| 发明名称 |
OPAQUE POLYMERIC FILMS CAVITATED WITH PBT AND POLYCARBONATE |
| 摘要 |
<p>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 ba se layer; (c) cooling the coextruded multi-layer film; and then (d) orienting t he film in at least the machine direction (MD); wherein at least said base laye r contains polybutylene terephthalate (PBT) and polycarbonate.</p> |
| 申请公布号 |
CA2392760(A1) |
申请公布日期 |
2001.08.16 |
| 申请号 |
CA20012392760 |
申请日期 |
2001.01.31 |
| 申请人 |
MOBIL OIL CORPORATION |
发明人 |
KONG, DAN-CHENG;MOUNT, ELDRIDGE M., III;LARTER, JOHN A. |
| 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):B32B27/20;B32B31/30 |
主分类号 |
B32B27/18 |
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