Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1988-12-20
1990-08-21
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...
525217, 525218, 525237, 525 99, 180312, C08L 700, C08L 906
Patent
active
049507192
ABSTRACT:
A rubber composition which gives a rubber vibration insulator having excellent low-temperature properties comprises as a main rubber component a blend composed of (a) 10 to 90 parts by weight of a tapered styrene/butadiene copolymer rubber which has an average bound styrene content of 10 to 40% by weight and a 1,2-bond content in the butadiene portion of at least 50% by weight and in which the bound styrene content increases or decreases in one direction along the copolymer molecular chain and (b) 90 to 10 parts by weight of natural rubber and/or synthetic polyisoprene rubber.
REFERENCES:
patent: 4391942 (1983-07-01), Nakauchi et al.
patent: 4626568 (1986-12-01), Sato et al.
patent: 4810746 (1989-03-01), Tsutsumi et al.
patent: 4848511 (1989-07-01), Ohyama et al.
Oyama Tetsuo
Shibahara Akihiro
Suzuki Fumitoshi
Ueda Akio
Lieberman Allan M.
Nippon Zeon Co. Ltd.
Tokai Rubber Industries Ltd.
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