专利检索 ap:("Stephen Brown" OR "Christopher Dobbin" OR "Clayton Elston" OR "Norman Aubee" OR "Gilbert Arnould" OR "Sarah Marshall" OR "Lawrence Kale" OR "Mark Weber") AND inv:"Clayton Elston" 第 1 页

1.

发明申请
Heterogeneous/homogeneous copolymer 审中-公开

公开(公告)号：US20060041074A1

公开(公告)日：2006-02-23

申请号：US11257278

申请日：2005-10-24

申请人： Stephen Brown , Christopher Dobbin , Clayton Elston , Norman Aubee , Gilbert Arnould , Sarah Marshall , Lawrence Kale , Mark Weber

发明人： Stephen Brown , Christopher Dobbin , Clayton Elston , Norman Aubee , Gilbert Arnould , Sarah Marshall , Lawrence Kale , Mark Weber

IPC分类号： C08L23/04

CPC分类号： C08L23/0815 , C08L23/06 , C08L2205/02 , C08L2205/03 , C08L2314/06 , Y10T428/1352 , Y10T428/31855 , Y10T428/31909 , C08L2666/06

摘要： Novel polyethylene copolymer compositions prepared with a homogeneous catalyst system are characterized by having a unique high molecular weight, low comonomer (high density) fraction. These heterogeneous/homogeneous compositions may be prepared using a solution polymerization process in which the polymerization reactor contains a gradient in temperature, catalyst concentration or monomer concentration. The heterogeneous/homogeneous compositions of this invention are easily processed into films having excellent tear strengths and low hexane extractables.