| 发明名称 |
Polymer films |
| 摘要 |
A stretched polyolefin film, suitable for use as a packaging material, comprising a uniform cellular structure produced by the use of a blowing agent and consisting essentially of a crystalline having a broad molecular weight distribution and a low Melt Flow Index wherein the film contains 0-25% by weight of fillers or pigments and wherein the film has a thickness of 11 mils or less.
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| 申请公布号 |
US4264672(A) |
申请公布日期 |
1981.04.28 |
| 申请号 |
US19790077187 |
申请日期 |
1979.09.20 |
| 申请人 |
BAKELITE XYLONITE LIMITED |
发明人 |
TAYLOR-BROWN, TERENCE J.;JACK, DECEASED, JAMES |
| 分类号 |
B29C69/00;B29C44/00;B29C47/00;B29C47/14;B29C55/00;B29C55/06;B29C55/12;B29C59/00;B29C67/20;B29D1/00;B65D65/38;C08J5/18;C08J9/10;(IPC1-7):B32B5/16;B32B5/18;B32B27/00 |
主分类号 |
B29C69/00 |
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