发明名称 |
PROPYLENE BLOCK COPOLYMER, PROCESS FOR PRODUCING THE SAME, AND MODIFIED COPOLYMER PRODUCED THEREFROM |
摘要 |
<p>A propylene block copolymer composed of 50-95 wt.% of a specified propylene polymer block (A) comprising either propylene units only or a combination of propylene units with at most 4 wt.% of C2-C8 olefin units and 50-5 wt.% of an ethylene-propylene copolymer block (B) containing 20-90 wt.% of ethylene units, wherein at least either block (A) or block (B) contains 0.001-15.0 wt.% of diolefinic units and which has a reduced viscosity of 0.01-30 dl/g in 0.05 g/dl of decalin at 135 DEG C; a process for producing the same; and a product of hydrogenation thereof and a modified copolymer produced by introducing functional groups into at least 5 mole % of the unsaturations of the above block copolymer. The above block copolymer is suppressed in gel formation, has an excellent balance between rigidity and impact resistance and a good moldability, and contains unsaturations available for modification. The above modified copolymer is rich in adhesion, printability, hydrophilicity, capability of polymer modification, antistatic effect, and flame retardancy.</p> |
申请公布号 |
EP0686649(A1) |
申请公布日期 |
1995.12.13 |
申请号 |
EP19940907675 |
申请日期 |
1994.02.24 |
申请人 |
IDEMITSU KOSAN COMPANY LIMITED |
发明人 |
TAZAKI, TOSHINORI;MACHIDA, SHUJI |
分类号 |
C08F4/62;C08F8/04;C08F297/06;C08F297/08;(IPC1-7):C08F210/16;C08F8/00 |
主分类号 |
C08F4/62 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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