发明授权
US6153710A Preactivated catalyst for olefin (CO)polymer, catalyst for olefin
(CO)polymerization, olefin (CO)polymer composition, and process for
producing the same
失效
烯烃（CO）聚合物预活化催化剂，烯烃（CO）聚合催化剂，烯烃（CO））聚合物组合物及其制备方法
- 专利标题： Preactivated catalyst for olefin (CO)polymer, catalyst for olefin (CO)polymerization, olefin (CO)polymer composition, and process for producing the same
- 专利标题（中）： 烯烃（CO）聚合物预活化催化剂，烯烃（CO）聚合催化剂，烯烃（CO））聚合物组合物及其制备方法
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申请号： US155189申请日： 1998-09-22
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公开(公告)号： US6153710A公开(公告)日： 2000-11-28
- 发明人: Jun Saito , Shingo Kikukawa , Tsutomu Ushioda , Akiko Kageyama , Mototake Tsutsui
- 申请人： Jun Saito , Shingo Kikukawa , Tsutomu Ushioda , Akiko Kageyama , Mototake Tsutsui
- 申请人地址： JPX Osaka
- 专利权人： Chisso Corporation
- 当前专利权人： Chisso Corporation
- 当前专利权人地址： JPX Osaka
- 优先权： JPX9-34011 19970218; JPX9-34012 19970218
- 主分类号： C08F2/00
- IPC分类号： C08F2/00 ; C08F4/619 ; C08F4/642 ; C08F4/651 ; C08F4/655 ; C08F10/00 ; C08F110/06 ; C08F210/06 ; C08L23/04 ; C08L23/08 ; C08L23/10 ; C08L23/16 ; B01J31/06
摘要：
An olefin (co)polymer composition comprising, as major components, (a) 0.01 to 5 parts by weight of an olefin (co)polymer having an intrinsic viscosity [.eta..sub.a ] as measured in 135.degree. C. tetralin of 15 to 100 dl/g and (b) 100 parts by weight of an olefin (co)polymer obtained by using a metallocene catalyst and having an intrinsic viscosity [.eta..sub.b ] as measured in 135.degree. C. tetralin of 0.2 to 10 dl/g. When polyethylene having a high degree of polymerization is produced before a so-called metallocene catalyst is used to polymerize, e.g., propylene in the presence of the polyethylene as a component of a catalyst composition, a polypropylene composition having a high melt tension and a high crystallization temperature is produced.
公开/授权文献
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