EP1292782A2 - Improvement of noise behavior of non-asbestos friction materials through use of fluoropolymers - Google Patents
Improvement of noise behavior of non-asbestos friction materials through use of fluoropolymersInfo
- Publication number
- EP1292782A2 EP1292782A2 EP01946462A EP01946462A EP1292782A2 EP 1292782 A2 EP1292782 A2 EP 1292782A2 EP 01946462 A EP01946462 A EP 01946462A EP 01946462 A EP01946462 A EP 01946462A EP 1292782 A2 EP1292782 A2 EP 1292782A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- friction material
- material matrix
- fluoropolymer
- friction
- present
- 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- Withdrawn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
- 239000002783 friction material Substances 0.000 title claims abstract description 50
- 229920002313 fluoropolymer Polymers 0.000 title claims abstract description 36
- 239000004811 fluoropolymer Substances 0.000 title claims abstract description 36
- 239000010425 asbestos Substances 0.000 title description 6
- 229910052895 riebeckite Inorganic materials 0.000 title description 6
- 230000006872 improvement Effects 0.000 title description 2
- 239000011159 matrix material Substances 0.000 claims abstract description 27
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 18
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 18
- 239000004812 Fluorinated ethylene propylene Substances 0.000 claims abstract description 15
- 229920009441 perflouroethylene propylene Polymers 0.000 claims abstract description 15
- 239000002033 PVDF binder Substances 0.000 claims abstract description 11
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims description 10
- 239000011230 binding agent Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims description 5
- 239000011256 inorganic filler Substances 0.000 claims description 5
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 5
- 239000000314 lubricant Substances 0.000 claims description 5
- 239000012766 organic filler Substances 0.000 claims description 5
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000012783 reinforcing fiber Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 16
- 239000000203 mixture Substances 0.000 description 16
- 238000009472 formulation Methods 0.000 description 11
- 229920000642 polymer Polymers 0.000 description 8
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- 239000011737 fluorine Substances 0.000 description 6
- 229910052731 fluorine Inorganic materials 0.000 description 6
- 229910001018 Cast iron Inorganic materials 0.000 description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 239000004809 Teflon Substances 0.000 description 5
- 229920006362 Teflon® Polymers 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920001568 phenolic resin Polymers 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229920006360 Hostaflon Polymers 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 125000001153 fluoro group Chemical group F* 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920002620 polyvinyl fluoride Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 125000005739 1,1,2,2-tetrafluoroethanediyl group Chemical group FC(F)([*:1])C(F)(F)[*:2] 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 244000226021 Anacardium occidentale Species 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229920006358 Fluon Polymers 0.000 description 1
- 229920004449 Halon® Polymers 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229920006370 Kynar Polymers 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 229920006361 Polyflon Polymers 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 235000020226 cashew nut Nutrition 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000007580 dry-mixing Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000010420 shell particle Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
- F16D69/025—Compositions based on an organic binder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
- F16D69/025—Compositions based on an organic binder
- F16D69/026—Compositions based on an organic binder containing fibres
Definitions
- the present invention relates generally to friction materials, and more particularly, to friction materials containing at least one fluoropolymer for use in friction linings for applications such as, but not limited to brake disk
- Friction materials such as those typically employed in brake linings, are usually comprised of either asbestos fibers, mixtures of asbestos fibers and other heat resistant inorganic or organic fibers, asbestos-free mixtures of heat resistant inorganic or organic fibers, or metal powders such as iron powder, copper powder, steel powder or mixtures thereof, in combination with an organic monomeric or polymeric binder system (e.g., phenolic or cresylic resin).
- an organic monomeric or polymeric binder system e.g., phenolic or cresylic resin
- a typical friction material formulation may optionally contain one or more of the following components: thermosetting resinous binders (e.g., phenolic resins such as phenol-formaldehyde resins, epoxies, and the like) present in conventional amounts; reinforcing fibers (e.g., aramid, steel, acrylic, and the like) present in conventional amounts; metal powders (e.g., iron, copper, brass, zinc, aluminum, antimony, and the like) present in conventional amounts; solid lubricants (e.g., molybdenum disulfide, graphite, coke, stannic
- abrasives e.g., tin oxide, magnesia, silica, iron oxide, alumina, rutile, and the like
- organic fillers e.g., rubber particles
- cashew nut shell particles, nitrile rubber particles, and the like present in conventional amounts; and inorganic fillers (e.g., barytes, gypsum, mica, and
- friction materials are used in automotive brakes to slow (i.e., decelerate) and stop vehicles, by substantially converting kinetic
- the formed friction materials run against the cast iron mating surfaces of brake rotors or drums, depending on the
- Friction materials are typically comprised of thermoset composites containing several different materials, as previously
- Transfer film formation is a dynamic process, i.e., the film is continuously generated and destroyed during brake use.
- a friction material matrix comprises at least one fluoropolymer and at least one binder system.
- a friction material matrix comprises at least one fluoropolymer present in an amount up to about 2 weight percent based on the total weight of the friction material matrix, and at least one binder system.
- a friction material matrix comprises at least one fluoropolymer
- fluorinated ethylene propylene selected from the group consisting of fluorinated ethylene propylene, polyvinylidene fluoride, polytetrafluoroethylene, and combinations thereof, and at least one binder system.
- Figure 1 is a graphical illustration of the results of a dynamometer test of the noise behavior characteristics of a pair of brake pads having a
- Figure 2 is a graphical illustration of the results of a dynamometer test of the noise behavior characteristics of a pair of brake pads having a
- the present invention proposes the use of fluoropolymers in
- “friction material matrix” means at least one binder system (e.g., phenolic resin), and optionally, additives such
- reinforcing fibers as, but not limited to, reinforcing fibers, metal powders, abrasives, lubricants, organic fillers, inorganic fillers, and the like.
- fluoropolymer means at least one polymeric material containing fluorine. Fluoropolymers are composed basically of linear polymers in which some of or all the hydrogen atoms are replaced with fluorine, and they
- fluoropolymers rank among the best of the plastics in chemical
- fluoropolymers In order of decreasing fluorine replacement of hydrogen, they are fluorocarbons, chlorotrifluoroethylene, and fluorohydrocarbons.
- PTFE fluorinated ethylene propylene
- CF 2 CF 2 ) n is made by polymerizing the tetrafluoroethylene (TFE) monomer.
- TFE tetrafluoroethylene
- the white-to-translucent solid polymer has an extremely high molecular weight, i.e., in the 10 6 -10 7 range, and, consequently, has a viscosity of about 10 GPa»s (10 11 P) at 380°C.
- Its high thermal stability results from the strong carbon-fluorine bond and characterizes PTFE as a very useful high temperature polymer.
- Its heat resistance, chemical inertness, electrical insulation properties, and its low coefficient of friction in a very wide temperature range make PTFE the most outstanding plastic in the industry.
- PTFE is readily commercially available from Honeywell, Inc.
- TEFLON PTFE K-10 is a free-flowing white powder having an average particle size of 560 micrometers, a bulk density of 570 g/L, a standard specific gravity of 2.16, a melting range of 320-340 C (608-644 F), is insoluble in all common solvents, and is stable to all common reagents at ordinary temperatures, and reacts with alkali metals and fluorine or reactive
- FEP is a semi-crystalline perfluorinated polymer closely related to PTFE being a copolymer of tetrafluoroethylene and hexafluoropropylene.
- FEP has the great practical advantage of being melt-processable, albeit at
- FEP Compared to PTFE, FEP has similarly excellent chemical
- FEP has better radiation resistance and much higher
- FEP is readily commercially available from DuPont (under the tradename TEFLON FEP) and Hoechst (under the tradename HOSTAFLON
- the fluorohydrocarbons are of two kinds: polyvinylidene fluoride
- PVDF polyvinyl fluoride
- fluorohydrocarbons While similar to the other fluoropolymers, fluorohydrocarbons have somewhat lower heat resistance and considerably higher tensile and cbmpressive strength.
- PVDF is the polymer of 1 ,1-difIuoroethylene. PVDF is a semi-
- PVDF is readily commercially available from Pennwalt Corp., (under the tradename KYNAR).
- fluoropolymers such as, but not limited to PTFE,
- FEP, and PVDF can be used for the purposes of this invention.
- Fluoropolymers in either a powder or dispersion form, can be incorporated, in varying amounts, into the friction material during a wet or dry mixing process.
- the fluoropolymer material is present in the friction material matrix in an amount of from about 0.1 to about 5 weight percent, based on the total
- the fluoropolymer material is present in
- the friction material matrix in an amount of up to about 2 weight percent, based on the total weight of the friction material matrix.
- Example I a typical formulation of a friction material matrix containing at least one fluoropolymer material, in accordance with one embodiment of the present invention, is presented in Example I, below:
- Example II a typical formulation of a friction material matrix containing at least one fluoropolymer material, in accordance with another embodiment of the present invention, is presented in Example II, below:
- the friction materials containing at least one fluoropolymer material of the present invention reduce the tendency for brakes to generate noise (as well as vibration) by ensuring, for example, that a thin and uniform transfer film is continuously being generated at the friction couple between the brake pad and the rotor or drum.
- a comparison test was performed.
- a first pair of brake pads having a friction lining formulation containing no fluoropolymer material (designated HFM-1) was subjected to a dynamometer test in order to evaluate the total noise produced at various frequencies (see Figure 1).
- the total noise of the HFM-1 formulation was significantly higher than the HFM-2 formulation, thus indicating that brake pads containing at least one fluoropolymer material in accordance with the present invention will produce less noise, especially less high frequency noise (i.e., squeal). Also noteworthy was the fact that the HFM-2 formulation did not produce any noise whatsoever above the 4000 Hz frequency.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US59653600A | 2000-06-16 | 2000-06-16 | |
| US596536 | 2000-06-16 | ||
| PCT/US2001/019398 WO2001098682A2 (en) | 2000-06-16 | 2001-06-18 | Improvement of noise behavior of non-asbestos friction materials through use of fluoropolymers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1292782A2 true EP1292782A2 (en) | 2003-03-19 |
Family
ID=24387701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01946462A Withdrawn EP1292782A2 (en) | 2000-06-16 | 2001-06-18 | Improvement of noise behavior of non-asbestos friction materials through use of fluoropolymers |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1292782A2 (es) |
| JP (1) | JP2004501271A (es) |
| CA (1) | CA2413249A1 (es) |
| MX (1) | MXPA02012248A (es) |
| WO (1) | WO2001098682A2 (es) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1955250B (zh) * | 2005-10-24 | 2012-05-16 | 日清纺绩株式会社 | 摩擦材料 |
| CN105722942A (zh) * | 2013-11-12 | 2016-06-29 | 曙制动器工业株式会社 | 摩擦材料组合物和摩擦材料 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1609837B1 (en) * | 2003-02-05 | 2016-11-02 | Hitachi Chemical Company, Ltd. | Friction material composition and friction material therefrom |
| US9039825B2 (en) * | 2009-06-01 | 2015-05-26 | Hitachi Chemical Co., Ltd. | Friction material composition, friction material using the same, and friction member |
| CN105088744A (zh) * | 2015-08-31 | 2015-11-25 | 万山特区宏安摩擦材料有限公司 | 一种碳基陶瓷摩擦材料用芳纶纤维改性方法 |
| CN111075869A (zh) * | 2019-12-04 | 2020-04-28 | 贵州新安航空机械有限责任公司 | 铁道货车用合成闸瓦材料配方及合成闸瓦制备工艺 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2851225B2 (ja) * | 1993-06-30 | 1999-01-27 | 大同メタル工業株式会社 | 摩擦用部材 |
| JP4010710B2 (ja) * | 1998-07-01 | 2007-11-21 | 曙ブレーキ工業株式会社 | 摩擦材 |
| JP2000256650A (ja) * | 1999-03-09 | 2000-09-19 | Hitachi Chem Co Ltd | 摩擦材組成物及び摩擦材組成物を用いた摩擦材 |
-
2001
- 2001-06-18 WO PCT/US2001/019398 patent/WO2001098682A2/en not_active Application Discontinuation
- 2001-06-18 JP JP2002504407A patent/JP2004501271A/ja not_active Withdrawn
- 2001-06-18 CA CA002413249A patent/CA2413249A1/en not_active Abandoned
- 2001-06-18 EP EP01946462A patent/EP1292782A2/en not_active Withdrawn
- 2001-06-18 MX MXPA02012248A patent/MXPA02012248A/es unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0198682A3 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1955250B (zh) * | 2005-10-24 | 2012-05-16 | 日清纺绩株式会社 | 摩擦材料 |
| CN105722942A (zh) * | 2013-11-12 | 2016-06-29 | 曙制动器工业株式会社 | 摩擦材料组合物和摩擦材料 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001098682A2 (en) | 2001-12-27 |
| CA2413249A1 (en) | 2001-12-27 |
| MXPA02012248A (es) | 2004-01-26 |
| JP2004501271A (ja) | 2004-01-15 |
| WO2001098682A3 (en) | 2002-04-11 |
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