WO1999062447A1 - Culotte jetable et procede permettant de la produire en continu - Google Patents
Culotte jetable et procede permettant de la produire en continu Download PDFInfo
- Publication number
- WO1999062447A1 WO1999062447A1 PCT/JP1998/002402 JP9802402W WO9962447A1 WO 1999062447 A1 WO1999062447 A1 WO 1999062447A1 JP 9802402 W JP9802402 W JP 9802402W WO 9962447 A1 WO9962447 A1 WO 9962447A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- elastic member
- disposable pants
- absorber
- leg
- nonwoven fabric
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15699—Forming webs by bringing together several webs, e.g. by laminating or folding several webs, with or without additional treatment of the webs
Definitions
- the present invention relates to a disposable pants having a waist opening and a pair of leg openings, and having a left and right portion joined in advance, and has an excellent shape-retaining property and can be easily manufactured.
- the present invention relates to a disposable pants provided with the method and a continuous production method thereof. Background art
- the disposable pants currently on the market are designed on the premise that the wearer walks and exercises while wearing the disposable pants, so that the absorbent body of the disposable pants is required to have high shape retention performance.
- thermoplastic resin as a material for shape preservation in the form of fibers or particles, in addition to pulp fibers and water-absorbent resin particles, is employed in the absorber. That is, when such an absorber is heat-treated, the thermoplastic material melts and adheres to the pulp fibers and the water-absorbent resin particles. By adhering to each other, the shape retention of the absorber is enhanced. In addition, the introduction of the thermoplastic resin and the heat-compression treatment can also provide the effect of keeping the fluffy and bulky absorber thin.
- thermoplastic resin if the fibers and particles of the thermoplastic resin are not uniformly dispersed in the absorber and are in an unevenly dispersed state such as being concentrated in some places, the concentrated portion of the thermoplastic resin becomes urinary. There is a problem in that diffusion and permeation are hindered, and swelling due to water absorption of the water-absorbent resin particles is prevented, thereby reducing the rate of excretion absorption.
- the absorbent obtained by stacking the fibers is heated. It is necessary to prepare an oven for processing. A hot air circulating furnace is generally used as this oven. However, it is difficult for hot air to reach the interior of the absorbent which is piled to a thickness of about 1 Omm, and the pulp fibers on the surface of the absorbent are not scorched (that is, not heated to an excessively high temperature). In order to heat the melt to the melting temperature of the thermoplastic resin, the time required for the absorber to pass through the oven must be increased.
- conventional disposable pants are made of non-woven fabric or the like, and thread-like or band-like elastic members (natural rubber, polyurethane, polyolefin elastomer, etc.) are attached near the waist opening and a pair of leg openings.
- thread-like or band-like elastic members natural rubber, polyurethane, polyolefin elastomer, etc.
- the adhesion to the wearer is insufficient.
- the lower abdomen and buttocks do not adhere to the wearer's body and bulge outward, so for example, mild incontinent wears disposable pants, Later, when wearing normal clothing (trousers or skirt), the waist swells, which is not desirable in appearance.
- a first object of the present invention is to provide a disposable pants having an absorbent structure with good shape retention without employing a means of mixing thermoplastic resin fibers or particles with pulp fibers and performing a heat treatment. It is to manufacture quickly.
- the second purpose is to provide disposable pants that are in close contact with the wearer and have a less visible appearance. Disclosure of the invention
- the present invention is a.
- an elastic member is attached near the periphery of these openings, and left and right sides are joined,
- the disposable pants include an outer sheet and an inner absorbent member,
- the outer sheet has a waist elastic member and a leg elastic member attached thereto, and a plurality of thread-like members parallel to the waist elastic member interposed between the waist elastic member and the leg elastic member.
- a fitting elastic member made of an elastic body is attached, and the inner absorbing member includes a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber housed between the two sheets,
- the absorber has an upper layer made of a mixture of pulp fibers and water-absorbent resin particles, an intermediate layer provided with a first nonwoven fabric, and a lower layer made of a mixture of pulp fibers and water-absorbent resin particles.
- the lower layer is bonded by an adhesive
- the absorbent Due to the presence of the flexible fitting member, the adhesion to the wearer and the appearance after wearing become very good.
- the absorbent since the absorbent has a nonwoven fabric as an intermediate layer, and the upper and lower absorbent layers are bonded to this intermediate layer nonwoven fabric with an adhesive, it exhibits good shape retention and does not require a heat treatment, thereby producing Speed can be increased.
- An absorber is formed by bonding an upper layer made of a mixture of pulp fibers and water-absorbent resin particles and a lower layer made of a mixture of pulp fibers and water-absorbent resin particles to the top and bottom of the first nonwoven fabric of the intermediate layer with an adhesive.
- FIG. 1 is a front view of the disposable pants according to the present invention.
- FIG. 2 is a partially exploded developed plan view of the disposable pants shown in FIG.
- FIG. 3 is a sectional view showing an embodiment of the inner absorbing member.
- FIG. 4 is a plan view showing an applied state of the adhesive.
- FIG. 5 is a plan view of the absorber.
- FIG. 6 is a longitudinal sectional view of the disposable pants.
- FIG. 7 is a front view showing another embodiment of the present invention.
- FIG. 8 is a plan view showing an attached state of the leg elastic member.
- FIG. 9 is a perspective view showing the manufacturing method of the present invention.
- FIG. 10 is a plan view showing the manufacturing method of the present invention.
- the outer shape of the disposable pants 1 is formed by an outer sheet 2 and has a waist opening 3 at the top and a so-called pants shape having a pair of leg openings 4 and 4. ing.
- the front side and the back side of the pants 1 are joined by left and right joints 5.
- a plurality of thread-like elastic bodies are provided as elastic members.
- a plurality of thread-like elastic bodies parallel to the waist elastic member are attached as fitting elastic members 55 over the entire circumference of the pants.
- the presence of the elastic member for fitting 55 can enhance the adhesion of the pants 1 to the wearer's lower abdomen and buttocks.
- an inner absorbing member 6 is attached inside the pants 1, an inner absorbing member 6 is attached.
- An absorber 7 is housed inside the inner absorbing member 6, and absorbs excreted liquid such as urine and loose stool of the wearer.
- the lower end 55 e of the elastic member 55 for fitting is arranged such that the elastic member 55 for fitting and the absorber 7 are closer to the opening end 3 e for the waist than the edge 7 e in the longitudinal direction of the absorber 7. It is preferable to adjust the installation position. If the disposition positions of the two are overlapped, the elastic body 7 is relatively hard, so that the stretching force of the fitting elastic member may be hindered.
- the thickness of the lower abdomen and buttocks, which tend to swell after wearing the pants, is reduced.
- the pants can be worn inconspicuously.
- Fig. 2 shows a development of the disposable pants of Fig. 1.
- the pants 1 are substantially composed of the outer sheet 2 and the inner absorbing member 6.
- the inner absorbent member 6 is joined to the center of the outer sheet 2, and the joints 5a and 5a on both sides of the B section of the outer sheet 2 corresponding to the back of the pants and the outer sheet 2 corresponding to the front of the pants.
- the pants shape as shown in FIG. 1 is obtained.
- the outer sheet 2 is formed by the outermost nonwoven fabric 21 and the inner nonwoven fabric 22. In the example of FIG.
- the outermost nonwoven fabric 21 of the outer sheet 2 extends longer than the inner nonwoven fabric 22 at the waist edge 3 e, and the extended portion is located above the inner nonwoven fabric 2 2.
- a folded portion 21a is provided.
- the waist elastic member 53 is intermittently joined between the folded portion 21a and the inner nonwoven fabric 22 in an extended state.
- a fitting elastic member 55 and a leg elastic member 54 are also provided between the outermost nonwoven fabric 21 and the inner nonwoven fabric 22.
- the waist elastic member 53 may be provided between the outermost nonwoven fabric 21 and the inner nonwoven fabric 22.In this case, the folded portion 21a may or may not be provided. May be either.
- the outermost nonwoven fabric 21 and the inner nonwoven fabric 22 are preferably nonwoven fabrics made of cellulose, rayon, acetate, polyethylene, polypropylene, nylon, polyester, acrylic, etc. (hereinafter, these nonwoven fabrics are referred to as these nonwoven fabrics). Those which can be used favorably and which have been subjected to a water-repellent treatment may be used. For joining each elastic member to each nonwoven fabric, it is convenient to use a hot melt adhesive.
- the inner absorbing member 6 includes a lowermost liquid-impervious back sheet 61, an absorber 7 and a liquid-permeable topsheet 62 that comes into contact with the wearer's skin.
- the liquid-impervious backsheet 61 extends to the left and right of the absorber 7 as shown by the hatched portion 61a in FIG. A configuration in which the top sheet 62 is folded back on the upper surface may be employed. Urine can be prevented from leaking from both sides of the absorber 7.
- FIG. 3 shows a preferred embodiment of the inner absorbing member 6 in a cross-sectional view in the width direction.
- the absorber 7 in the inner absorbing member 6 essentially includes an upper layer 71, a lower layer 72, and an intermediate layer 73 made of a first nonwoven fabric.
- the upper layer 71 and the lower layer 72 are a mixture of pulp fibers and water-absorbent resin particles. It is preferable that the water-absorbent resin particles be about 10 to 65% by weight of the total weight of the absorber (total of the upper layer and the lower layer), because the excreted liquid can be rapidly absorbed.
- a second nonwoven fabric 75 is provided below the lower layer 72 above the liquid-impervious backsheet 61, and above the upper layer 71 below the top sheet 62. Is provided with thin paper 74. Thin paper 74 and upper layer 71, upper layer 71 and first nonwoven fabric 73, first nonwoven fabric 73 and lower layer 72, lower layer 72 and second nonwoven fabric are bonded with hot melt adhesive, etc. Constitutes the absorber 7.
- the upper layer 71 and the first non-woven fabric 73 and the first non-woven fabric 73 and the lower layer 72 are bonded by applying a hot melt adhesive to the first non-woven fabric 73. It is preferred to join them before the agents solidify. This is because the upper layer 71 and the lower layer 72 adhere to each other through the hot melt adhesive that has permeated in the thickness direction of the first nonwoven fabric. As described above, since the upper and lower layers of the absorber 7 of the present invention are firmly joined via the first nonwoven fabric, the first nonwoven fabric functions as a core material and has excellent shape retention. Further, the hot melt adhesive penetrates into the upper layer or the lower layer and joins the pulp fibers or the pulp fibers and the water-absorbent resin particles. This is also effective in improving the shape retention. Therefore, if the absorbent having the constitution of the present invention is used, it is not necessary to mix the fibers of the thermoplastic resin into the absorbent, and it is not necessary to heat-treat the absorbent.
- the second nonwoven fabric 75 is extended outward from the periphery of the lower layer 72.
- Thin paper and the second nonwoven fabric can be used as a material for wrapping the upper and lower layers in the line for manufacturing the upper and lower layers, respectively, so that pulp fibers and water-absorbent resin particles are prevented from dispersing into the work environment on the manufacturing line. It is also useful for
- the absorber 7 has an upper layer 71 having a substantially hourglass shape having constrictions 47, 47 on the left and right sides of the center in the longitudinal direction, and has a leg opening (reference numeral 4 in FIG. 1). Make sure that the elasticity of the leg elastic member 5 4 (Fig. 1) is not impaired.
- the lower layer 72 may have the same shape as the upper layer 71, but preferably has a rectangular shape slightly smaller in the width direction than the upper layer 71. Most of the excreted liquid is absorbed by the upper layer 71, so the lower layer 72 should be provided as an auxiliary absorption member when a large amount of urine needs to be absorbed, and should be smaller than the upper layer 71. You can do it.
- the swelling of the underpants of the crotch is reduced, so that the appearance becomes less conspicuous after wearing, and obstruction of the elasticity of the leg gathers can be prevented.
- Human leg usually with a leg Since the thigh portion near the base is thicker than the root itself, making the lower layer 72 smaller reduces the twisting and twisting of the absorber due to the wearer's movement (rubbing between the thighs), and The performance is improved.
- the absorbent body 7 having the above-described structure is appropriately joined between the liquid-impermeable back sheet 61 and the liquid-permeable top sheet 62.
- the top sheet 62 and the thin paper 74 or the upper layer 71 when no thin paper is provided
- they are bonded so as not to hinder the water permeability.
- the lower end of the rising gather 81 may be joined to the upper surface of the folded portion 61 a where the zock sheet 61 is folded on the upper surface of the top sheet 62.
- FIG. 6 is a longitudinal sectional view of the pants showing a preferred embodiment near the opening end for the waist.
- the outermost nonwoven fabric 21 is folded back toward the inner nonwoven fabric 22 at the opening end for the waist to form a folded portion 21a.
- a waist elastic member 53 is provided between the folded portion 21 a and the inner nonwoven fabric 22.
- the fitting elastic member 55 the lower end 55e of the fitting elastic member is located closer to the waist opening end (upper side in the figure) than the longitudinal edge 7e of the absorber 7 in the inner absorbing member 6. So that it is provided between the outermost nonwoven fabric 21 and the inner nonwoven fabric 22.
- a separate nonwoven fabric 23 is provided from the lower side of the folded portion 21 a to the upper end of the inner absorbing member 6.
- the non-woven fabric 23 is provided as needed. If a non-woven fabric made of hydrophobic fiber is used, or if it is made water-impermeable by performing a water-repellent treatment, urine will flow to a portion where the inner absorbent member 6 does not exist. Can be prevented from penetrating.
- the lower end 55 e of the elastic member 55 for the fit is located closer to the waist opening end than the longitudinal edge 7 e of the absorber 7 in the inner absorbing member 6.
- the example in which the disposition positions of the fitting elastic member and the absorber are adjusted so as not to overlap with each other is shown. However, the disposition positions of the fitting elastic member 55 and the absorber 7 are overlapped. Is also good.
- FIG. 7 shows an example of pants in which the inner absorbing member 6 and the absorber 7 are longer than those in FIG. Note that the same components as those shown in FIG. 1 are omitted in FIG.
- Elastic member for fitting 55 in FIG. 7 (a dozen or more elastic members for fitting are provided between the upper end 55 e and the lower end 55 e, but are omitted in the figure) and the absorber There is a portion where 7 overlaps (area X indicated by oblique lines). Since the absorber 7 is harder than the non-woven fabric, even if the elasticity of the fitting elastic member is applied to the region X, it does not improve the adhesion of the pants, and may cause the absorber 7 to deflect. is there.
- the fitting elastic member 55 is joined to the outer sheet 2 in a non-extended state.
- the elastic member 55 for a foot can be continuously attached without cutting it on a production line, and when worn as pants, the adverse effect on the absorber 7 is eliminated.
- the elasticity of the fitting may be different between the front side and the back side of the pants, regardless of whether they overlap the absorber or not. In the case of large-sized pants with many buttocks, the hips can be secured even if the stretching force on the back side is weaker than that on the front side, so that the buttocks can be prevented from being forcibly tightened.
- the extension force of the front side and the back side be the same for a small-sized pan. Further, it is also possible to arrange the positions (up and down positions) of the fitting elastic members differently between the front side and the rear side of the pants.
- FIG. 8 is an explanatory view showing an attached state of the leg elastic member 54 in the present invention.
- leg On the front side F of the disposable pants, the elastic member 54 for the left side 54 a of the left side in the figure along the periphery of the leg opening 4 of the pants and the right side portion 54 4 the right side in the figure A substantially U-shaped line composed of a connecting portion 54b connecting the tip portions of the side portions 54a and c is formed. The same applies to the back side B of the pants.
- the connecting portions 54b of the front and rear lines of the leg elastic member 54 do not intersect at the crotch part of the pant.
- leg elastic members 54 causes the inner absorbing member to squeeze out to the outside of the pants, resulting in poor appearance.
- the facing position of the connecting portion 54b of the front and rear U-shaped lines may be shifted to one of the front and rear of the pants.
- the distance between the thread-like elastic members constituting the leg elastic member 54 is the narrowest at the middle part between the upper end of the side part 54 a (or 54 c) and the center of the connecting part 54 b (S 2 ), the side part gradually widens toward the upper end (S ⁇ and the center part (S 3 ) of the connecting part.
- the elongation force of the thread-like elastic body is the side part 54 a (or 54 c). weakest in the middle portion between the upper end and the connecting portion 5 4 b in central part of, be additionally provided to gradually become stronger toward the side portion upper end (S and the connecting portion central portion to the (S 3) is preferable.
- the disposable pants according to the present invention have a pants shape as shown in FIG. 1 by overlapping and joining the joining margins 5a and 5b on both sides of the pants in the developed view of FIG.
- the joint structure on both sides of the pants is such that the outermost nonwoven fabric 2 1, the inner nonwoven fabric 2 2, and the folded portion 2 1 a in the portion where the folded portion 21 a of the outermost nonwoven fabric 21 exists Structure where two outer sheets are laminated.
- the part without the folded part 21 (the crotch side) is composed of the outermost nonwoven fabric 21 and the inner nonwoven fabric 22. Structure.
- the pants having the structure shown in FIG.
- the outer sheet since the outer sheet has a portion in which the nonwoven fabric 23 is further laminated in addition to the folded portion 21a, the outer sheet in which these are laminated is provided. They will be joined together.
- the joint allowance for the both sides of the pants can be easily achieved by using a heat sealing machine or an ultrasonic welding machine. If the bonding strength is insufficient, other thermoplastic film, non-woven fabric, adhesive net, adhesive, etc. may be added between any of the layers to increase the bonding strength. .
- most of the disposable pants of the present invention are formed only of the outer sheet made of nonwoven fabric, and the liquid-impermeable sheet causing stuffiness is located at the position where the inner absorbent member is disposed. Since they only exist, they have very good ventilation.
- a step of attaching a waist elastic member, a leg elastic member, and a fitting elastic member to a continuous outer sheet is performed.
- the continuum 1 2 1 of the outermost nonwoven fabric 2 1, the waist elastic member 53, the leg elastic member 54, and the fitting elastic member 55, and the respective continuum and 1 53, 1 54 And 1 5 5 are attached.
- a hot-melt adhesive is sprayed on the outermost nonwoven fabric continuum 121 and / or the continuum of each elastic member (153-155) to form a continuum of these elastic members.
- the inner absorbent member 6 manufactured in a separate process is joined to the outer sheet continuous body 12.
- the inner absorbent member 6 includes an upper layer composed of a mixture of pulp fibers and water-absorbent resin particles, and a lower layer composed of a mixture of pulp fibers and water-absorbent resin particles.
- the outer sheet continuous body 12 is placed with the inner absorbent member 6 inside.
- Folding process joining both sides of the pants P i at the joining line AL, cutting at the cutting line CL 2 to provide a cutout for the leg opening, cutting line CL!
- the process of separating into individual pants P and P 2 is sequentially performed. Either of the steps of joining the both sides of the pants and the step of providing the cutout for the leg opening may be performed first. Cuts for the leg openings can also be made prior to the outer sheet continuation fold process.
- the manufacturing of the inner absorbing member can be performed at a high speed, and the direction in which each elastic member is added coincides with the running direction of the outer sheet.
- the manufacturing method of the present invention when manufacturing pants having different sizes, it is not necessary to prepare a manufacturing machine for each size. As shown in FIG. 10, when manufacturing the pant P 2 of pants P i and small size W 2 of the waist large size ⁇ i on the same manufacturing line, the cutting line C 1 ⁇ and the bonding lines AL in FIG.
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69838982T DE69838982T2 (de) | 1998-05-29 | 1998-05-29 | Wegwerfunterhose und verfahren zu ihrer kontinuierlichen herstellung |
CNB988075784A CN1270681C (zh) | 1998-05-29 | 1998-05-29 | 一次性穿用短裤及其制造方法 |
ES98923059T ES2299207T3 (es) | 1998-05-29 | 1998-05-29 | Braga desechable y metodo para fabricar la misma de manera continua. |
EP98923059A EP1013251B1 (en) | 1998-05-29 | 1998-05-29 | Disposable underpants and method of continuously manufacturing the same |
PCT/JP1998/002402 WO1999062447A1 (fr) | 1998-05-29 | 1998-05-29 | Culotte jetable et procede permettant de la produire en continu |
US09/490,289 US6369291B1 (en) | 1998-05-29 | 2000-01-20 | Disposable underpants and method of continuously producing the same |
US09/997,690 US20020035355A1 (en) | 1998-05-29 | 2001-11-29 | Disposable underpants and method of continuously producing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP1998/002402 WO1999062447A1 (fr) | 1998-05-29 | 1998-05-29 | Culotte jetable et procede permettant de la produire en continu |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/490,289 Continuation US6369291B1 (en) | 1998-05-29 | 2000-01-20 | Disposable underpants and method of continuously producing the same |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999062447A1 true WO1999062447A1 (fr) | 1999-12-09 |
Family
ID=14208324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1998/002402 WO1999062447A1 (fr) | 1998-05-29 | 1998-05-29 | Culotte jetable et procede permettant de la produire en continu |
Country Status (6)
Country | Link |
---|---|
US (2) | US6369291B1 (ja) |
EP (1) | EP1013251B1 (ja) |
CN (1) | CN1270681C (ja) |
DE (1) | DE69838982T2 (ja) |
ES (1) | ES2299207T3 (ja) |
WO (1) | WO1999062447A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102985040A (zh) * | 2010-07-14 | 2013-03-20 | 利卫多株式会社 | 一次性尿布 |
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CN102985040A (zh) * | 2010-07-14 | 2013-03-20 | 利卫多株式会社 | 一次性尿布 |
CN102985040B (zh) * | 2010-07-14 | 2014-09-24 | 利卫多株式会社 | 一次性尿布 |
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Also Published As
Publication number | Publication date |
---|---|
CN1270681C (zh) | 2006-08-23 |
US20020035355A1 (en) | 2002-03-21 |
DE69838982T2 (de) | 2008-12-24 |
DE69838982D1 (de) | 2008-02-21 |
EP1013251A1 (en) | 2000-06-28 |
CN1265017A (zh) | 2000-08-30 |
US6369291B1 (en) | 2002-04-09 |
EP1013251B1 (en) | 2008-01-09 |
EP1013251A4 (en) | 2004-11-10 |
ES2299207T3 (es) | 2008-05-16 |
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