公开(公告)号：WO2007100436A1

公开(公告)日：2007-09-07

申请号：PCT/US2007/002810

申请日：2007-02-02

Applicant: NOVOLEN TECHNOLOGY HOLDING C.V. ,  MAVRIDIS, Harilaos ,  SHANKERNARAYNAN, Manivakkam, J.

Inventor： MAVRIDIS, Harilaos ,  SHANKERNARAYNAN, Manivakkam, J.

IPC: C08F10/06

CPC classification number: C08F10/06 ,  C08F110/06 ,  C08L23/12 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2308/00 ,  C08F2/001 ,  C08L2666/06 ,  C08F2500/11 ,  C08F2500/05

Abstract: A method for producing a polypropylene-containing composition which includes (a) polymerizing a first quantity of propylene in a first reaction zone in the presence of a first polymerization catalyst to provide a first quantity of polypropylene having a weight- average molecular weight M w,A ; (b) polymerizing a second quantity of propylene optionally mixed with a minor amount of one or more olefins other than propylene in a second reaction zone in the presence of a second polymerization catalyst to provide a second quantity of polypropylene comprising a polypropylene homopolymer or random copolymer and having a weight-average molecular weight M w,B ; and (c) combining the first quantity of polypropylene with the second quantity of polypropylene to form a bimodal polypropylene; wherein the percent by weight of the first quantity of polypropylene in the bimodal polypropylene composition is equal to or greater than 65 percent, and the ratio M w,B /M w,A is at least about 2.

Abstract translation: 一种制备含聚丙烯的组合物的方法，其包括：（a）在第一聚合催化剂存在下，在第一反应区中聚合第一量的丙烯，以提供第一量的重均分子量M _{W，A ; （b）在第二聚合催化剂的存在下，在第二反应区中聚合任选与少量丙烯以外的一种或多种烯烃混合的第二量丙烯，以提供第二量的包含聚丙烯均聚物或无规共聚物的聚丙烯 并且具有重均分子量M w，B; 和（c）将第一量的聚丙烯与第二量的聚丙烯组合以形成双峰聚丙烯; 其中所述双峰聚丙烯组合物中的所述第一量的聚丙烯的重量百分比等于或大于65％，并且所述比例M W，B / M W，A / >至少约2。}