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公开(公告)号：US5028662A
公开(公告)日：1991-07-02
申请号：US358996
申请日：1989-05-26
申请人： Eiji Sezaki , Masatoshi Isono , Masatoshi Akami , Hisafumi Endo
发明人： Eiji Sezaki , Masatoshi Isono , Masatoshi Akami , Hisafumi Endo
CPC分类号： C08L23/12 , C08L11/00 , C08L23/10 , C08L23/283 , C08L2205/02 , C08L51/06
摘要： A thermoplastic elastomer composition prepared by dynamically vulcanizing a composition comprised (A) polyolefin 5-50 wt. parts, (B) brominated butyl rubber 5-50 wt. parts, (C) polychloroprene rubber 5-50 wt. parts and (D) process oil 10-50 wt. parts in the presence of peroxide is disclosed.
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公开(公告)号：US5081179A
公开(公告)日：1992-01-14
申请号：US425521
申请日：1989-10-23
申请人： Eiji Sezaki , Yoshikazu Murakami , Shuji Shimada , Masaaki Saito , Masatoshi Akami , Hisafumi Endo
发明人： Eiji Sezaki , Yoshikazu Murakami , Shuji Shimada , Masaaki Saito , Masatoshi Akami , Hisafumi Endo
IPC分类号： C08K5/14 , C08L23/10 , C08L23/12 , C08L23/16 , C08L23/20 , C08L23/26 , C08L23/28 , C08L53/00 , C08L89/00 , C08L91/00
CPC分类号： C08L23/10 , C08L23/16 , C08L23/283 , C08L53/00 , C08K2201/008 , C08K3/22 , C08K5/0016 , C08L2205/02 , C08L23/20 , C08L2312/00
摘要： A thermoplastic elastomer composition comprising (A) 10-90 parts by weight of crystalline polypropylene, (B) 10-90 parts by weight of brominated butyl rubber, (C) 10-120 parts by weight of olefinic copolymer rubber to 100 parts by weight of (A)+(B), and (D) 10-150 parts by weight of process oil as plasticizer to 100 parts by weight (A)+(B), all of which are dynamically vulcanized in the presence of a peroxide crosslinking agent.The thermoplastic elastomer composition of this invention has a high gel ratio or gel content in part because brominated butyl rubber is vulcanized with peroxide. The composition has good elasticity, high mechanical strength, low compressively permanent set, excellent long-term heat stability, moldability, and gas impermeability and high damping characteristic.
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