发明名称 |
Opaque polymeric films cavitated with PBT and polycarbonate |
摘要 |
A method for producing an opaque polymeric film comprises:(a) extruding a base layer comprising a polymeric matrix and at least one cavitating agent;(b) coextruding at least one additional layer on at least one side of the base layer;(c) cooling the coextruded multi-layer film; and then(d) orienting the film in at least the machine direction (MD);wherein at least said base layer contains polybutylene terephthalate (PBT) and polycarbonate.
|
申请公布号 |
US6500533(B1) |
申请公布日期 |
2002.12.31 |
申请号 |
US20000500608 |
申请日期 |
2000.02.09 |
申请人 |
EXXONMOBIL OIL CORPORATION |
发明人 |
KONG DAN-CHENG;LARTER JOHN A.;MOUNT, III ELDRIDGE M. |
分类号 |
B32B27/18;B29C47/06;B29C55/02;B29K105/28;B29L7/00;B29L9/00;B32B27/20;B32B27/32;B32B27/36;B32B37/15;(IPC1-7):B32B5/18 |
主分类号 |
B32B27/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|