发明名称 |
Polyesterfilmer og fremgangsmåte for fremstilling derav |
摘要 |
<p>Polyester films 5-30 microns thick having (i) a degree of crystallinity of greater than or equal to 50 %, (ii) a planar birefringence delta P of less than or equal to 0.160, (iii) a breaking strength in the longitudinal direction (RRMD) and the weakest of the two breaking strengths in diagonal directions (+/- 45 degrees . w.r.t. the longitudinal direction) (RR45) such that (RRMD)-(RR45) is less than or equal to 40 kg/mm<2> (392.4 MPa) and (iv) an elongation at rupture in the longitudinal direction (ARMD) and the highest of the two elongations at rupture in the diagonal directions (+/- 45 degrees w.r.t. the longitudinal direction) (45) such that (ARMD)+(AR45) is greater than or equal to 290 %, and which satisfy the performance requirements of the particular application envisaged.</p> |
申请公布号 |
NO952630(D0) |
申请公布日期 |
1995.07.03 |
申请号 |
NO19950002630 |
申请日期 |
1995.07.03 |
申请人 |
RHONE-POULENC FILMS |
发明人 |
BENHAYOUN, JEAN-PAUL;MARZE, ALAIN;MELQUIONI, BRUNOT |
分类号 |
B29D7/01;B29C55/12;B29C55/14;C08J5/18;(IPC1-7):C08J;C08L |
主分类号 |
B29D7/01 |
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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