发明名称 |
Propylen-Ethylen-Buten-Blockcopolymer und Formkörper daraus |
摘要 |
A propylene-ethylene-butene block copolymer is provided which includes from 60 to 85% by weight of a polypropylene portion and from 15 to 40% by weight of a propylene-ethylene-butene random copolymer portion, wherein the copolymer satisfies the requirements (1) and (2) given below. In addition, a molded article including such a propylene-ethylene-butene block copolymer is provided. (1) The random copolymer portion includes a propylene-ethylene random copolymer component (EP) and a propylene-ethylene-butene random copolymer component (EPB) and the copolymer component (EP) has an intrinsic viscosity of from 1.5 to 8 dl/g and an ethylene unit content of from 20 to 50% by weight, and the copolymer component (EPB) has an intrinsic viscosity of from 0.5 to 8 dl/g, an ethylene unit content of from 47 to 77% by weight and a butene unit component of from 3 to 33% by weight and the total of the ethylene unit content and the butene unit content is from 50 to 80% by weight. (2): The propylene-ethylene-butene block copolymer has a melt flow rate of from 5 to 120 g/10 min. |
申请公布号 |
DE112006002284(T5) |
申请公布日期 |
2008.07.17 |
申请号 |
DE20061102284T |
申请日期 |
2006.08.29 |
申请人 |
SUMITOMO CHEMICAL CO. LTD. |
发明人 |
OSHIMA, HIDEKI;SANADA, TAKASHI;WAKAMATSU, KAZUKI |
分类号 |
C08F297/08 |
主分类号 |
C08F297/08 |
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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