发明名称 |
PROCESS FOR THE PRODUCTION OF PROPYLENE POLYMER FILMS AND LAMINATES AND PRODUCTS THUS OBTAINED |
摘要 |
Disclosed are films and laminates which are prepared by known filming or calendering processes using heterophasic propylene polymer compositions comprising: A) 10-60 parts by weight of homopolymer polypropylene having an isotactic index greater than 90, or crystalline copolymer of propylene with ethylene and/or other alpha-olefins containing more than 85% by weight of propylene and having an isotactic index greater than 85; B) 10-40 parts by weight of a copolymer containing prevailingly ethylene, which is insoluble in xylene at room temperature: C) 30-60 parts by weight of an amorphous ethylene-propylene copolymer, soluble in xylene at room temperature and containing 40-70% by weight of ethylene; said propylene polymer compositions having a ratio between the intrinsic viscosities, in tetrahydronaphthalene at 135.degree.C, of the portion soluble in xylene and of the portion insoluble in xylene at room temperature of from 0.8 to 1.2.
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申请公布号 |
CA2037264(C) |
申请公布日期 |
2000.07.18 |
申请号 |
CA19912037264 |
申请日期 |
1991.02.27 |
申请人 |
LESCA, GIUSEPPE;GIANNELLA, VINCENZO;ONGARI, SERAFINO;VEZZOLI, ANNIBALE |
发明人 |
LESCA, GIUSEPPE;GIANNELLA, VINCENZO;ONGARI, SERAFINO;VEZZOLI, ANNIBALE |
分类号 |
B29C47/06;B32B27/32;C08F297/08;C08J5/18;C08L23/00;C08L23/10;C08L23/16;(IPC1-7):B29D7/01;B29C43/24;B32B31/04;B32B31/10 |
主分类号 |
B29C47/06 |
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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