| 摘要 |
1519697 Elastomer blends PHILLIPS PETROLEUM CO 13 April 1976 [14 April 1975] 15073/76 Heading C3M Elastomer blends comprise (A) 10 to 60 parts by weight of rubbery homopolybutadiene having at least 35% of the units in cis configuration, (B) 15 to 65 parts by weight of rubbery styrene/butadiene copolymer containing 15 to 30 weight per cent of styrene and (C) 25 to 75 parts by weight of homopolybutadiene having 30 to 50% of the units in vinyl configuration, said parts by weight being per 100 parts of the blend. The blends may be compounded with carbon black and extender oils.
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