Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1989-03-22
1990-05-29
Lieberman, Allan M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
152209R, 525196, 525237, C08L 700, C08L 900, C08L 906
Patent
active
049296795
ABSTRACT:
A rubber composition for tire tread, comprising a rubber mixture composed of two kinds of styrene-butadiene copolymer rubber different from each other in the styrene content and the vinyl bond content in butadiene, polybutadiene rubber, natural rubber and/or synthetic polyisoprene rubber.
REFERENCES:
patent: 4721719 (1988-01-01), Odar et al.
patent: 4748168 (1988-05-01), Kawakami et al.
patent: 4822844 (1989-04-01), Kawakami et al.
patent: 4824900 (1989-04-01), Sakurai
Akita Shuichi
Kikuchi Yasushi
Oishi Hideyuki
Suzuki Fumitoshi
Lieberman Allan M.
Nippon Zeon Co. Ltd.
The Yokohama Rubber Co. Ltd.
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