发明名称 |
Oriented polymer composition with a deoriented surface layer |
摘要 |
Prepare an oriented polymer composition that is cavitated, has cross sectional dimensions all at least three millimeters and at least one de-oriented surface layer having a thickness of at least 80 microns and at least 50 microns less than half the thickness of the oriented polymer composition, the de-oriented surface layer having a lower degree of polymer orientation than a 100 micron thick portion of the oriented polymer composition adjacent to and below the de-oriented surface layer by sufficiently heat treating a surface of a cavitated oriented polymer composition.
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申请公布号 |
US7824756(B2) |
申请公布日期 |
2010.11.02 |
申请号 |
US20080326129 |
申请日期 |
2008.12.02 |
申请人 |
DOW GLOBAL TECHNOLOGIES, INC. |
发明人 |
O'BRIEN JAMES J.;KIRCH TIMOTHY O.;NICHOLS KEVIN L.;BIRCHMEIER BRETT M. |
分类号 |
B32B3/00;B32B3/12;B32B3/26;B32B5/14 |
主分类号 |
B32B3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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