发明名称 |
FOERFARANDE FOER FRAMSTAELLNING AV BLAOST FILM |
摘要 |
Blown film on the basis of low-density polyethylene is prepared by extruding the molten polymer at melt temperatures at the die gap of below 135 DEG C. Films that have been prepared this way have special orientation as a result of which good mechanical and optical properties are present. Oriented films are determined by X-ray diffraction analysis and have an intensity ratio of the 110 reflection band max./min. of at least 20, and an angle alpha between the average orientation direction of the polymer molecules and the film extrustion direction of at most 20 DEG . |
申请公布号 |
FI87749(B) |
申请公布日期 |
1992.11.13 |
申请号 |
FI19850000499 |
申请日期 |
1985.02.06 |
申请人 |
STAMICARBON B.V. (LICENSING SUBSIDIARY OF DSM) |
发明人 |
VAN DER MOLEN, THEODORUS JACOBUS |
分类号 |
B29C55/28;B29C47/00;B29C47/20;B29C47/86;B29K23/00;B29L7/00;(IPC1-7):B29C47/00 |
主分类号 |
B29C55/28 |
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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