Inventor
TAKAO HIROYOSHI
JP18 patents
Patents
18 patentsUS5015692AMay 14, 1991
Process for preparing modified diene polymer rubbers
SUMITOMO CHEMICAL CO22 citations92
US4957976ASep 18, 1990
Process for preparing diene polymer rubbers
SUMITOMO CHEMICAL CO30 citations89
US4537936AAug 27, 1985
Diene rubber composition, method of preparing the same and tire employing said composition
SUMITOMO CHEMICAL CO19 citations82
US4820774AApr 11, 1989
Elastomer composition
SUMITOMO CHEMICAL CO21 citations81
US4647614AMar 3, 1987
Diene elastomer compositions
SUMITOMO CHEMICAL CO7 citations74
US4436873AMar 13, 1984
Conjugated diene block polymer and process for preparing the same
SUMITOMO CHEMICAL CO11 citations74
US4407989AOct 4, 1983
Process for the separation treatment of polymer from polymer solution
SUMITOMO CHEMICAL CO9 citations74
US5179156AJan 12, 1993
Rubber composition
SUMITOMO CHEMICAL CO10 citations73
US5118773AJun 2, 1992
Rubber composition
SUMITOMO CHEMICAL CO18 citations73
US4885338ADec 5, 1989
Modified diene polymer rubbers
SUMITOMO CHEMICAL CO9 citations73
US4889881ADec 26, 1989
Ethylene-α-olefin vulcanized rubber composition
SUMITOMO CHEMICAL CO9 citations72
US4918142AApr 17, 1990
Rubber composition of tire tread containing block copolymer coupled with dicarboxylic acid ester
SUMITOMO CHEMICAL CO8 citations71
US5037891AAug 6, 1991
Modified ethylene-α-olefin copolymer rubber and a process for producing the same
SUMITOMO CHEMICAL CO5 citations63
US4987199AJan 22, 1991
Ethylene-acrylic acid ester copolymer and process for producing the same
SUMITOMO CHEMICAL CO5 citations62
US4942223AJul 17, 1990
Process for separating a polymer from a solution containing the same
SUMITOMO CHEMICAL CO3 citations57
US4121032AOct 17, 1978
Process for preparing alternating copolymer of conjugated vinyl compound and olefinic unsaturated compound with oxygen and boron compound
SUMITOMO CHEMICAL CO4 citations56
US4812527AMar 14, 1989
Rubber composition for tire treads containing dicarboxylic acid diester coupled block polymers
SUMITOMO CHEMICAL CO1 citations52
US3989882ANov 2, 1976
Process for preparing an alternating copolymer of a conjugated vinyl compound and an olefinic unsaturated compound
SUMITOMO CHEMICAL CO1 citations45