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1. 发明专利

JPH1025379A VULCANIZABLE FLAME RETARDANT RUBBER COMPOSITION 失效
公开(公告)号：JPH1025379A
公开(公告)日：1998-01-27
申请号：JP18213796
申请日：1996-07-11
申请人： MITSUI PETROCHEMICAL IND
发明人： KIKUCHI YOSHIHARU , KAMEDA HIROSHI , NONAKA SHUICHI
IPC分类号： C08K3/32 , C08K5/05 , C08K5/053 , C08K5/34 , C08K5/3467 , C08L23/16
摘要： PROBLEM TO BE SOLVED: To obtain a vulcanizable flame retardant rubber composition capable of being formed into a vulcanized rubber molded product without containing a halogen and having a strength sufficient to be used in a practical use and an excellent flame resistance. SOLUTION: This vulcanizable flame retardant rubber comprises 100 pts.wt. copolymer rubber (A) of ethylene, an α-olefin and a nonconjugated polyene, 2-30 pts.wt. ammonium polyphosphate (B), 1-20 pts.wt. melamine (C) and 1-10 pts.wt. pentaerythritol (D). Moreover, the rubber (A) is usually obtained by using a 3-20C α-olefin as the αolefin, regulating a molar ratio of ethylene/α- olefin to (55/45) to (95/5) and setting an intrinsic viscosity measured in decalin at 135 deg.C to 0.8-4.0dl/g.

2. 发明专利

JPH06271697A SPONGE RUBBER ROLL 失效
公开(公告)号：JPH06271697A
公开(公告)日：1994-09-27
申请号：JP20561492
申请日：1992-07-31
申请人： MITSUI PETROCHEMICAL IND
发明人： OKADA KEIJI , TOJO TETSUO , KIKUCHI YOSHIHARU
IPC分类号： B29C47/02 , B29K23/00 , B29K105/04 , B29L31/32 , C08F8/00 , C08F210/00 , C08J3/24 , C08J9/04
摘要： PURPOSE:To provide a sponge rubber roller which has excellent surface smoothness, easily controllable electrical resistance, thus is useful in OA appliances by vulcanizing and foaming a specific green rubber composition. CONSTITUTION:A green rubber composition comprising (A) a chlorinated ethylene-alpha-olefin copolymer where the alpha-olefin is preferably of 3 to 10 carbon atoms, most preferably 1-butene, the copolymerization molar ratio of ethylene to a-olefin is 75/25 to 95/5, chlorine content is 20 to 40wt.%, and the Mooney viscosity [ML1+4 (121 deg.C)] is 10 to 190, (B) a vulcanizer such as triazine-2,4,6-trithiol, (C) a foaming agent such as sodium hydrogen carbonate, is vulcanized and foamed in a can to give the objective molded foam.

3. 发明专利

JPH06270158A MANUFACTURE OF SPONGE 失效
公开(公告)号：JPH06270158A
公开(公告)日：1994-09-27
申请号：JP20561392
申请日：1992-07-31
申请人： MITSUI PETROCHEMICAL IND
发明人： OKADA KEIJI , TOJO TETSUO , KIKUCHI YOSHIHARU
IPC分类号： B29C33/02 , B29C35/02 , B29K21/00 , B29K105/04 , B29K105/24
摘要： PURPOSE:To enable a sponge with an arbitrarily cross-sectional shape to be manufactured in a simple operation that has a fine sponge skin and small uniform foamed cells and also has good shape retainability during the foaming period by vulcanizing and foaming in use of a vulcanizing can unvulcanized compounded rubber containing a vulcanizing agent and foaming agent that are put into a mold. CONSTITUTION:Sponge forming unvulcanized compounded rubber is made such that, e.g. raw material rubber, filling agent, softening agent, age resistor, etc., are kneaded at a temperature of 80-170 deg.C for 3-10min. by the use of a kneading machine such as Bandury mixer or the like. In use of rollers such as open rollers, a vulcanizing agent and foaming agent, by additionally blending 3 vulcanizing accelerator, vulcanizing assistant or foaming assistant thereto as required, are kneaded at a temperature 30-80 deg.C for 5-30min., and then discharged in separation for making unvulcanizing compounded rubber being in a shape of ribbon or sheet. By vulcanizing and foaming the unvulcanized compounded rubber made in this manner with inmold vulcanizing can vulcanizing method in use of vulcanizing can, a vulcanized rubber sponge is manufactured.

4. 发明专利

JPH02208335A RAPIDLY VULCANIZABLE RUBBERLIKE COMPOSITION 失效
公开(公告)号：JPH02208335A
公开(公告)日：1990-08-17
申请号：JP2872289
申请日：1989-02-09
申请人： MITSUI PETROCHEMICAL IND
发明人： OKADA KEIJI , TOJO TETSUO , KIKUCHI YOSHIHARU
IPC分类号： C08K5/17 , C08K5/32 , C08K5/36 , C08L15/02 , C08L23/26 , C08L23/28
摘要： PURPOSE:To obtain the title composition which has an improved vulcanization rate, produces a good plateau effect in a vulcanization curve and can give a vulcanizate of good heat resistance by adding a specified amine and a specified aromatic dinitro compound as a vulcanization aid to a chlororubber containing a triazine derivative as a vulcanizer. CONSTITUTION:A rapidly vulcanizable rubberlike composition is obtained by mixing a chlororubber (A) (e.g. a chlorinated ethylene/alpha-olefin copolymer of a chlorine content of 5-45wt.%) with a triazinethiol (B) of formula I (wherein R1 and R2 are each H, an alkyl or an aryl) as a vulcanizer, and a vulcanization aid (C) comprising an amine or its salt (C-1) of formula II (wherein R3, R4 and R5 are each H, an alkyl, a cycloalkyl or an aryl), e.g. benzoic acid/ dicyclohexylamine salt, and an aromatic dinitro compound (C-2) of formula III (wherein R6 is H, an alkyl, a hydroxy, an alkoxy or an amino), e.g. 2,4- dinitrophenol. The contents of the respective components are such that 0.001-0.025mol of B, 0.002-0.075mol of C-1 and 0.0002-0.02mol of C-2 are present per 100g of A.

5. 发明专利

JPH01263038A RUBBER BELT 失效
公开(公告)号：JPH01263038A
公开(公告)日：1989-10-19
申请号：JP9389788
申请日：1988-04-15
申请人： MITSUI PETROCHEMICAL IND
发明人： OKADA KEIJI , TOJO TETSUO , KIKUCHI YOSHIHARU , NAKAHAMA HIDETOKI
IPC分类号： F16G1/06 , B29D29/00
摘要： PURPOSE:To obtain a rubber belt having excellent thermal ageing resistance and small variation in its elasticity by forming it of a molded piece vulcanized from chlorinated ethylene/alpha-olefin copolymer rubber having specific chlorine content and Mooney viscosity. CONSTITUTION:A rubber hose formed of a molded piece vulcanized from chlorinated ethylene/alpha-olefin copolymer rubber having 20-40wt.% of chlorine content and 10-190 of Mooney viscosity (ML1+4(121 deg.C)) is provided. As a method of vulcanizing the hose, triazine vulcanization, organic peroxide vulcanization, etc. are effective. A vulcanizer is mixed at the ratio of 1X10 -2.5X10 mold per 100g of the copolymer rubber. If the mixing amount of the vulcanizer is less than the above range, the vulcanized material having preferable rubber elasticity cannot be obtained, while if it is larger than the above range, its elongation is reduced. The using amount of the organic peroxide is selected normally to 3X10 -5X10 moles per 100 pts.wt. of the copolymer rubber. Since the molded piece vulcanized from the copolymer rubber is employed, the hose having excellent thermal ageing resistance, and small variation in its elasticity from low to high temperatures can be obtained.

6. 发明专利

JPH06246877A RUBBER LAMINATE 失效
公开(公告)号：JPH06246877A
公开(公告)日：1994-09-06
申请号：JP3991793
申请日：1993-03-01
申请人： MITSUI PETROCHEMICAL IND
发明人： MATSUMOTO MUNEYUKI , TOJO TETSUO , KIKUCHI YOSHIHARU , UCHIUMI AKIYOSHI
IPC分类号： B32B25/04 , B32B27/32 , C08K3/04 , C08K5/06 , C08K5/36 , C08L23/08 , C08L23/28
摘要： PURPOSE:To obtain a rubber laminate, which has excellent interfacial adhesion, thermal aging resistance, low-temperature weatherability and resistance to oil. CONSTITUTION:The rubber laminate concerned is a specific chlorinated ethylen.alpha-olefin copolymer rubber consisting of a layer made of copolymer rubber (A) containing at least one kind of matter selected from the group consisting of sulfur, polysulfide compound or thiourea compound and a layer made of ethylene.alpha-olefin copolymer rubber (B) and its valcanized matter.

7. 发明专利

JPH03296506A CHLORINATED ETHYLENE-ALPHA-OLEFIN COPOLYMER RUBBER AND COMPOSITION CONTAINING SAME 失效
公开(公告)号：JPH03296506A
公开(公告)日：1991-12-27
申请号：JP9939290
申请日：1990-04-17
申请人： MITSUI PETROCHEMICAL IND
发明人： TOJO TETSUO , OKADA KEIJI , KIKUCHI YOSHIHARU
IPC分类号： C08J3/24 , C08F8/20 , C08F210/00 , C08F210/16 , C08K3/04 , C08K3/34 , C08K3/36 , C08K5/00 , C08K5/34 , C08K5/3492 , C08L23/00 , C08L23/26 , C08L23/28
摘要： PURPOSE:To prepare the title rubber excellent in processability, heat resistance, and rubber elasticity by polymerizing a chlorinated ethylene with an alpha-olefin in such a manner that the resulting copolymer rubber contains chlorine, i.e., one combined with a primary carbon atom, and one combined with a tertiary carbon atom, each in a specified amt., and has a specified Mooney viscosity. CONSTITUTION:A chlorinated ethylene is copolymerized with an alpha-olefin in such a manner that the resulting chlorinated ethylene.-alpha-olefin copolymer rubber contains 20-40wt.% chlorine, 0.6wt.% or higher chlorine combined with a primary carbon atom, and 1.6wt.% or lower chlorine combined with a tertiary carbon atom and has Mooney viscosity [ML1+4(121 deg.C)] of 10-190. The obtd. rubber is excellent in processability, heat resistance, and rubber elasticity and useful for extending the life of a rubber product.

8. 发明专利

JPH03258847A VULCANIZABLE RUBBER COMPOSITION 失效
公开(公告)号：JPH03258847A
公开(公告)日：1991-11-19
申请号：JP5382990
申请日：1990-03-07
申请人： MITSUI PETROCHEMICAL IND
发明人： TOJO TETSUO , KIKUCHI YOSHIHARU , OKADA KEIJI
IPC分类号： C08L23/28 , C08L23/26 , C08L53/00 , C08L53/02
摘要： PURPOSE:To obtain a vulcanizable rubber composition having excellent rubber elasticity, thermal aging resistance, oil resistance, etc., and suitable as an electrical insulation material, automobile parts, etc., by compounding a specific chlorinated ethylene.alpha-olefin copolymer rubber with a specific block copolymer at a specific ratio. CONSTITUTION:The objective composition can be produced by compounding (A) a chlorinated ethylene.alpha-olefin copolymer rubber having a chlorine content of 20-40wt.% and a Mooney viscosity of 10-190 and produced by the chlorination of an ethylene.alpha-olefin copolymer composed of a 3-10C alpha-olefin and having an ethylene/alpha-olefin molar ratio of 75/25 to 95/5 and (B) a styrene/ ethylene.butene/styrene block copolymer having a specific gravity of 0.89-0.93 and a weight ratio of the styrene unit to the ethylene-butene unit of 20/80-35/65 at a weight ratio (A/B) of 95/5 to 70/30.

9. 发明专利

JPH03258846A VULCANIZABLE RUBBER COMPOSITION 失效
公开(公告)号：JPH03258846A
公开(公告)日：1991-11-19
申请号：JP5382890
申请日：1990-03-07
申请人： MITSUI PETROCHEMICAL IND
发明人： TOJO TETSUO , KIKUCHI YOSHIHARU , OKADA KEIJI
IPC分类号： C08L23/28 , C08L23/26
摘要： PURPOSE:To obtain a vulcanizable rubber composition having excellent thermal aging resistance, oil resistance, etc., and suitable as an electrical insulation material, automobile parts, etc., by compounding a specific chlorinated ethylene.alpha-olefin copolymer rubber with a chlorinated polyethylene at a specific ratio. CONSTITUTION:The objective composition can be produced by compounding (A) a chlorinated ethylene.alpha-olefin copolymer rubber having a chlorine content of 20-40wt.% and a Mooney viscosity of 10-190 and produced by the chlorination of an ethylene.alpha-olefin copolymer composed of a 3-10C alpha-olefin and having an ethylene/alpha-olefin molar ratio of 75/25 to 95/5 and (B) a chlorinated polyethylene having a chlorine content of 35-43wt.% and a Mooney viscosity of 10-190 at a weight ratio (A/B) of 95/5 to 20/80.

10. 发明专利

JPH08302087A RUBBER WRAPPING FILM AND RUBBER BALE 失效
公开(公告)号：JPH08302087A
公开(公告)日：1996-11-19
申请号：JP11455695
申请日：1995-05-12
申请人： MITSUI PETROCHEMICAL IND
发明人： OKADA KEIJI , KIKUCHI YOSHIHARU , SHIRATA TAKASHI
IPC分类号： B65D57/00 , C08F210/16 , C08J3/00 , C08J5/18 , C08L23/08 , C08L23/16
摘要： PURPOSE: To obtain the subject film excellent in mechanical strength, releasability and dispersibility in ethylene-α-olefin copolymer rubber, and useful for rubber bales, etc., by molding a random copolymer of ethylene and an α- olefin with specific number of carbon atoms. CONSTITUTION: This rubber wrapping film useful for rubber bales, etc., and having the above-mentioned advantages is obtained by incorporating an ethylene-α-olefin random copolymer with 0.01-1.0wt.% of an antiblocking agent and 0.01-1.0wt.% of a slip agent followed by sufficient mixing in a Henschel mixer and then molding the mixture into a film using e.g. an inflation molding machine. The ethylene-α-olefin random copolymer 50-100 deg.C in melting point and 0.1-50g/10min in the MFR at 190 deg.C under a load of 2.16kg is prepared by random copolymerization between ethylene and a 4-20C α-olefin (e.g. butene-1) at the molar ratio of the ethylene unit to the a α-olefin unit of (80:20) to (95:5).

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