent article with center fill performance|
|US7491863||31 Dec 2002||17 Feb 2009||Kimberly-Clark Worldwide, Inc.||Secondary lotioned article|
|US7494483||2 Jun 2006||24 Feb 2009||The Procter And Gamble Company|
|US7504553 *||18 Aug 2005||17 Mar 2009||Kao Corporation||Absorbent article|
|US7572250||13 Nov 2002||11 Aug 2009||Sca Hygiene Products Ab||Absorbent article|
|US7589250||9 Dec 2002||15 Sep 2009||Sca Hygiene Products Ab||Absorbent article and method of production of an absorbent article|
|US7598428||18 Oct 2005||6 Oct 2009||Sca Hygiene Products Ab||Absorbent article and method of production|
|US7601145||9 Apr 2003||13 Oct 2009||The Procter & Gamble Company|
|US7670324||3 Dec 2002||2 Mar 2010||The Procter And Gamble Company||Disposable absorbent articles with replaceable absorbent core components having regions of permeability and impermeability on same surface|
|US7727211||2 Jun 2005||1 Jun 2010||The Procter & Gamble Company||Absorbent article having a replaceable absorbent core component having an insertion pocket|
|US7727218||29 Oct 2007||1 Jun 2010||The Procter & Gamble Company|
|US7766887||13 Nov 2006||3 Aug 2010||The Procter & Gamble Company||Method for making reusable disposable article|
|US7785437||26 Jan 2007||31 Aug 2010||L&P Property Management Company||Anti-microbial carpet underlay and method of making|
|US7812213 *||28 Dec 2004||12 Oct 2010||Sca Hygiene Products Ab||Absorbent article with through-slits surrounded by binding areas|
|US7824386||26 Oct 2006||2 Nov 2010||The Procter & Gamble Company||Method for using a disposable absorbent article as a swim pant|
|US7824387||26 Oct 2006||2 Nov 2010||The Procter & Gamble Company||Method for using a disposable absorbent article as training pant|
|US7855316||20 Dec 2002||21 Dec 2010||Kimberly-Clark Worldwide, Inc.||Preferentially stretchable laminates with perforated layers|
|US7875343||31 Oct 2007||25 Jan 2011||L & P Property Management Company||Anti-microbial carpet underlay and method of making|
|US7887524||9 May 2006||15 Feb 2011||The Procter & Gamble Company|
|US7976523||10 Dec 2002||12 Jul 2011||Japan Absorbent Technology Institute||Absorbent product with nonpermeable surface sheet|
|US8075542||9 May 2006||13 Dec 2011||The Procter & Gamble Company|
|US8142590||27 Oct 2010||27 Mar 2012||Kimberly-Clark Worldwide, Inc.||Method of manufacturing a disposable undergarment|
|US8153856 *||28 Dec 2007||10 Apr 2012||Sca Hygiene Products Ab||Absorbent article having absorbent core including regions of lower density|
|US8187241||11 Dec 2006||29 May 2012||The Procter & Gamble Company|
|US8192415||2 Jun 2006||5 Jun 2012||The Procter & Gamble Company|
|US8622984||27 Oct 2010||7 Jan 2014||Kimberly-Clark Worldwide, Inc.||Disposable undergarment and related manufacturing equipment and processes|
|US20030105447 *||13 Nov 2002||5 Jun 2003||Urban Widlund||Absorbent article|
|US20030163104 *||22 Feb 2002||28 Aug 2003||Kimberly-Clark Worldwide, Inc.||Method of securing an abosrbent article to a primary absorbent undergarment|
|US20030163105 *||22 Feb 2002||28 Aug 2003||Kimberly-Clark Worldwide, Inc.||Absorbent article having a pair of fringes|
|US20030163108 *||22 Feb 2002||28 Aug 2003||Kimberly-Clark Worldwide, Inc.||Absorbent article for absorbing body fluids|
|US20030196253 *||18 Mar 2003||23 Oct 2003||Kimberly-Clark Worldwide, Inc.||Disposable garment and related manufacturing equipment and methods|
|US20030201051 *||7 May 2003||30 Oct 2003||Weyerhaeuser Company||Particle binding to fibers field of the invention|
|US20030220623 *||21 Mar 2003||27 Nov 2003||The Procter & Gamble Company||Sbsorptive product having removable absorbers|
|US20040039361 *||9 Apr 2003||26 Feb 2004||The Procter & Gamble Company|
|US20040058605 *||19 Sep 2002||25 Mar 2004||Hansen Michael R.||Polysaccharide treated cellulose fibers|
|US20040102752 *||15 Sep 2003||27 May 2004||Fung-Jou Chen||Absorbent article with center fill performance|
|US20040122394 *||23 Dec 2002||24 Jun 2004||Kimberly-Clark Worldwide, Inc.||High capacity absorbent structure and method for producing same|
|US20040122404 *||20 Dec 2002||24 Jun 2004||Meyer Stephen C.||Preferentially stretchable laminates with perforated layers|
|US20040126519 *||31 Dec 2002||1 Jul 2004||Odorzynski Thomas W.||Solids-entrapping secondary article|
|US20040127870 *||27 Dec 2002||1 Jul 2004||Dipalma Joseph||Thin curved elasticized absorbent article with absorbent concentration profile|
|US20040127871 *||31 Dec 2002||1 Jul 2004||Odorzynski Thomas W.||Secondary absorbent article|
|US20040127877 *||31 Dec 2002||1 Jul 2004||Odorzynski Thomas W.||Secondary lotioned article|
|US20040226834 *||1 May 2003||18 Nov 2004||Baldwin Alfred Frank||Absorbent mats for food packaging|
|US20050000669 *||14 Mar 2003||6 Jan 2005||Hugh West||Saccharide treated cellulose pulp sheets|
|US20050010183 *||24 Jun 2003||13 Jan 2005||Weyerhaeuser Company||Absorbent structure for absorbing blood|
|US20050031841 *||5 Aug 2003||10 Feb 2005||Weyerhaeuser Company||Attachment of superabsorbent materials to fibers using oil|
|US20050133180 *||19 Dec 2003||23 Jun 2005||Hugh West||Densification agent and oil treated cellulose fibers|
|US20050178518 *||13 Feb 2004||18 Aug 2005||Hugh West||Sodium sulfate treated pulp|
|US20050191462 *||2 May 2005||1 Sep 2005||Precision Fabrics Group, Inc.||Absorbent mats for food packaging|
|US20050228356 *||2 Jun 2005||13 Oct 2005||Lavon Gary D||Absorbent article having a replaceable absorbent core component having an insertion pocket|
|US20050256480 *||7 Jul 2005||17 Nov 2005||La Von Gary D||Disposable absorbent articles having multiple absorbent core components including relpaceable components|
|US20060036226 *||18 Oct 2005||16 Feb 2006||Sca Hygiene Products Ab||Absorbent article and method of production|
|US20060041239 *||18 Aug 2005||23 Feb 2006||Kao Corporation||Absorbent article|
|US20060058769 *||10 Dec 2002||16 Mar 2006||Migaku Suzuki||Absorber product with nonpermeable surface sheet|
|US20060064069 *||30 Sep 2005||23 Mar 2006||Rajala Gregory J||Disposable undergarment and related manufacturing equipment and processes|
|US20060122569 *||9 Dec 2002||8 Jun 2006||Sca Hygiene Products Ab||Absorbent article and method of production of an absorbent article|
|US20060206086 *||9 May 2006||14 Sep 2006||Lavon Gary D|
|US20060206087 *||9 May 2006||14 Sep 2006||Lavon Gary D|
|US20060206088 *||9 May 2006||14 Sep 2006||Lavon Gary D|
|US20060212016 *||9 May 2006||21 Sep 2006||Lavon Gary D|
|US20060217676 *||9 May 2006||28 Sep 2006||Lavon Gary D|
|US20060217679 *||3 May 2006||28 Sep 2006||Hanly Kevin B||Intravenous drug access system|
|US20060253093 *||2 Jun 2006||9 Nov 2006||The Procter & Gamble Company|
|US20070039268 *||1 Aug 2006||22 Feb 2007||L&P Property Management Company||Energy Absorptive/Moisture Resistive Underlayment Formed using Recycled Materials and a Hard Flooring System Incorporating the Same|
|US20070078420 *||8 Dec 2006||5 Apr 2007||The Procter & Gamble Company||Absorptive product having removable absorbers|
|US20070083181 *||11 Dec 2006||12 Apr 2007||Lavon Gary D|
|US20070107862 *||5 Jan 2007||17 May 2007||Weyerhaeuser Co.||Sodium sulfate treated pulp|
|US20070122608 *||26 Jan 2007||31 May 2007||L&P Property Management Company||Anti-microbial carpet underlay and method of making|
|US20070202220 *||28 Feb 2006||30 Aug 2007||Dicosola Susan T||Food storage preserver|
|US20080041737 *||25 Oct 2007||21 Feb 2008||Precision Fabrics Group, Inc.||Absorbent Mats for Food Packaging|
|US20080050577 *||31 Oct 2007||28 Feb 2008||L&P Property Management Company||Anti-microbial carpet underlay and method of making|
|US20080058754 *||29 Oct 2007||6 Mar 2008||Lavon Gary D|
|US20080066237 *||19 Sep 2006||20 Mar 2008||Boyd Flotation, Inc.||Anti-Microbial Mattress and Improved Support Core|
|US20080103467 *||28 Dec 2007||1 May 2008||Sca Hygiene Products Ab||Absorbent article having improved fit|
|US20080103471 *||26 Oct 2006||1 May 2008||The Procter & Gamble Company||Method for using a disposable absorbent article as a swim pant|
|US20080110775 *||13 Nov 2006||15 May 2008||Theodora Beck||Absorbent articles with replaceable core components having stiffness characteristics and method for evaluating such characteristics|
|US20080114320 *||13 Nov 2006||15 May 2008||Theodora Beck||Absorbent articles having fluid partitioning characteristics and method for evaluating such characteristics|
|US20090118693 *||7 Jan 2009||7 May 2009||Odorzynski Thomas W||Secondary Lotioned Article|
|US20090247978 *||30 Jun 2006||1 Oct 2009||Sca Hygiene Products Ab||Absorbent product|
|US20100258242 *||22 Jun 2010||14 Oct 2010||Burns Jr John Glasgow||Method for Making Reusable Disposable Article|
|US20100285298 *||11 Nov 2010||L&P Property Management Company||Anti-microbial carpet underlay and method of making|
|US20110040277 *||27 Oct 2010||17 Feb 2011||Kimberly-Clark Worldwide, Inc.||Disposable Undergarment and Related Manufacturing Equipment and Processes|
|US20110073239 *||2 Dec 2010||31 Mar 2011||L & P Property Management Company||Method of making recycled energy absorbing underlayment and moisture barrier for hard flooring system|
|US20110173924 *||21 Jul 2011||L&P Property Management Company||Energy Absorptive/Moisture Resistive Underlayment Formed Using Recycled Materials and a Hard Flooring System Incorporating the Same|
|US20130211365 *||15 Mar 2013||15 Aug 2013||Kimberly-Clark Worldwide, Inc.||Disposable Undergarment and Related Manufacturing Equipment and Processes|
|USRE30972 *||21 Feb 1980||15 Jun 1982||Nicholas Proprietary Limited||Management of incontinence|
|EP0052403A1 *||5 Nov 1981||26 May 1982||THE PROCTER & GAMBLE COMPANY||Barrierless disposable absorbent article having an absorbent core encased in a homogeneous outer wrap|
|EP0297069A2 *||20 Jun 1988||28 Dec 1988||Brabis Investment Ltd.||Process for the manufacture of a liquid absorbing pad|
|EP0319314A2 *||2 Dec 1988||7 Jun 1989||THE PROCTER & GAMBLE COMPANY||Dual function disposable absorbent insert having a removable backsheet|
|EP1043004A2 *||6 Apr 2000||11 Oct 2000||Johnson & Johnson Industria e Comercio Ltda.||An absorbent article|
|EP1570824A1 *||10 Dec 2002||7 Sep 2005||Japan Absorbent Technology Institute||Absorber product with nonpermeable surface sheet|
|WO1990003320A1 *||18 Sep 1989||5 Apr 1990||Clean Pak Inc||Absorbent pad and method of constructing same|
|WO2004052257A1||10 Dec 2002||24 Jun 2004||Japan Absorbent Tech Inst||Absorber product with nonpermeable surface sheet|
|WO2004099009A2 *||12 Feb 2004||18 Nov 2004||Precision Fabrics Group Inc||Improved absorbent mats for food packaging|
|WO2005039470A1 *||20 Oct 2004||6 May 2005||Procter & Gamble||Absorbent article with breathable backsheet comprising occluding fluid passageways|
|U.S. Classification||604/370, D24/126, 604/366, 604/385.8, D05/53, 604/393, 604/378, 604/368|
|International Classification||A61F13/53, A61F13/511, A61F13/49, A61F13/514, A61F13/15|
|Cooperative Classification||A61F2013/51409, A61F13/511, A61F2013/53445, A61F13/512, A61F2013/51372, A61F13/534, A61F2013/51078|
|10 Apr 1991||AS||Assignment|
Owner name: FIRST BRANDS CORPORATION
Free format text: RELASE OF SECURITY INTEREST RECORDED AT REEL 4645 AND FRAME 280-363 ON 12-08-1986.;ASSIGNOR:MANUFACTURERS HANOVER TRUST COMPANY;REEL/FRAME:005717/0599
Effective date: 19900802
|17 Aug 1990||AS||Assignment|
Owner name: CONNECTICUT NATONAL BANK, THE
Free format text: SECURITY INTEREST;ASSIGNOR:FIRST BRANDS CORPORATION, A CORPORATION OF DE;REEL/FRAME:005722/0231
Effective date: 19900615
|17 Aug 1990||AS06||Security interest|
Owner name: CONNECTICUT NATONAL BANK, THE
Effective date: 19900615
Owner name: FIRST BRANDS CORPORATION, A CORPORATION OF DE
Effective date: 19900615
|8 Dec 1986||AS||Assignment|
Owner name: MANUFACTURERS HANOVER TRUST COMPANY
Free format text: SECURITY INTEREST;ASSIGNOR:FIRST BRANDS CORPORATION, A CORP OF DE;REEL/FRAME:004645/0280
Effective date: 19860701
|8 Oct 1986||AS||Assignment|
Owner name: UNION CARBIDE CORPORATION,
Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:MORGAN BANK (DELAWARE) AS COLLATERAL AGENT;REEL/FRAME:004665/0131
Effective date: 19860925
|15 Sep 1986||AS||Assignment|
Owner name: FIRST BRANDS CORPORATION, 39 OLD RIDGEBURY RD., DA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:UNION CARBIDE CORPORATION, A CORP OF NY;REEL/FRAME:004611/0201
Effective date: 19860630
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:UNION CARBIDE CORPORATION, A CORP OF NY;REEL/FRAME:004611/0201
|9 Jan 1986||AS||Assignment|
Owner name: MORGAN GUARANTY TRUST COMPANY OF NEW YORK, AND MOR
Free format text: MORTGAGE;ASSIGNORS:UNION CARBIDE CORPORATION, A CORP.,;STP CORPORATION, A CORP. OF DE.,;UNION CARBIDE AGRICULTURAL PRODUCTS CO., INC., A CORP. OF PA.,;AND OTHERS;REEL/FRAME:004547/0001
Effective date: 19860106