发明名称 |
Impact-resistant polyolefin compositions |
摘要 |
Polyolefin compositions comprising (percent by weight): 1) 55-90% of a crystalline propylene homopolymer or copolymer containing up to 15% of ethylene and/or C<SUB>4</SUB>-C<SUB>10 </SUB>alpha-olefin(s) and having values of MFR equal to or higher than 25 g/10 min; 2) 10-45% of a copolymer of ethylene with one or more C<SUB>4</SUB>-C<SUB>10 </SUB>alpha-olefin(s) containing from 10 to 40% of said C<SUB>4</SUB>-C<SUB>10 </SUB>alpha-olefin(s); said compositions having values of MFR equal to or higher than 20 g/10 min, a total content of ethylene of 20% or more, a total content of C<SUB>4</SUB>-C<SUB>10 </SUB>alpha-olefin(s) of 4.5% or more, a ratio of the total content of ethylene to the total content of C<SUB>4</SUB>-C<SUB>10 </SUB>alpha-olefin(s) of 2.3 or more, a total fraction soluble in xylene at room temperature of less than 18 wt % and an intrinsic viscosity value of the fraction soluble in xylene at room temperature of 1.7 dl/g or less.
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申请公布号 |
US2006041072(A1) |
申请公布日期 |
2006.02.23 |
申请号 |
US20040518692 |
申请日期 |
2004.12.16 |
申请人 |
BASELL POLIOLEFINE ITALIA S.P.A. |
发明人 |
PELLICONI ANTEO;ANTONELLA ANGELINI;SGARZI PAOLA |
分类号 |
C08L23/04;B29C45/00;C08F210/00;C08L23/08;C08L23/10 |
主分类号 |
C08L23/04 |
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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