Title:
A PROCESS FOR THE PREPARATION OF HIGH PERFORMANCE POLYPROPYLENE
Document Type and Number:
WIPO Patent Application WO/2007/124680
Kind Code:
A2
Abstract:
A process for the preparation of high performance polypropylene is provided,
in which the propylene polymer with broad molecular weight distribution is prepared
in two or more stages with different H2 level in various stages in the
presence of the catalysts with high activity and high stereospecificity. The
stereospecificity of the catalytic active centres is regulated or controlled
in order to improve the heterogeneity of molecular chain stereo-regularity,that
is, in order to make the lower molecular weight portion of the polymer have higher
stereo-regularity and make the higher molecular weight portion of the polymer
have lower stereo-regularity.
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Inventors:
SONG, Wenbo (No. 14, Beisanhuan East RoadChaoyang District, Beijing 3, 100013, CN)
宋文波 (中国北京市朝阳区北三环东路14号, Beijing 3, 100013, CN)
GUO, Meifang (N0. 14 Beisanhuan East Road, Chaoyang District, Beijing 3, 100013, CN)
郭梅芳 (中国北京市朝阳区北三环东路14号, Beijing 3, 100013, CN)
QIAO, Jinliang (N0. 14 Beisanhuan East Road, Chaoyang District, Beijing 3, 100013, CN)
乔金梁 (中国北京市朝阳区北三环东路14号, Beijing 3, 100013, CN)
宋文波 (中国北京市朝阳区北三环东路14号, Beijing 3, 100013, CN)
GUO, Meifang (N0. 14 Beisanhuan East Road, Chaoyang District, Beijing 3, 100013, CN)
郭梅芳 (中国北京市朝阳区北三环东路14号, Beijing 3, 100013, CN)
QIAO, Jinliang (N0. 14 Beisanhuan East Road, Chaoyang District, Beijing 3, 100013, CN)
乔金梁 (中国北京市朝阳区北三环东路14号, Beijing 3, 100013, CN)
Application Number:
CN2007/001315
Publication Date:
November 08, 2007
Filing Date:
April 20, 2007
Export Citation:
Assignee:
CHINA PETROLEUM & CHEMICAL CORPORATION (No. 6A, Huixin East StreetChaoyang District, Beijing 9, 100029, CN)
中国石油化工股份有限公司 (中国北京市朝阳区惠新东街甲6号, Beijing 9, 100029, CN)
BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION (N0. 14 Beisanhuan East Road, Chaoyang District, Beijing 3, 100013, CN)
中国石油化工股份有限公司北京化工研究院 (中国北京市朝阳区北三环东路14号, Beijing 3, 100013, CN)
SONG, Wenbo (No. 14, Beisanhuan East RoadChaoyang District, Beijing 3, 100013, CN)
宋文波 (中国北京市朝阳区北三环东路14号, Beijing 3, 100013, CN)
GUO, Meifang (N0. 14 Beisanhuan East Road, Chaoyang District, Beijing 3, 100013, CN)
郭梅芳 (中国北京市朝阳区北三环东路14号, Beijing 3, 100013, CN)
中国石油化工股份有限公司 (中国北京市朝阳区惠新东街甲6号, Beijing 9, 100029, CN)
BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION (N0. 14 Beisanhuan East Road, Chaoyang District, Beijing 3, 100013, CN)
中国石油化工股份有限公司北京化工研究院 (中国北京市朝阳区北三环东路14号, Beijing 3, 100013, CN)
SONG, Wenbo (No. 14, Beisanhuan East RoadChaoyang District, Beijing 3, 100013, CN)
宋文波 (中国北京市朝阳区北三环东路14号, Beijing 3, 100013, CN)
GUO, Meifang (N0. 14 Beisanhuan East Road, Chaoyang District, Beijing 3, 100013, CN)
郭梅芳 (中国北京市朝阳区北三环东路14号, Beijing 3, 100013, CN)
International Classes:
C08F10/06; C08F2/00
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (8th Floor, Vantone New World Plaza2 Fuchengmenwai Street, Beijing 7, 100037, CN)
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