发明名称 |
POLYOLEFINIC COMPOSITIONS |
摘要 |
A polymer composition comprising (per cent by weight): a) 70-84% of a crystalline propylene polymer having an amount of isotactic pentads (mmmm), measured by 13C-MNR on the fraction insoluble in xylene at 25° C., higher than 97.5 molar %; b) 8-15% of an elastomeric copolymer of ethylene and propylene, the copolymer having an amount of recurring units deriving from ethylene ranging from 25 to 50 wt % and being partially soluble in xylene at ambient temperature; the polymer fraction soluble in xylene at ambient temperature having an intrinsic viscosity value ranging from 2.5 to 3.5 dl/g; and c) 8-15% of ethylene homopolymer having an intrinsic viscosity value ranging from 1.5 to 4 dl/g; said composition having a value of melt flow rate ranging from 55 to 90 g/10 min, and the amount of hexane extractables lower than 3.5 wt %. |
申请公布号 |
KR20120061817(A) |
申请公布日期 |
2012.06.13 |
申请号 |
KR20127002773 |
申请日期 |
2010.07.20 |
申请人 |
BASELL POLIOLEFINE ITALIA S.R.L. |
发明人 |
MASSARI PAOLA;CIARAFONI MARCO;BIONDINI GISELLA;PANTALEONI ROBERTO |
分类号 |
C08L23/10;C08F297/08;C08L23/06;C08L23/16 |
主分类号 |
C08L23/10 |
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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