EP0641531A1 - Synthetic bristles and method for their manufacture - Google Patents
Synthetic bristles and method for their manufacture Download PDFInfo
- Publication number
- EP0641531A1 EP0641531A1 EP94113664A EP94113664A EP0641531A1 EP 0641531 A1 EP0641531 A1 EP 0641531A1 EP 94113664 A EP94113664 A EP 94113664A EP 94113664 A EP94113664 A EP 94113664A EP 0641531 A1 EP0641531 A1 EP 0641531A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fibers
- plastic
- fibres
- plastic material
- reinforcing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 6
- 239000004033 plastic Substances 0.000 claims abstract description 51
- 229920003023 plastic Polymers 0.000 claims abstract description 51
- 239000000835 fiber Substances 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 21
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 7
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 7
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 7
- -1 polyethylene Polymers 0.000 claims abstract description 6
- 239000004698 Polyethylene Substances 0.000 claims abstract description 5
- 239000003365 glass fiber Substances 0.000 claims abstract description 5
- 229920000573 polyethylene Polymers 0.000 claims abstract description 5
- 239000012783 reinforcing fiber Substances 0.000 claims description 29
- 238000001125 extrusion Methods 0.000 claims description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000004760 aramid Substances 0.000 claims description 4
- 229920006231 aramid fiber Polymers 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- 239000012815 thermoplastic material Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 1
- 238000001723 curing Methods 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract 3
- 241000531908 Aramides Species 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229920003235 aromatic polyamide Polymers 0.000 abstract 1
- 238000005452 bending Methods 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 230000003763 resistance to breakage Effects 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 229920000426 Microplastic Polymers 0.000 description 1
- 241001417527 Pempheridae Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011086 high cleaning Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
- B24D13/10—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising assemblies of brushes
Definitions
- the invention relates to plastic bristles made of a thermoplastic or thermosetting plastic material and a method for their production.
- plastic bristles do not have sufficient abrasion and breakage resistance to ensure a sufficiently long service life in industrial use.
- the invention has for its object to provide plastic bristles with increased rigidity and strength and to provide a method with which the plastic bristles can be produced in a simple manner.
- reinforcing fibers are embedded in the plastic material.
- the reinforcing fibers which are preferably formed from glass fibers, aramid fibers, carbon fibers or high-strength polyethylene fibers, bring about a substantial increase in the flexural strength, the abrasion resistance and the breaking strength of the plastic bristles, so that a high cleaning, grinding and polishing effect is achieved over a long service life can be.
- the reinforcing fibers can be embedded in the plastic material as so-called short fibers with a length in the range of approximately 0.2 to 0.4 mm or as so-called long fibers with a length in the range of approximately 5 to 15 mm.
- a thermoplastic material is preferably used, which is extruded together with the reinforcing fibers.
- the reinforcing fibers can either be incorporated beforehand into the plastic granules to be melted during extrusion, but it is preferably provided that the reinforcing fibers are introduced as short fibers directly into the melt of the thermoplastic material during the extrusion process.
- reinforcing fibers in the form of at least one continuous fiber bundle can also be provided.
- a fiber bundle consisting of a large number of individual filaments can also consist of glass fibers, aramid fibers, carbon fibers or high-strength polyethylene fibers.
- the plastic material matrix
- the bristle strand thus produced can then be designed by shaping the profile, for example to form a round, rectangular, star or another desired cross-sectional profile.
- the plastic bristles with integrated reinforcing fiber bundles can be manufactured using the pultrusion or extrusion process. With this procedure the reinforcing fiber bundle is passed through a special extrusion tool and is thereby penetrated or surrounded by a plastic melt, preferably a thermoplastic, supplied via an extruder. Alternatively, it is also possible to pass the reinforcing fiber bundle through a bath of a liquid plastic material, preferably a thermoset, whereby it is impregnated. The bristle strand is then shaped or calibrated, cured and cooled in the manner described above.
- the reinforcing fiber bundle can be arranged in a special way. When using a single reinforcing fiber bundle, this expediently runs in the central axis of the plastic bristle. If several reinforcing fiber bundles are used in a plastic bristle, these can be arranged distributed around the central axis, a reinforcing fiber bundle optionally running in the central axis.
- the mechanical strength and stiffness of the plastic bristles can be varied via the number of bundles and their arrangement.
- FIG. 1 shows a detail of a plastic bristle 10 made of a thermoplastic or thermosetting plastic material 11, in which a multiplicity of short fibers 12 with a length in the range of approximately 0.2 to 0.4 mm are embedded. As FIG. 1 shows, the short fibers 12 are not aligned, but are evenly distributed statistically over the volume of the plastic bristles 10.
- Figure 2 shows a corresponding representation of a plastic bristle 20, in the plastic material 21 long fibers 22 are embedded with a length of about 5 to 15 mm.
- the long fibers 22 are undirected in the plastic material 21 arranged and approximately statistically evenly distributed in this.
- the section of a plastic bristle 30 shown in FIG. 3 shows a reinforcing fiber bundle 32, which consists of a large number of individual filaments and runs essentially along the longitudinal axis of the plastic bristle 30.
- the reinforcing fiber bundle 32 is completely embedded in a plastic material 31.
- several bundles can also be arranged in the plastic bristle, as shown in FIG. 4.
- three fiber bundles 42 are provided, one of which runs essentially along the longitudinal axis of the plastic bristle 40, while the other two are aligned parallel to it. All reinforcing fiber bundles 42 are completely embedded in the plastic material 41, with short fibers 43 also being arranged therein.
- the fibers or fiber bundles preferably consist of glass fibers, aramid fibers, carbon fibers or high-strength polyethylene fibers.
Abstract
Description
Die Erfindung betrifft Kunststoffborsten aus einem thermoplastischen oder duroplastischen Kunststoffmaterial sowie ein Verfahren zu ihrer Herstellung.The invention relates to plastic bristles made of a thermoplastic or thermosetting plastic material and a method for their production.
Im Zusammenhang mit der industriellen Nutzung von Bürsten beispielsweise zum Kehren, Reinigen, Schleifen oder Polieren finden üblicherweise sogenannte technische Bürsten Verwendung, die einen mit Drahtborsten bestückten Bürstenträger aufweisen. Diese Drahtborsten sind in gewisser Hinsicht nachteilig, da sie beispielsweise beim Kehren bzw. Reinigen bestimmte Oberflächen beschädigen, bei starker Beanspruchung abbrechen, ein starkes Geräusch entwickeln und sehr schwer sind. Ein Beispiel dafür sind Straßenkehrmaschinen mit rotierenden Drahtbürsten, die die Oberfläche von Bordsteinen und Straßenbelägen zerkratzen und/oder Versiegelungen beschädigen, die dadurch anfälliger sind für Oberflächenwasser, Frost, Öle usw., früher unansehnlich werden und einem größeren Verschleiß unterliegen.In connection with the industrial use of brushes, for example for sweeping, cleaning, grinding or polishing, so-called technical brushes are usually used which have a brush holder equipped with wire bristles. These wire bristles are somewhat disadvantageous because they damage certain surfaces, for example when sweeping or cleaning, break off under heavy use, make a strong noise and are very heavy. An example of this are street sweepers with rotating wire brushes that scratch the surface of curbs and road surfaces and / or damage seals, which are therefore more susceptible to surface water, frost, oils, etc., become unsightly in the past and are subject to greater wear.
Da die Herstellung von Bürsten mit Drahtborsten - und wegen des hohen Gewichts der Drahtborsten auch die der Aufhängung der Bürstenkörper - außerdem relativ aufwendig und teuer ist, wurde versucht, Kunststoffborsten zu verwenden, da sich diese schnell und kostengünstig herstellen und verarbeiten lassen.Since the production of brushes with wire bristles - and because of the high weight of the wire bristles also the suspension of the brush body - is also relatively complex and expensive, attempts have been made to use plastic bristles, since these can be produced and processed quickly and inexpensively.
Es hat sich jedoch gezeigt, daß Kunststoffborsten unabhängig davon, aus welchem Kunststoffmaterial sie bestehen, keine ausreichende Abrieb- und Bruchfestigkeit besitzen, um bei industrieller Verwendung eine ausreichend lange Standzeit zu gewährleisten.However, it has been shown that, regardless of the plastic material they are made of, plastic bristles do not have sufficient abrasion and breakage resistance to ensure a sufficiently long service life in industrial use.
Außerdem ist es speziell bei den hier zum Einsatz kommenden größeren Borstenlängen mit reinen Kunststoffen nicht möglich, eine ausreichende Biegesteifigkeit zu erreichen.In addition, especially with the larger bristle lengths used here with pure plastics, it is not possible to achieve sufficient flexural rigidity.
Der Erfindung liegt die Aufgabe zugrunde, Kunststoffborsten mit erhöhter Steifigkeit und Festigkeit zu schaffen sowie ein Verfahren vorzusehen, mit dem die Kunststoffborsten in einfacher Weise herstellbar sind.The invention has for its object to provide plastic bristles with increased rigidity and strength and to provide a method with which the plastic bristles can be produced in a simple manner.
Diese Aufgabe wird erfindungsgemäß hinsichtlich der Kunststoffborsten dadurch gelöst, daß in das Kunststoffmaterial Verstärkungsfasern eingebettet sind. Die Verstärkungsfasern, die vorzugsweise von Glasfasern, Aramidfasern, Kohlenstoff-Fasern oder hochfesten Polyethylenfasern gebildet sind, bewirken eine wesentliche Erhöhung der Biegesteifigkeit, der Abriebfestigkeit und der Bruchfestigkeit der Kunststoffborsten, so daß über eine lange Gebrauchsdauer eine hohe Reinigungs-, Schleif- und Polierwirkung erzielt werden kann.This object is achieved with respect to the plastic bristles in that reinforcing fibers are embedded in the plastic material. The reinforcing fibers, which are preferably formed from glass fibers, aramid fibers, carbon fibers or high-strength polyethylene fibers, bring about a substantial increase in the flexural strength, the abrasion resistance and the breaking strength of the plastic bristles, so that a high cleaning, grinding and polishing effect is achieved over a long service life can be.
Die Verstärkungsfasern können als sogenannte Kurzfasern mit einer Länge im Bereich von etwa 0,2 bis 0,4 mm oder als sogenannte Langfasern mit einer Länge im Bereich von etwa 5 bis 15 mm in das Kunststoffmaterial eingebettet werden. Im Zusammenwirken mit Kurz- oder Langfasern findet vorzugsweise ein thermoplastisches Kunststoffmaterial Verwendung, das zusammen mit den Verstärkungsfasern extrudiert wird. Die Verstärkungsfasern können dabei entweder vorher in das beim Extrudieren aufzuschmelzende Kunststoffgranulat eingearbeitet werden, vorzugsweise ist jedoch vorgesehen, daß die Verstärkungsfasern als Kurzfasern während des Extrusionsvorgangs direkt in die Schmelze des thermoplastischen Kunststoffmaterials eingebracht werden.The reinforcing fibers can be embedded in the plastic material as so-called short fibers with a length in the range of approximately 0.2 to 0.4 mm or as so-called long fibers with a length in the range of approximately 5 to 15 mm. In cooperation with short or long fibers, a thermoplastic material is preferably used, which is extruded together with the reinforcing fibers. The reinforcing fibers can either be incorporated beforehand into the plastic granules to be melted during extrusion, but it is preferably provided that the reinforcing fibers are introduced as short fibers directly into the melt of the thermoplastic material during the extrusion process.
Alternativ oder zusätzlich zu den Kurz- bzw. Langfasern können auch Verstärkungsfasern in Form zumindest eines Endlosfaserbündels vorgesehen sein. Ein Faserbündel, das aus einer Vielzahl von Einzelfilamenten besteht, kann ebenfalls aus Glasfasern, Aramidfasern, Kohlenstoff-Fasern oder hochfesten Polyethylenfasern bestehen. Nach Vorfertigung des Bündels wird dieses mit dem Kunststoffmaterial (Matrix), das sowohl ein Thermoplast als auch ein Duroplast sein kann, derart umgeben, daß es vollständig in dieses eingebettet ist. Anschließend kann der so hergestellte Borstenstrang durch Formung des Profils, beispielsweise zu einem Rund-, Rechteck-, Stern- oder einem anderen gewünschten Querschnittsprofil ausgestaltet werden.As an alternative or in addition to the short or long fibers, reinforcing fibers in the form of at least one continuous fiber bundle can also be provided. A fiber bundle consisting of a large number of individual filaments can also consist of glass fibers, aramid fibers, carbon fibers or high-strength polyethylene fibers. After the bundle has been prefabricated, it is surrounded with the plastic material (matrix), which can be both a thermoplastic and a thermoset, in such a way that it is completely embedded in it. The bristle strand thus produced can then be designed by shaping the profile, for example to form a round, rectangular, star or another desired cross-sectional profile.
Die Kunststoffborsten mit eingearbeiteten endlosen Verstärkungsfaserbündeln können im Pultrusions- oder Extrusionsverfahren hergestellt werden. Bei diesem Verfahren wird das Verstärkungsfaserbündel durch ein spezielles Extrusionswerkzeug geführt und dabei mit einer über einen Extruder zugeführten Kunststoffschmelze, vorzugsweise ein Thermoplast, durchdrängt bzw. umgeben. Alternativ ist es auch möglich, das Verstärkungsfaserbündel durch ein Bad eines flüssigen Kunststoffmaterials, vorzugsweise eines Duroplast hindurchzuführen, wodurch es imprägniert wird. Anschließend wird der Borstenstrang in o.g. Weise geformt bzw. kalibriert, ausgehärtet und abgekühlt.The plastic bristles with integrated reinforcing fiber bundles can be manufactured using the pultrusion or extrusion process. With this procedure the reinforcing fiber bundle is passed through a special extrusion tool and is thereby penetrated or surrounded by a plastic melt, preferably a thermoplastic, supplied via an extruder. Alternatively, it is also possible to pass the reinforcing fiber bundle through a bath of a liquid plastic material, preferably a thermoset, whereby it is impregnated. The bristle strand is then shaped or calibrated, cured and cooled in the manner described above.
Während die Kurz- und Langfasern in dem Kunststoffmaterial der Kunststoffborsten ohne bestimmtes Raster, jedoch statistisch gleichverteilt angeordnet sind, kann das Verstärkungsfaserbündel in spezieller Weise angeordnet werden. Bei Verwendung eines einzigen Verstärkungsfaserbündels verläuft dies zweckmäßigerweise in der Mittelachse der Kunststoffborste. Bei Verwendung mehrerer Verstärkungsfaserbündel in einer Kunststoffborste können diese um die Mittelachse herum verteilt angeordnet werden, wobei gegebenenfalls in der Mittelachse ein Verstärkungsfaserbündel verläuft. Über die Anzahl der Bündel sowie deren Anordnung lassen sich die mechanischen Festigkeiten und Steifigkeiten der Kunststoffborste variieren.While the short and long fibers are arranged in the plastic material of the plastic bristles without a specific grid, but statistically evenly distributed, the reinforcing fiber bundle can be arranged in a special way. When using a single reinforcing fiber bundle, this expediently runs in the central axis of the plastic bristle. If several reinforcing fiber bundles are used in a plastic bristle, these can be arranged distributed around the central axis, a reinforcing fiber bundle optionally running in the central axis. The mechanical strength and stiffness of the plastic bristles can be varied via the number of bundles and their arrangement.
Des weiteren ist es möglich, in das Kunststoffmaterial, in das das Verstärkungsfaserbündel eingebettet ist, zusätzliche Kurzfasern als weitere Verstärkung einzubetten, was vorzugsweise dadurch erreicht wird, daß die Kurzfasern in die Kunststoffschmelze des Extruders eingebracht werden.Furthermore, it is possible to embed additional short fibers as further reinforcement in the plastic material in which the reinforcing fiber bundle is embedded, which is preferably achieved by introducing the short fibers into the plastic melt of the extruder.
Weitere Einzelheiten und Merkmale der Erfindung sind aus der folgenden Beschreibung einiger Ausführungsbeispiele unter Bezugnahme auf die Zeichnung ersichtlich. Es zeigen:
- Figur 1
- einen Ausschnitt einer Kunststoffborste mit Kurzfasern,
- Figur 2
- einen Ausschnitt einer Kunststoffborste mit Langfasern,
Figur 3- einen Ausschnitt einer Kunststoffborste mit einem Verstärkungsfaserbündel und
- Figur 4
- einen Ausschnitt einer Kunststoffborste mit Verstärkungsfaserbündeln und zusätzlichen Kurzfasern.
- Figure 1
- a section of a plastic bristle with short fibers,
- Figure 2
- a section of a plastic bristle with long fibers,
- Figure 3
- a section of a plastic bristle with a reinforcing fiber bundle and
- Figure 4
- a section of a plastic bristle with reinforcing fiber bundles and additional short fibers.
Figur 1 zeigt eine ausschnittsweise Darstellung einer Kunststoffborste 10 aus einem thermoplastischen oder duroplastischen Kunststoffmaterial 11, in das eine Vielzahl von Kurzfasern 12 mit einer Länge im Bereich von etwa 0,2 bis 0,4 mm eingebettet ist. Wie Figur 1 zeigt, sind die Kurzfasern 12 nicht ausgerichtet, sondern statistisch über das Volumen der Kunststoffborste 10 gleichverteilt.FIG. 1 shows a detail of a
Figur 2 zeigt eine entsprechende Darstellung einer Kunststoffborste 20, in deren Kunststoffmaterial 21 Langfasern 22 mit einer Länge von etwa 5 bis 15 mm eingebettet sind. Die Langfasern 22 sind ungerichtet in dem Kunststoffmaterial 21 angeordnet und annähernd statistisch in diesem gleichverteilt.Figure 2 shows a corresponding representation of a
Der in Figur 3 gezeigte Ausschnitt einer Kunststoffborste 30 zeigt ein Verstärkungsfaserbündel 32, das aus einer Vielzahl von Einzelfilamenten besteht und im wesentlichen entlang der Längsachse der Kunststoffborste 30 verläuft. Das Verstärkungsfaserbündel 32 ist in ein Kunststoffmaterial 31 vollständig eingebettet. Statt nur eines Verstärkungsfaserbündels können auch in der Kunststoffborste mehrere Bündel angeordnet sein, wie in Figur 4 dargestellt ist. In diesem Ausführungsbeispiel sind drei Faserbündel 42 vorgesehen, von denen eines im wesentlichen entlang der Längsachse der Kunststoffborste 40 verläuft, während die beiden anderen parallel dazu ausgerichtet sind. Sämtliche Verstärkungsfaserbündel 42 sind in das Kunststoffmaterial 41 vollständig eingebettet, wobei in diesem darüber hinaus Kurzfasern 43 angeordnet sind.The section of a
In allen genannten Ausführungsbeispielen bestehen die Fasern bzw. Faserbündel vorzugsweise aus Glasfasern, Aramidfasern, Kohlenstoff-Fasern oder hochfesten Polyethylenfasern.In all of the exemplary embodiments mentioned, the fibers or fiber bundles preferably consist of glass fibers, aramid fibers, carbon fibers or high-strength polyethylene fibers.
Claims (10)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4329895 | 1993-09-04 | ||
| DE4329895A DE4329895A1 (en) | 1993-09-04 | 1993-09-04 | Plastic bristles and processes for their manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0641531A1 true EP0641531A1 (en) | 1995-03-08 |
Family
ID=6496825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94113664A Withdrawn EP0641531A1 (en) | 1993-09-04 | 1994-09-01 | Synthetic bristles and method for their manufacture |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5540873A (en) |
| EP (1) | EP0641531A1 (en) |
| DE (1) | DE4329895A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19534368A1 (en) * | 1995-09-15 | 1997-03-20 | Pedex & Co Gmbh | Bristles with a surface structure and process for their manufacture |
| US20040112400A1 (en) | 2002-12-16 | 2004-06-17 | Avon Products, Inc. | Applicator brush with improved bristles |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3577839A (en) * | 1968-06-27 | 1971-05-11 | Sherwin Williams Co | Brush and brush material |
| JPH01262806A (en) * | 1988-04-14 | 1989-10-19 | Nippon Steel Corp | Brush bristle material |
| EP0513798A2 (en) * | 1991-05-15 | 1992-11-19 | Sumitomo Chemical Company Limited | Abrasive brush |
| JPH04367613A (en) * | 1991-06-14 | 1992-12-18 | Sumitomo Chem Co Ltd | Polishing and grinding brush |
| JPH0655460A (en) * | 1992-08-10 | 1994-03-01 | Sumitomo Chem Co Ltd | Polishing and grinding brush and its manufacture |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3369057A (en) * | 1964-05-18 | 1968-02-13 | Allied Chem | Polyamide-polyester dispersions wherein the polyamide is less than 40% amine terminated |
| US4093693A (en) * | 1969-08-11 | 1978-06-06 | Lemelson Jerome H | Method for making composite articles |
| GB1435084A (en) * | 1972-08-18 | 1976-05-12 | Leng Armac Ltd | Brush |
| US3996404A (en) * | 1974-07-30 | 1976-12-07 | Japan Vilene Company Ltd. | Conjugate polycarbonate fibers and fibrous sheets made thereof |
| FR2499602A1 (en) * | 1981-02-10 | 1982-08-13 | Ouest Vendee Balais Sa | FIBER FOR BRUSHES OR BRUSHES, IN PARTICULAR OF SHUTTER |
| SU954398A1 (en) * | 1981-04-21 | 1982-08-30 | Московский авиационный технологический институт им.К.Э.Циолковского | Method for making reinforced productz from thermoplaztz |
| DE3400941A1 (en) * | 1983-01-14 | 1984-10-11 | Coronet - Werke Heinrich Schlerf Gmbh, 6948 Wald-Michelbach | Plastic bristle |
| EP0393536B1 (en) * | 1989-04-17 | 1996-02-07 | Teijin Limited | Fiber-reinforced polymeric resin composite material and process for producing same |
| US5329730A (en) * | 1989-09-20 | 1994-07-19 | Jason, Inc. | Abrasive finishing tool |
| DE3937333A1 (en) * | 1989-11-09 | 1991-05-16 | Bayer Ag | MIXTURES OF POLYARYL SULFIDES, GLASS FIBERS AND SILANES CONTAINING NITROGROUPS |
| DE4009179A1 (en) * | 1990-03-22 | 1991-09-26 | Bayer Ag | MIXTURES OF POLYARYL SULFIDES, EPOXIES, ACID ANHYDRIDES, GLASS FIBERS AND IF ANY OTHER FILLERS |
| DE4137970A1 (en) * | 1991-11-19 | 1993-05-27 | Feldmuehle Ag Stora | Doctor blades, esp. for high-speed paper coating - made of polyamide 6 or 66 reinforced with fibre of higher thermal conductivity, esp. carbon@ fibre |
| DE4138574A1 (en) * | 1991-11-23 | 1993-05-27 | Basf Ag | THERMOPLASTIC MOLDING MATERIALS BASED ON THERMOPLASTIC POLYESTERS AND METHYLMETHACRYLATE POLYMERISATS |
| DE4138572A1 (en) * | 1991-11-23 | 1993-05-27 | Basf Ag | Fibre-reinforced thermoplastic moulding compsn. - contg. polyester and imidised polymer, used for making fibre, film or moulding with good surface quality |
-
1993
- 1993-09-04 DE DE4329895A patent/DE4329895A1/en not_active Withdrawn
-
1994
- 1994-09-01 EP EP94113664A patent/EP0641531A1/en not_active Withdrawn
- 1994-09-06 US US08/301,004 patent/US5540873A/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3577839A (en) * | 1968-06-27 | 1971-05-11 | Sherwin Williams Co | Brush and brush material |
| JPH01262806A (en) * | 1988-04-14 | 1989-10-19 | Nippon Steel Corp | Brush bristle material |
| EP0513798A2 (en) * | 1991-05-15 | 1992-11-19 | Sumitomo Chemical Company Limited | Abrasive brush |
| JPH04367613A (en) * | 1991-06-14 | 1992-12-18 | Sumitomo Chem Co Ltd | Polishing and grinding brush |
| JPH0655460A (en) * | 1992-08-10 | 1994-03-01 | Sumitomo Chem Co Ltd | Polishing and grinding brush and its manufacture |
Non-Patent Citations (3)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 14, no. 20 (C - 676) 17 January 1989 (1989-01-17) * |
| PATENT ABSTRACTS OF JAPAN vol. 17, no. 236 (C - 1057) 13 May 1993 (1993-05-13) * |
| PATENT ABSTRACTS OF JAPAN vol. 18, no. 289 (M - 1614) 2 June 1994 (1994-06-02) * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4329895A1 (en) | 1995-03-09 |
| US5540873A (en) | 1996-07-30 |
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