WO1993020143A1 - Vulcanizable fluoroelastomer composition - Google Patents
Vulcanizable fluoroelastomer composition Download PDFInfo
- Publication number
- WO1993020143A1 WO1993020143A1 PCT/JP1993/000415 JP9300415W WO9320143A1 WO 1993020143 A1 WO1993020143 A1 WO 1993020143A1 JP 9300415 W JP9300415 W JP 9300415W WO 9320143 A1 WO9320143 A1 WO 9320143A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vulcanizable
- fluorine
- parts
- weight
- elastomer
- Prior art date
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Classifications
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0025—Crosslinking or vulcanising agents; including accelerators
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
Definitions
- the present invention relates to a novel vulcanizable composition of a fluorine-containing elastomer. More specifically, the present invention provides a vulcanizate having excellent tensile properties, heat resistance, oil resistance, sealing properties at high temperatures, etc., which are equivalent to those of conventionally known fluorine-containing elastomer vulcanizates.
- the present invention also relates to a fluorine-containing elastomer-vulcanizable composition which has been greatly improved in molding workability, particularly in injection molding and the like during vulcanization molding.
- fluorinated elastomers have excellent heat resistance, oil resistance, etc., they are used in various industrial fields, such as automobiles, ships, aircraft, hydraulic equipment, general machinery, and pollution control. It is used for 0-rings, gaskets, oil seals, diaphragms, hoses, rolls, sheet materials, etc. in departments. —However, in these elastomers, in recent years, productivity improvement and labor saving at the time of production have become major issues, and demand for a mild elastomer for vulcanization molding work has been required. In addition, vulcanization molding by injection molding is advantageous for productivity improvement and labor saving, and the demand for an elastomer suitable for vulcanization molding by injection molding is increasing. 'ing.
- fluorinated elastomers have these excellent properties, but are not satisfactory in moldability due to their higher viscosities than other elastomers.
- a method of reducing the molecular weight is used.However, in the case of an elastomer with a reduced molecular weight and increased fluidity, not only is the sticking of the gel severe, which causes a problem in the operation, but also the low molecular weight component is reduced. Important properties such as compression set also deteriorate because crosslinking is difficult in polyol vulcanization.
- processing aids such as higher fatty acid esters, silicone compounds, and low molecular weight polyethylene are used (for example, US Pat. No. 4,065,419). Japan's Special Publication No. 52-4 4 8 9 6).
- a small amount of the processing aid does not provide a sufficient effect, and a sufficient amount of the processing aid required to achieve a sufficient improvement in workability results in a significant decrease in the tensile strength and the sealing performance at high temperatures. Can be seen.
- external mold release agents higher fatty acid esters, silicone compounds, fatty acid amides, low molecular weight polyethylene Internal release agents such as' have been used.
- a method of adding an amine and a salt of an amine as a vulcanization aid when coagulating an aqueous emulsion of a fluorinated copolymer is disclosed in Japanese Patent Publication No. 57-81 24. Have been. But this method With this method, satisfactory results cannot be obtained regarding the processability during vulcanization molding and the physical properties of the vulcanizate.
- An object of the present invention is to provide not only a vulcanizate having excellent tensile properties, heat resistance, oil resistance, and high-temperature sealability equivalent to those of a conventionally known fluorine-containing elastomer vulcanizate, Mold releasability of the molded product during vulcanization molding, compression set of the obtained vulcanizate, fluidity and roll workability during vulcanization molding, and especially injection molding during vulcanization molding
- An object of the present invention is to provide a fluorinated elastomer-vulcanizable composition having significantly improved processability such as molding workability and physical properties of the obtained vulcanizate.
- the present inventors have conducted intensive studies and, as a result, surprisingly, by blending a specific aliphatic amine compound with a vulcanizable composition composed of a fluorine-containing elastomer and a polyol, the above-mentioned object was achieved.
- the present inventors include an aliphatic amine compound represented by the formula: R ⁇ N ⁇ (R is an alkyl group, ⁇ is an integer of 1 to 3, jS is 3- ⁇ ).
- the mold release of the molded product during vulcanization can be achieved without impairing the physical properties of the vulcanizate obtained by vulcanization.
- Fluorine-containing elastomers that have significantly improved processability and physical properties of the resulting vulcanizate, such as compression set of the vulcanizate and compression set, as well as fluidity during vulcanization and molding workability such as injection molding. It has been found that a vulcanizable composition can be obtained. The present invention 'It was completed based on this finding.
- the vulcanizable fluorine-containing elastomer used as the component (a) includes a vinylidene fluoride unit, a hexafluoropropene unit and In some cases, fluorine-containing elastomers composed of liter trifluoroethylene units, fluorine-containing elastomers composed of vinylidene fluoride units, perfluorovinyl ether units and tetrafluoroethylene units, perfluorovinyl ether and Fluoro-containing elastomers composed of tetrafluoroethylene units, fluorinated elastomers composed of tetrafluoroethylene units and propylene units, and optionally vinylidene fluoride units, and fluorophosphazene elastomers.
- fluorinated units consisting of vinylidene fluoride units, hexafluoropropene units and possibly liter trafluoroethylene units 'Nylon elastomer is preferably used.
- VDF units vinylidene fluoride units
- HFP units hexafluoropropene units
- TFE units a three-component fluorinated elastomer containing tetrafluoroethylene units
- the content of TFE units is 35 weights of the total weight of VDF units, HFP units and TFE units. % Is desirable. If this content exceeds 35% by weight, the elasticity tends to decrease.
- the polyol vulcanizing agent of the component (b) includes a polyol compound as a crosslinking agent.
- polyol compounds as cross-linking agents include, for example, bisphenol AF, bisphenol A, bisphenol S, dihydroxybenzobenzophenone, hydroquinone, 2,4,6-tricapto-S — Triazine, 4,4'-thiodiphenol, and their metal salts.
- the mixing ratio of the polyol compound as a crosslinking agent in the fluorine-containing elastomer-curable composition of the present invention is usually 0.1 to 10 parts by weight with respect to 100 parts by weight of the component (a). Ari, preferred The amount is 0.5 to 5 parts by weight.
- the polyol vulcanizing agent (b) can further contain a vulcanization accelerator that functions as a catalyst in the crosslinking reaction.
- vulcanization accelerator examples include a phosphonium salt, an ammonium salt, an imidium salt, a sulfonium salt, an aminophosphine derivative and the like. More specifically, tetramethylammonium chloride, tetrabutylammonium chloride, tetramethylammonium chloride, benzinole triphenylamine phospholipid chloride Chloride, bis (penzinoresylphenylphosphine) iminodichloride, DBU salt (for example, 1,8-diazabicyclo [5.4.0] — 7-indesenimuchlor or 1,8-diazabicyclo [5.4.0] 5.4.0] — 7-endenium bromide).
- the compounding ratio of the vulcanization accelerator in the fluorinated elastomer-vulcanizable composition of the present invention is usually 0.05 to 10 parts by weight, preferably 100 to 100 parts by weight of the component (a). Is from 0.1 to 5 parts by weight.
- vulcanization accelerating activators can be added to enhance the effect of the vulcanization accelerating agent.
- Typical examples of the vulcanization accelerating activator include sulfone compounds such as dimethyl sulfone and dichlorophenyl sulfone.
- Polyol vulcanization usually involves a crosslinking reaction in the presence of a divalent metal hydroxide and a divalent metal oxide serving as an acid acceptor.
- a divalent metal hydroxide and a divalent metal oxide serving as an acid acceptor.
- the valent metal hydroxide and the divalent metal oxide are usually 1 to 10 parts by weight with respect to 100 parts by weight of the component (a), and the combined amount of the two is 2 to 2 parts. The range is 0 parts by weight.
- hydroxides and oxides of divalent metals examples include hydroxides and oxides of magnesium, calcium, zinc, lead and the like.
- the component (c) is an aliphatic amine compound represented by the formula: R a NH 3 (R is an alkyl group, ⁇ is an integer of 1 to 3, and jS is 3— ⁇ ).
- the number of carbon atoms in the alkyl group is preferably in the range of 12 to 22, and more preferably in the range of 14 to 18. This carbon number is in the above range from the viewpoint of the preferred melting point of the amine itself, which is compatible with the fluorine-containing elastomer, and the fluorine-containing elastomer vulcanizability & composition of the present invention is particularly preferable. Excellent desired effects can be exhibited. The effect of the present invention can be best exhibited when the number of carbon atoms is in the range of 12 to 22.
- aliphatic amine compound examples include monotetradecylamine, monohexadecylamine, monooctadecinoleamine, monodecylamine, monodocoseninoreamin, monooleylamine, ditetradecylamine, dihexadedecylamine. , Dioctadecylamine, didecylamine, didocosenylamine, joleylamine, tritetradecylamine, trihexadesylamine, trioctadecylamine, tridecylamine, tridocosenylamine, trioleylamine, etc. List 'You can These aliphatic amine compounds may be used alone or in combination.
- the mixing ratio of the aliphatic amine compound as the component (c) in the fluorinated elastomer-vulcanizable composition of the present invention is usually the vulcanizable fluorinated elastomer as the component (a).
- the amount is 0.05 to 10 parts by weight, preferably 0.1 to 5 parts by weight, per 100 parts by weight.
- the reason why the component (c) of the present invention falls within this range is that if the content is less than 0.05 part by weight, a sufficient effect cannot be obtained. This is because the physical properties of the obtained vulcanizate, such as compression set and tensile strength, are significantly reduced.
- fluorine-containing elastomer vulcanizable composition of the present invention if necessary, other components such as carbon black, austin black, graphite, silica clay, silica earth, talc may be used. , Wollastonite, Calcium carbonate, Calcium silicate, Calcium fluoride, Barium sulfate, Sulfone compound, Phosphate ester, Higher fatty acid ester, Calcium fatty acid, Fatty acid amide, Low molecular weight polyethylene, Silicone oil, Fillers and processing of silicone grease, metal stone, stearic acid, calcium stearate, magnesium stearate, aluminum stearate, zinc stearate, titanium white, red iron oxide, etc. Auxiliaries, plasticizers, coloring agents, etc. can be added. The amount of these additives is usually used in this field. 'A range of quantities can be used.
- a processing aid consisting of at least one higher fatty acid ester should be used in combination with the aliphatic amine, and more favorable vulcanization. Even better flowability and roll workability of the composition of the present invention during molding can be obtained. The properties of higher fatty acid esters alone (e.g., tensile strength and permanent compression set) are severely degraded, but the use of higher fatty acid esters in the presence of aliphatic amines does not impair these properties. Excellent mold release, flowability and roll workability are obtained.
- the processing aid composed of at least one kind of higher fatty acid ester a purified substance of a box obtained from animals, plants and minerals is preferably used.
- the Yo Li Specifically, Kyanderi La Wa box, rice bran force 3 ⁇ 4 word box, Karunaupawa box, Montanwa box, Serakkuwa box is preferably used.
- candelilla wax, rice bran wax, and canola renewable wax are most preferably used.
- the addition amount of at least one of these higher fatty acid esters is from 0.1 to 1 part by weight of vulcanizable fluorine-containing elastomer as component (a). It is in the range of 0 parts by weight, preferably in the range of 0.2 to 5 parts by weight.
- one or more conventionally known vulcanizing agents that is, a peroxide vulcanizing agent and a diamine vulcanizing agent may be blended.
- the fluorine-containing elastomer composition of the present invention is obtained by mixing and kneading the component (a), the component (b), the component (c) and the optional components used as necessary with a roll, a Banbury mixer, or the like. Can be prepared.
- the method of vulcanizing the fluorinated elastomer vulcanizable composition obtained in this manner includes, for example, an open kneading reroll or a closed kneading reroll (Banbury mixer, pressurized kneader). Etc.), the vulcanizable composition is cut into ribs and vulcanized by injection molding, followed by secondary vulcanization if desired.
- the conditions for injection molding are as follows: mold temperature of 150 to 200 ° C and time of 1 to 10 minutes. A range of 50 to 250 ° ⁇ and a time of 1 to 48 hours is adopted.
- the following physical properties and mold release properties of the vulcanized product obtained by vulcanizing the fluorine-containing elastomer-vulcanizable composition were determined by the following methods.
- Vulcanized material can be removed from the mold without resistance.
- the vulcanized material can be removed without resistance except for the sprue portion of the mold.
- ⁇ A part of the O-ring adheres to the mold but can be removed.
- X The O-ring sticks to the mold and is cut off at the burr-cutting part and remains on the mold.
- VDF Vinylidene fluoride
- HFP Hexafluoroprobene
- TFE Tetrafluorodiethylene
- the mold releasability was evaluated by processing the re-kneaded kneaded dough into a ribbon shape and performing injection molding at a mold temperature of 180 ° C.
- composition is shown in Table 1, and the physical properties of the vulcanized product thus obtained, compression set, mold release property, and appropriate vulcanization time are shown in Table 2.
- Table 1 The composition is shown in Table 1, and the physical properties of the vulcanized product thus obtained, compression set, mold release property, and appropriate vulcanization time are shown in Table 2.
- Example 1 Various tests were carried out in the same manner as in Example 1 except that 1 part by weight of "Cera Jamaica NC-1630" manufactured by Noda Pex Co., Ltd., Japan, was used as candelilla wax. The composition is shown in Table 1 and the results are shown in Table 1.
- Example 2 Various tests were carried out in the same manner as in Example 1 except that 1.0 part by weight of octadecylamine was changed to 0.5 part by weight, and 1 part by weight of “Sera Jamaica NC-1 630” manufactured by Noda Wax Co., Ltd. of Japan was added. I went. The composition is shown in Table 1 and the results are shown in Table 2.
- Example 2 Various tests were carried out in the same manner as in Example 1 except that 1.0 part by weight of octadecylamine was changed to 1.0 part by weight.
- the composition is shown in Table 1 and the results are shown in Table 2.
- Example 2 Various tests were conducted in the same manner as in Example 1 except that 1.0 part by weight of octadecylamine was changed to 1.0 part by weight of trioctadecylamine.
- the composition is shown in Table 1 and the results are shown in Table 2.
- Example 2 Various tests were conducted in the same manner as in Example 1 except that 1.0 part by weight of octadecylamine was not used. The composition is shown in Table 1 and the results are shown in Table 2.
- Comparative Example 2 Various tests were conducted in the same manner as in Comparative Example 1 except that 1.0 part by weight of the higher fatty acid ester was added. The composition is shown in Table 1 and the results are shown in Table 2.
- Example 6- Various tests were performed in the same manner as in Example 1 except that 1.0 part by weight of octadecylamine was changed to 1.0 part by weight.
- the composition is shown in Table 1 and the results are shown in Table 2.
- Table 1 shows the formulations which were subjected to various tests in the same manner as in Example 1 except that 1.0 part by weight of octadecylamine was changed to 1.0 part by weight of eicosylamine, and Table 2 shows the results.
- Examples 1, 4, and 5 using the composition of the present invention in which a specific aliphatic amine compound was blended exhibited a significant improvement in mold release properties. Have been.
- Examples 1, 4, 5, 6, and 7 have greatly improved mold release properties.
- Examples 2 and 3 in which an internal mold release agent was used in combination, the mold release properties were significantly improved.
- Example 8 the Mooney viscosity was lower than in Comparative Example 3 in which octadecylamine was not used, and the extrusion characteristics were significantly improved.
- Example 9 the compression set was significantly improved as compared with Comparative Example 4 in which octadecylamine was not used.
- Example 10 shows that the vulcanizates of the present invention are excellent in heat aging resistance.
- Example 12 shows that the vulcanizates of the present invention have excellent hot physical properties.
- the fluorinated elastomer-vulcanizable composition of the present invention provides a mold release property of a vulcanized molded product at the time of vulcanization molding, a fluidity of the composition at the time of molding, and a workability at the time of molding, particularly at the time of injection molding. It is clear that has been greatly improved.
- Fluorine-containing elastomer A • VDF, HFP
- composition ratio is 60 each
- Fluorine-containing elastomer B • ⁇
- the composition ratio of VDF and HFP is 63 and 37% by weight, respectively, and the fluorine content is 66%
- the composition ratio of VDF and HFP is 63, 37% by weight, respectively.
- the fluorinated elastomer-vulcanizable composition of the present invention can maintain the physical properties of a vulcanized product obtained by vulcanizing the same and good sealing properties at a high temperature, and at the same time, the metal of the molded product at the time of vulcanization molding.
- Vulcanized products that have significantly improved mold release properties, fluidity of the composition during molding, workability during molding, especially during injection molding, and have the desired excellent physical properties with high productivity. Can be provided.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69322157T DE69322157T2 (de) | 1992-04-03 | 1993-04-01 | Vulkanisierbare fluorelastomerzusammensetzung |
EP93906868A EP0634456B1 (en) | 1992-04-03 | 1993-04-01 | Vulcanizable fluoroelastomer composition |
US08/313,104 US5508355A (en) | 1992-04-03 | 1993-04-01 | Vulcanizable fluorine-containing elastomer composition |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8214792 | 1992-04-03 | ||
JP4/82147 | 1992-04-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993020143A1 true WO1993020143A1 (en) | 1993-10-14 |
Family
ID=13766328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1993/000415 WO1993020143A1 (en) | 1992-04-03 | 1993-04-01 | Vulcanizable fluoroelastomer composition |
Country Status (4)
Country | Link |
---|---|
US (1) | US5508355A (ja) |
EP (1) | EP0634456B1 (ja) |
DE (1) | DE69322157T2 (ja) |
WO (1) | WO1993020143A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0737714A1 (en) * | 1993-12-29 | 1996-10-16 | Daikin Industries, Limited | Fluororubber composition and molding thereof |
JP6120571B2 (ja) * | 2010-08-25 | 2017-04-26 | ダイキン工業株式会社 | フッ素ゴム成形品 |
JP6120572B2 (ja) * | 2010-08-25 | 2017-04-26 | ダイキン工業株式会社 | フッ素ゴム成形品 |
JP6132552B2 (ja) * | 2010-08-25 | 2017-05-24 | ダイキン工業株式会社 | ベルト材 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000313034A (ja) * | 1999-04-28 | 2000-11-14 | Shin Etsu Chem Co Ltd | フッ素ゴム成型品用金型及びフッ素ゴム成型品の製造方法 |
WO2011155236A1 (ja) * | 2010-06-09 | 2011-12-15 | 電気化学工業株式会社 | 積層体及びその加硫物 |
JP5781076B2 (ja) | 2010-08-25 | 2015-09-16 | ダイキン工業株式会社 | ホース |
CN103080616B (zh) | 2010-08-25 | 2016-04-27 | 大金工业株式会社 | 密封材料 |
JP5790655B2 (ja) | 2010-08-25 | 2015-10-07 | ダイキン工業株式会社 | フッ素ゴム組成物 |
US9006328B2 (en) | 2010-08-25 | 2015-04-14 | Daikin Industries, Ltd. | Fluororubber composition |
EP2610303B1 (en) * | 2010-08-25 | 2016-07-20 | Daikin Industries, Ltd. | Fluoro rubber molding with complex shape |
JP5842932B2 (ja) | 2011-08-25 | 2016-01-13 | ダイキン工業株式会社 | ダイヤフラム |
JP5788751B2 (ja) * | 2011-09-26 | 2015-10-07 | 電気化学工業株式会社 | 積層体、架橋物及び成形部材 |
WO2013108936A1 (en) | 2012-01-20 | 2013-07-25 | Daikin Industries, Ltd. | Fluororubber composition and method for producing same |
CN104254563B (zh) * | 2012-02-24 | 2017-09-12 | 大金工业株式会社 | 氟橡胶组合物 |
EP2800783B1 (en) | 2012-02-24 | 2018-04-18 | Daikin Industries, Ltd. | Fluororubber composition |
WO2013125731A1 (en) | 2012-02-24 | 2013-08-29 | Daikin Industries, Ltd. | Fluororubber composition |
WO2018230336A1 (ja) | 2017-06-12 | 2018-12-20 | Nok株式会社 | フッ素ゴム組成物およびフッ素ゴムシール材 |
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JPS4989741A (ja) * | 1972-12-28 | 1974-08-27 | ||
JPS55131039A (en) * | 1979-04-02 | 1980-10-11 | Nok Corp | Vulcanizable fluorine-containing elastomer composition |
JPS55131038A (en) * | 1979-03-30 | 1980-10-11 | Nok Corp | Vulcanizable fluorine-containing elastomer composition |
JPS5728147A (en) * | 1980-07-25 | 1982-02-15 | Daikin Ind Ltd | Fluororubber and its composition |
JPS6440550A (en) * | 1987-08-07 | 1989-02-10 | Asahi Chemical Ind | Fluororubber composition |
JPH01135854A (ja) * | 1987-11-20 | 1989-05-29 | Asahi Chem Ind Co Ltd | 押出加工用フッ素ゴム組成物 |
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US3622549A (en) * | 1969-08-27 | 1971-11-23 | Du Pont | Vulcanization of fluoroelastomers |
GB1390847A (en) * | 1971-07-17 | 1975-04-16 | Daikin Ind Ltd | Fluorine-containing elastomer composition |
JPS604207B2 (ja) * | 1976-12-16 | 1985-02-02 | 旭硝子株式会社 | 含フツ素エラストマーの製造方法 |
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1993
- 1993-04-01 DE DE69322157T patent/DE69322157T2/de not_active Expired - Fee Related
- 1993-04-01 EP EP93906868A patent/EP0634456B1/en not_active Expired - Lifetime
- 1993-04-01 US US08/313,104 patent/US5508355A/en not_active Expired - Lifetime
- 1993-04-01 WO PCT/JP1993/000415 patent/WO1993020143A1/ja active IP Right Grant
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JPS4987740A (ja) * | 1972-12-25 | 1974-08-22 | ||
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JPS55131038A (en) * | 1979-03-30 | 1980-10-11 | Nok Corp | Vulcanizable fluorine-containing elastomer composition |
JPS55131039A (en) * | 1979-04-02 | 1980-10-11 | Nok Corp | Vulcanizable fluorine-containing elastomer composition |
JPS5728147A (en) * | 1980-07-25 | 1982-02-15 | Daikin Ind Ltd | Fluororubber and its composition |
JPS6440550A (en) * | 1987-08-07 | 1989-02-10 | Asahi Chemical Ind | Fluororubber composition |
JPH01135854A (ja) * | 1987-11-20 | 1989-05-29 | Asahi Chem Ind Co Ltd | 押出加工用フッ素ゴム組成物 |
JPH01135855A (ja) * | 1987-11-20 | 1989-05-29 | Asahi Chem Ind Co Ltd | 加工助剤組成物 |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0737714A1 (en) * | 1993-12-29 | 1996-10-16 | Daikin Industries, Limited | Fluororubber composition and molding thereof |
EP0737714A4 (en) * | 1993-12-29 | 1997-05-07 | Daikin Ind Ltd | COMPOSITION OF FLUOROCAOUTCHOUC AND MOLDING THEREOF |
US5891941A (en) * | 1993-12-29 | 1999-04-06 | Daikin Industries Ltd. | Fluororubber composition and molded article thereof |
JP6120571B2 (ja) * | 2010-08-25 | 2017-04-26 | ダイキン工業株式会社 | フッ素ゴム成形品 |
JP6120572B2 (ja) * | 2010-08-25 | 2017-04-26 | ダイキン工業株式会社 | フッ素ゴム成形品 |
JP6132552B2 (ja) * | 2010-08-25 | 2017-05-24 | ダイキン工業株式会社 | ベルト材 |
Also Published As
Publication number | Publication date |
---|---|
US5508355A (en) | 1996-04-16 |
EP0634456A1 (en) | 1995-01-18 |
DE69322157D1 (de) | 1998-12-24 |
DE69322157T2 (de) | 1999-06-10 |
EP0634456A4 (en) | 1995-06-28 |
EP0634456B1 (en) | 1998-11-18 |
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