发明名称 |
Melt fracture reduction |
摘要 |
The extrusion of thermoplastic polyolefin, especially linear low density polyethylene (LLDPE) is improved by the use of a processing additive comprising a blend of a thermoplastic acrylic polymer and a fluorocarbon polymer. In a preferred embodiment, the processing additive is a homogeneous blend of a thermoplastic styrene/methyl methacrylate polymer and a thermoplastic copolymer of vinylidene fluoride and hexafluoropropylene. The polyolefin extrudates produced according to this invention have reduced levels of melt fracture when extruded in conventional polymer extrusion equipment.
|
申请公布号 |
US5854352(A) |
申请公布日期 |
1998.12.29 |
申请号 |
US19970803319 |
申请日期 |
1997.02.21 |
申请人 |
NOVA CHEMICAL LTD. |
发明人 |
CHISHOLM, P. SCOTT;TIKUISIS, TONY;GOYAL, SHIVENDRA KUMAR;CHECKNITA, DOUGLAS;BOHNET, NICK KLAUS KURT |
分类号 |
C08L23/02;C08L25/14;C08L27/12;C08L33/12;(IPC1-7):C08L27/12 |
主分类号 |
C08L23/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|