WO1993020148A1 - Bearing and resin composition - Google Patents
Bearing and resin composition Download PDFInfo
- Publication number
- WO1993020148A1 WO1993020148A1 PCT/JP1993/000395 JP9300395W WO9320148A1 WO 1993020148 A1 WO1993020148 A1 WO 1993020148A1 JP 9300395 W JP9300395 W JP 9300395W WO 9320148 A1 WO9320148 A1 WO 9320148A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- weight
- bearing
- ether
- resin composition
- resin
- Prior art date
Links
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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/20—Sliding surface consisting mainly of plastics
- F16C33/201—Composition of the plastic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
Definitions
- the present invention is a plastic bearing particularly used as a bearing for a paper feed roller of office equipment such as a copying machine, a facsimile, a printing machine such as a dot printer, a laser printer, a plotter, a micro-reader printer, and the like. About.
- the present invention also relates to a resin composition which is widely used as a material for various molded articles such as the above bearings and sliding parts materials in the fields of electric and electronic equipment and machinery. Background art
- Ball bearings or oil-impregnated metal bearings are used as bearings for paper feed rollers in conventional office equipment.
- Ball bearings have the advantage of excellent wear resistance and low noise and do not damage the shaft of the other material, but have the disadvantage of being heavy and expensive due to the complicated structure.
- oil-impregnated metal bearings have a simple structure and are relatively inexpensive. However, since they contain oil, they have problems such as deterioration of the environment due to oil seepage and adhesion of oil to paper. Attempts have been made to develop inexpensive plastic bearings that are suitable for mass production. However, there is a problem when a bearing made of polyacetanol with excellent self-lubricating properties is inferior in wear resistance.
- polycyanaryl ether resins are known as engineering resins having excellent heat resistance, mechanical properties, electrical properties, flame retardancy, chemical resistance, etc. (Japanese Patent Application Laid-Open No. 62-223). No. 226 publication).
- the polyaryl aryl ether has the above-mentioned excellent properties and is a resin with a high limit PV value
- the resin alone has insufficient abrasion resistance and has particularly good sliding properties. Since it has drawbacks such as the inability to obtain, its properties are being improved by adding fluororesin or graphite.
- fluororesin mainly has an effect of lowering the coefficient of friction
- graphite and molybdenum disulfide have an effect of improving abrasion resistance
- An object of the present invention is to provide a sliding bearing which is excellent in wear resistance and low heat resistance, does not damage a mating material, is lightweight and relatively inexpensive, and is used as a bearing for a paper feed roller of office equipment. Is to do.
- Another object of the present invention is to have excellent basic properties as a polyacryl ether, and to provide abrasion resistance and low noise irrespective of whether the mating material is a hard material or a soft material.
- An object of the present invention is to provide a polyacryloyl ether resin composition which has advantages such as excellent resistance to damage of a partner material and the like.
- the present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, have found that the above-mentioned problems can be solved by a bearing formed by molding a resin pentamer combining a specific resin and an inorganic filler. Based on this, the present invention has been completed.
- the present invention provides the following general formula: (Where A r is , Co, Is shown. )
- p- reduced viscosity at 6 0 ° C when dissolved at a concentration of 0. 2 g Z d 1 to Kurorofuwenoru [7? Cn / c] is 0. 6 d 1 / g or more of polycyanaryl ether 39.9 to 80% by weight, fluorine resin 5 to 30% by weight, and at least one selected from carbon fibers, carbon beads and copper alloy powder 10 to 5
- the present invention provides a bearing characterized by being molded from a resin composition containing 5% by weight (hereinafter sometimes referred to as a resin composition for bearings). It has been found that by adding a specific combination of phosphor bronze powder and a fluorine resin to reel ether, a better abrasion resistance can be obtained than with conventional resin compositions. It was completed.
- the main component is the repeating unit represented by, and the reduced viscosity [? 7 / c] at 60 when dissolved in p-chlorophenol at a concentration of 0.2 gZ dl is 0.6 dl Zg or more.
- a resin composition containing 35 to 85% by weight of anoaryl ether, 5 to 60% by weight of phosphor bronze powder and 5 to 30% by weight of a fluororesin (hereinafter referred to as a resin composition for molding). )
- the polycyanoaryl ether used in the present invention may be any one having a repeating unit represented by the formula (I) as a main component, and among them, those having Ar of ⁇ QJ are preferable.
- the specific ratio varies depending on the type and the like, and cannot be unambiguously determined.
- it is generally preferable that the content of the repeating unit of the above formula (I) is 90% by weight or more. Homopolymers consisting of units are preferred.
- a dihalogenobenzonitrile represented by the formula: and a compound represented by HO—A r—OH are almost equimolar in a proportion of alkali metal carbonate. It is produced by reacting in an aprotic polar solvent under an inert gas atmosphere in the presence of a solvent.
- alkali metal carbonate for example, sodium carbonate, carbonate carbonate, lithium carbonate, cesium carbonate, rubidium carbonate and the like, and bicarbonate corresponding thereto can be used.
- the amount of these metal carbonates to be used may be appropriately selected depending on the situation, and is generally 1.0 to 1.3 times equivalent to the chemical formula 3 ⁇ 4 represented by HO—A r—OH. In particular, it is preferable that the amount is slightly excessive.
- aprotic polar solvents examples include N-methylpyrrolidone, 1,3-dimethylimidazolidinone, dimethylsulfoxide, dimethylformamide, and dimethylacetamide. Any amount may be sufficient to dissolve the compound of the general formula (IV) and the compound represented by H 0 -Ar-OH.
- a chain extender or a terminal terminator for example, fluorinated benzonitrile can be appropriately added.
- reaction temperature is usually 200 ° C or higher, preferably 200 to 210 ° C, and the reaction time is 2 to 6 hours. .
- polycyanaryl ethers thus obtained, and these can be used alone or in combination of two or more kinds as a mixture.
- p-60 of a solution of 0.2 g Zd1 in p-chlorophenol Use those having a reduced viscosity [ en Zc] in C of 0.6 dlZg or more, preferably 0.6 to 1.5 d1 Zg.
- the proportion of the polyarylaryl ether in the resin composition for bearings used in the present invention is less than 39.9% by weight, it is difficult to mold the bearing, and even if it can be molded, the sliding bearing is fragile and unsuitable for use. . On the other hand, if it exceeds 80% by weight, the friction coefficient of the bearing becomes large and the wear resistance becomes insufficient.
- a part of the polyarylaryl ether may be replaced with polyphenylene sulfide (PPS), polyetheretherketone (PEEK) or polyetherimide (PEI). It can.
- This substitution amount is preferably less than 90% by weight. If 90% by weight or more is replaced, the original excellent properties of polyaryl ether may not be exhibited.
- the preferred range of substitution is less than 70% by weight, and even less than 50% by weight.
- the molecular weight of PPS, PEEK, and PEI is not particularly limited, and may be appropriately selected depending on the type, purpose of use, and the like.
- the molecular weight of the resin should be selected in consideration of these factors.
- the intrinsic viscosity is preferably 0.1 dlZg or more, particularly preferably 0.15 to 0.5 dl / g, in a naphthalene solvent having a pore size of 206.
- the intrinsic viscosity is preferably 0.3 dlZg or more, more preferably 0.3 to L.2 dlZg in a p-chlorophenol solvent at 60 ° C.
- fluororesins used in the resin composition for bearings, and various types can be used.
- a propylene copolymer and a polymer of Fusidani vinylidene Among them, polytetrafluoroethylene (PTFE) is particularly preferable.
- PTFE polytetrafluoroethylene
- These fluororesins may be used alone or in combination of two or more.
- the bearing resin composition used in the present invention if the proportion of the fluororesin is less than 5% by weight, the friction coefficient of the obtained bearing increases, and if it exceeds 30% by weight, the fluororesin in the composition becomes large. Agglomerates to cause poor dispersion, resulting in poor appearance of the bearing and reduced mechanical strength.
- the resin composition for bearings used in the present invention further contains 10 to 55% by weight of at least one selected from carbon fibers, carbon beads, and copper sickles.
- Carbon fibers such as acrylonitrile-based, pitch-based, and cellulosic-based carbon fibers, and any of them may be used.
- Carbon fiber has an arrowhead diameter of 5 to It is preferable that the fiber length is about 0.1 to 10 mm at 20 / m, but chopped fiber or roving having a length of about 6 mm, which is generally used for resin filling, is preferably used.
- the carbon fiber may be used without any treatment, but it is also possible to use a carbon fiber whose surface is treated with various treatment agents, for example, an acid treatment, a base treatment, a partial oxidation treatment or a metallization treatment. it can.
- various treatment agents for example, an acid treatment, a base treatment, a partial oxidation treatment or a metallization treatment. It can.
- Specific examples of commercially available carbon fiber products include, for example, Toray T-300 (manufactured by Toray), Vesfite HTA, Vesfight 1000 (manufactured by Toho Rayon), Creca M, Creca C (Kureha Chemical Industry Company).
- the carbon beads are obtained by heating and curing a curing agent such as a resin such as resin or hexamethylenetetramine, and a novolak resin, and then carbonizing and firing in an inert atmosphere.
- a curing agent such as a resin such as resin or hexamethylenetetramine, and a novolak resin
- a particularly preferable one is a heat treatment of a granular phenol / formaldehyde resin having a methanol solubility of 20% by weight or less in a non-oxidizing atmosphere at a temperature of 500 ° C or more.
- Bellpearl series commercially available products such as those manufactured by Kanebo Co., Ltd. under the trade name Bellpearl series are known, and these are particularly preferably used because they are easily available.
- Bellpearl series specifically, for example, Bellpearl H-500, C-600, C-800, C-2000, C-2000S are preferable, and among them, C-600, C-2000, C-2000 2000 S is preferred.
- These carbon beads may be used alone or in combination of two or more.
- the copper alloy powder examples include copper, tin, zinc, lead, nickel, iron, phosphorus, and aluminum. Copper alloy powder is used that does not interfere with the filling of the resin component with the rubber or gay element.
- powders of brass, bronze, phosphor bronze, etc. are preferable. In the case of brass, the one containing 12 to 40% by weight of zinc is used, and in the case of bronze, the one containing tin of 2 to 40% by weight is used. In the case of phosphor bronze, it is preferable to contain 1 to 20% by weight of tin and 1 to 20% by weight of phosphorus.
- a copper alloy having a particle diameter of 1 / m or more is preferably used. If the particle size is less than 1 nm, the particles may aggregate and not be uniformly dispersed.
- the resin alone has a volume resistivity of at least 10 12 ⁇ ⁇ cm. If this is used for bearings, it has the disadvantage that when the shaft dries, static electricity will be generated, causing dust to adhere to the shaft and causing errors in nearby electronic devices.
- the resin used in this study can reduce the volume resistivity of the resin composition by filling it with fibers or carbon beads.
- carbon fiber has 10% by weight and carbon beads have 5% by weight. 0% by weight or more is required. Therefore, by relatively small additions of further carbon black bearing resin composition need use the present invention in the range of 0. 1 to ⁇ 0 wt%, 1 volume resistivity of the bearing resin «was 0 6 ⁇ ⁇ cm or less, and can impart antistatic properties to the bearing.
- Examples of the type of carbon black include acetylene black, Ketjen black, furnace black, thermal black, and channel black.Ketjen black is preferable to effectively reduce the volume resistivity by adding a small amount. . Further, the particles having a particle size in the range of 0.01 to 1 are used.
- each component are not particularly limited, but usually, for example, the above-mentioned polycyanaryl At least one selected from the group consisting of thermoplastic resin components such as ether, polyphenylene sulfide, polyether ether ketone, and polyether imide; the fluororesin component; and the carbon fibers, carbon beads, and copper alloy powder.
- the method of dry-mixing the components in the above-mentioned predetermined ratio and melt-kneading is preferred.
- the temperature of the melt-kneading is usually in the range of about 34 ° C. to 38 ° C., preferably about 350 ° C. to 37 ° C.
- the resin composition for bearings thus obtained is formed into various molded products such as pellets using a single-screw or twin-screw extruder, if necessary, and further, for example, injection molding or the like. Thereby, it is formed into a desired bearing shape.
- the bearing obtained as described above has excellent wear resistance, does not damage the mating material, does not generate abnormal noise, and prevents malfunction of electronic equipment due to charging. It is a very excellent bearing in practical use with its characteristics and light weight.It is widely used as a sliding bearing for paper feed rollers in office equipment such as copiers, facsimile machines, and printing machines. Can be used advantageously.
- a molding resin composition containing 5 to 30% by weight of a fluorine resin has excellent abrasion resistance irrespective of whether the mating material is soft or hard, without damaging the mating material and generating abnormal noise.
- the phosphor bronze of the phosphor bronze powder used in the molding resin composition of the present invention is as described above. What is necessary is just to select suitably according to the purpose of use etc.
- the phosphor bronze powder having a particle size of 1 im or more and 200 m or less is preferably used. If the particle size is less than 1 m, the particles may aggregate and not be uniformly dispersed. On the other hand, if it is larger than 200 m, surface smoothness and surface appearance may be deteriorated.
- the fluororesin used in the resin composition for molding of the present invention a self-contained resin is used, and among these, polytetrafluoroethylene (PTFE), polytetrafluoroethylene-perfluorinated Polypropylene copolymer (PFA) is preferred.
- PTFE polytetrafluoroethylene
- PFA polytetrafluoroethylene-perfluorinated Polypropylene copolymer
- One of these fluororesins may be used alone, or two or more thereof may be used in combination. If the proportion of the fluororesin is less than 5% by weight, the wear coefficient of the molded article increases, and if it exceeds 30% by weight, the fluororesin is difficult to disperse in the composition, resulting in poor dispersion and poor appearance of the molded article. However, the mechanical strength is reduced.
- the above-mentioned bearing resin composition may be suitably adjusted within the range t as long as the object of the present invention is not hindered.
- Other polymer components and additive components used in the above may be added.
- the order of mixing the components and the method of molding are the same as in the case of the bearing resin composition.
- thermoplastic resin component a fluororesin component, and at least one component selected from carbon fiber, carbon beads and copper alloy were dry-mixed in the proportions shown in Table 1.
- the mixture was melt-kneaded with a twin-screw extruder, and the obtained strand was cut to obtain pellets of various blends.
- This pellet was molded using an injection molding machine under the conditions of a melting temperature of 350 and a mold temperature of 200, and was formed into a cylindrical shape having an inner diameter of 8 mm, an outer diameter of 12 mm, and a length of 9 mm.
- a sliding bearing and a flat plate having a thickness of 3 mm ⁇ 80 mm ⁇ 80 mm were obtained.
- This slide bearing is incorporated into the paper bearing of Fuji Xerox Co., Ltd. In this case, 1,000,000 copies of A4 size copy were continuously made at a speed of 40 sheets per minute. At this time, for the shaft of the paper feeding unit, Ni-plated SUM22 [sulfur composite free-cutting steel (JIS G4804)] with a diameter of 7.95 mm was used.
- the amount of wear was measured from the change in the bearing inner diameter before and after copying. Also, during copying, it was examined whether abnormal noise occurred on the sliding surface between the shaft and the bearing. Furthermore, after copying, the shaft was visually checked for damage. The results are shown in Table 1 in the evaluation of actual equipment. In Table 1, the amount of each component is shown in% by weight.
- a flat plate with a thickness of 3 mm X 80 mm X 80 mm was attached to a Suzuki-type thrust-type friction and wear tester (EFM-III-F, manufactured by Orientec Co., Ltd.).
- the coefficient of friction was measured under the condition of 5C.
- Example 1 A pellet of polyacetal (trade name: Gyuracon M90-44) manufactured by Polyplastics Co., Ltd. was molded using an injection molding machine at a melting temperature of 210 ° C and a mold temperature of 80 ° C. A plain bearing and a flat plate having the same shape as those described above were obtained.
- Example 2 The same actual machine evaluation as in Example 1 was performed on an oil-impregnated copper-based hardened bearing having an inner diameter of 8 mm, an outer diameter of 12 mm, and a length of 9 mm provided in a Fuji Xerox copier. The results are shown in Table 1. Table: Difficult cases Comparative examples
- thermoplastic resin component The thermoplastic resin component, the phosphor bronze powder and the fluororesin were dry-blended in the proportions shown in Table 1.
- the mixture was melt-kneaded with a twin-screw extruder, and the obtained strand was cut to obtain pellets of various blends.
- This pellet was molded using an injection molding machine under the conditions of a melting temperature of 350 ° C and a mold temperature of 200 ° C to obtain a flat plate having a thickness of 3 mm X 80 mm X 80 mm. This flat plate was cut to obtain a test piece for measuring sliding characteristics.
- the raw materials used in the examples and comparative examples are as follows.
- PEEK Polyetheretherketone
- PPS Polyphenylene sulfide
- KP S # 2 1 4 manufactured by Kureha Chemical Industry Co., Ltd.
- PFA Polytetrafluoroethylene-perfluoropropylene copolymer
- Carbon black Lion Corporation EC 600 JD Average particle size 0.03 Graphite: Japan Lead Industry Co., Ltd. ACP-1 00 0 Average particle size 1 fi
- the present invention has excellent characteristics such as excellent abrasion resistance, without damaging the mating material, generating no abnormal noise, and preventing malfunction of electronic equipment due to charging.
- a practically superior bearing having advantages such as light weight and high weight was obtained.
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP93906850A EP0604655A1 (en) | 1992-03-30 | 1993-03-30 | Bearing and resin composition |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10235692 | 1992-03-30 | ||
JP4/102356 | 1992-03-30 | ||
JP4/177753 | 1992-06-12 | ||
JP17775392 | 1992-06-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993020148A1 true WO1993020148A1 (en) | 1993-10-14 |
Family
ID=26443062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1993/000395 WO1993020148A1 (en) | 1992-03-30 | 1993-03-30 | Bearing and resin composition |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0604655A1 (ja) |
WO (1) | WO1993020148A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009068390A (ja) * | 2007-09-12 | 2009-04-02 | Toyota Motor Corp | 摺動部材被覆組成物、摺動部材及び内燃機関用ピストン |
WO2011070896A1 (ja) * | 2009-12-11 | 2011-06-16 | オムロン株式会社 | ゴム組成物およびその利用 |
CN116144160A (zh) * | 2022-12-01 | 2023-05-23 | 电子科技大学 | 一种聚芳醚腈基自润滑多元复合材料及其制备方法 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS58160352A (ja) * | 1981-10-22 | 1983-09-22 | エイ・イ−・ピ−・エル・シ− | プラスチツク・アロイ |
JPS58179262A (ja) * | 1982-04-14 | 1983-10-20 | Mitsui Toatsu Chem Inc | 潤滑性樹脂組成物 |
JPS59182843A (ja) * | 1983-03-14 | 1984-10-17 | エイイ−ピ−エルシ− | ポリエーテルエーテルケトン含有物質の組成物およびその製造方法 |
JPS61190553A (ja) * | 1985-02-19 | 1986-08-25 | Idemitsu Kosan Co Ltd | 潤滑性樹脂組成物 |
JPS61225247A (ja) * | 1985-03-27 | 1986-10-07 | アモコ、コ−ポレ−ション | 耐摩耗性ポリ(アリ‐ルエ‐テルケトン)/ポリイミド混合物 |
JPS63286458A (ja) * | 1987-05-18 | 1988-11-24 | Yobea Rulon Kogyo Kk | 四フツ化エチレン樹脂組成物 |
JPH01236269A (ja) * | 1988-03-16 | 1989-09-21 | Idemitsu Kosan Co Ltd | 樹脂組成物 |
JPH0415253A (ja) * | 1990-05-09 | 1992-01-20 | Ntn Eng Plast Corp | ポリシアノアリールエーテル系樹脂組成物 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8815990D0 (en) * | 1988-07-05 | 1988-08-10 | T & N Technology Ltd | Bearings |
JPH0391559A (ja) * | 1989-09-04 | 1991-04-17 | Idemitsu Kosan Co Ltd | 樹脂組成物 |
-
1993
- 1993-03-30 EP EP93906850A patent/EP0604655A1/en not_active Withdrawn
- 1993-03-30 WO PCT/JP1993/000395 patent/WO1993020148A1/ja not_active Application Discontinuation
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58160352A (ja) * | 1981-10-22 | 1983-09-22 | エイ・イ−・ピ−・エル・シ− | プラスチツク・アロイ |
JPS58179262A (ja) * | 1982-04-14 | 1983-10-20 | Mitsui Toatsu Chem Inc | 潤滑性樹脂組成物 |
JPS59182843A (ja) * | 1983-03-14 | 1984-10-17 | エイイ−ピ−エルシ− | ポリエーテルエーテルケトン含有物質の組成物およびその製造方法 |
JPS62266223A (ja) * | 1983-03-14 | 1987-11-19 | エイイ−ピ−エルシ− | 平軸受およびその製造方法 |
JPS61190553A (ja) * | 1985-02-19 | 1986-08-25 | Idemitsu Kosan Co Ltd | 潤滑性樹脂組成物 |
JPS61225247A (ja) * | 1985-03-27 | 1986-10-07 | アモコ、コ−ポレ−ション | 耐摩耗性ポリ(アリ‐ルエ‐テルケトン)/ポリイミド混合物 |
JPS63286458A (ja) * | 1987-05-18 | 1988-11-24 | Yobea Rulon Kogyo Kk | 四フツ化エチレン樹脂組成物 |
JPH01236269A (ja) * | 1988-03-16 | 1989-09-21 | Idemitsu Kosan Co Ltd | 樹脂組成物 |
JPH0415253A (ja) * | 1990-05-09 | 1992-01-20 | Ntn Eng Plast Corp | ポリシアノアリールエーテル系樹脂組成物 |
Non-Patent Citations (1)
Title |
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See also references of EP0604655A4 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009068390A (ja) * | 2007-09-12 | 2009-04-02 | Toyota Motor Corp | 摺動部材被覆組成物、摺動部材及び内燃機関用ピストン |
WO2011070896A1 (ja) * | 2009-12-11 | 2011-06-16 | オムロン株式会社 | ゴム組成物およびその利用 |
US8580892B2 (en) | 2009-12-11 | 2013-11-12 | Omron Corporation | Rubber composition and uses thereof |
CN116144160A (zh) * | 2022-12-01 | 2023-05-23 | 电子科技大学 | 一种聚芳醚腈基自润滑多元复合材料及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
EP0604655A4 (en) | 1994-05-18 |
EP0604655A1 (en) | 1994-07-06 |
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