发明名称 |
Polypropylene resin composition |
摘要 |
A polypropylene resin composition is herein disclosed which is obtainable by blending (A) 100 parts by weight of a polypropylene resin comprising (a) 100 to 20% by weight of a homopolymer of propylene and/or a propylene copolymer containing 4% by weight or less of another olefin unit in which in a pentad fraction by 13C-NMR, [rrrr/(1-mmmm)]x100 is in the range of 20 to 60%, a Tm measured by a DSC is 150 DEG C. or more, and a melt enthalpy is 100 J/g or less, and (b) 0 to 80% by weight of a propylene copolymer containing 10 to 80% by weight of an olefin unit other than propylene, with (B) 0.01 to 5 parts by weight of an octyltin salt of a fatty acid, an alkylenebisfatty acid amide, a fatty acid ester of a polyvalent alcohol, or a metal salt of an aliphatic monocarboxylic acid. The employment of this polypropylene resin composition permits, under a good moldability by the calender molding machine, the manufacture of films and sheets having less thickness unevenness, excellent appearance and heat resistance and such flexibility as in molded articles of a plastic polyvinyl chloride.
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申请公布号 |
US5955524(A) |
申请公布日期 |
1999.09.21 |
申请号 |
US19960651642 |
申请日期 |
1996.05.22 |
申请人 |
IDEMITSU PETROCHEMICAL CO., LTD. |
发明人 |
AZUMA, YUTAKA;TAMURA, SATOSHI;HIRAMATSU, TSUNENOSUKE;UMEMOTO, KEIGO;KANO, TOSHIO;KONDO, MASAMICHI |
分类号 |
C08K5/103;C08K5/20;C08K5/57;C08L23/10;C08L23/12;C08L23/16;(IPC1-7):C08J5/00 |
主分类号 |
C08K5/103 |
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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