Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1996-01-26
1996-10-22
Seccuro, Jr., Carman J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525290, 525210, 525211, C08L 4500, C08L 2316
Patent
active
055677770
ABSTRACT:
Provided are cycloolefin copolymer compositions comprising a hydrocarbon elastomer component substantially free from a polymerizable double bond and a cycloolefin random copolymer component obtained by copolymerization of an .alpha.-olefin of at least 2 carbon atoms and a cycloolefin in the presence of said hydrocarbon elastomer component, said composition containing said hydrocarbon elastomer component in an amount of 1-50% by weight, and a method for preparing said cycloolefin copolymer compositions.
Also provided are cycloolefin copolymer compositions comprising a hydrocarbon elastomer component having a polymerizable double bond and a cycloolefin copolymer component obtained by copolymerization of an .alpha.-olefin of at least 2 carbon atoms and a cycloolefin in the presence of said hydrocarbon elastomer component, said composition containing said hydrocarbon elastomer component in an amount of 1-50% by weight.
Such cycloolefin copolymer compositions as mentioned above are excellent in transparency and mechanical strength and also excellent particularly in impact resistance.
In particular, when a cycloolefin elastomer obtained by copolymerization of an .alpha.-olefin of at least 2 carbon atoms, a cycloolefin and a non-conjugated diene of 5-20 carbon atoms is used as the above-mentioned hydrocarbon elastomer component having a polymerizable double bond, the resulting copolymer compositions are excellent particularly in transparency.
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Abe Yoshiharu
Sagane Toshihiro
Takata Toshimasa
Tsuji Yoichiro
Mitsui Petrochemical Industries Ltd.
Seccuro, Jr. Carman J.
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