发明名称 |
Production of polypropylene having improved properties |
摘要 |
A process for producing polypropylene having increased melt strength, the process comprising irradiating polypropylene which has been polymerised using a Ziegler-Natta catalyst with an electron beam having an energy of at least 5 MeV and a radiation dose of at least 10 kGray and mechanically processing the irradiated polypropylene to form long chain branches on the polypropylene molecules, whereby the polypropylene has a melt flow index (MFI) of at least 25 dg/min.
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申请公布号 |
US7169827(B2) |
申请公布日期 |
2007.01.30 |
申请号 |
US20030332160 |
申请日期 |
2003.10.17 |
申请人 |
TOTAL PETROCHEMICALS RESEARCH FELUY |
发明人 |
DEBRAS GUY;DUPIRE MARC;MICHEL JACQUES |
分类号 |
C08J3/28;C08F8/50;C08F10/06;C08F110/06;C08F255/02;C08F297/08;D01F6/06 |
主分类号 |
C08J3/28 |
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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