发明名称 |
Resin or rubber article reinforced with a polyolefin fiber having improved initial elongation |
摘要 |
Disclosed is a polyolefin fiber having an improved initial elongation, which comprises a strongly drawn body of a composition comprising ultra-high-molecular-weight polyethylene and an ultra-high-molecular-weight copolymer of ethylene with an olefin having at least 3 carbon atoms at such a ratio that the content of the olefin having at least 3 carbon atoms in the entire composition is such that the number of side chains per 1000 carbon atoms in the composition is 0.2 to 5.0 on the average, and having an intrinsic viscosity ( eta ) of at least 5 dl/g as the entire composition, wherein the strongly drawn body has at least two crystal melting endothermic peaks, close to each other, in the region of temperature higher by at least 15 DEG C. than the inherent crystal melting temperature (Tm) of the composition determined as the main melting endothermic peak at the second temperature elevation when measured in the restrained state by a differential scanning calorimeter.
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申请公布号 |
US5143977(A) |
申请公布日期 |
1992.09.01 |
申请号 |
US19910668138 |
申请日期 |
1991.03.11 |
申请人 |
MITSUI PETROCHEMICAL INDUSTRIES, LTD. |
发明人 |
YAGI, KAZUO;TAKEDA, HIROYUKI |
分类号 |
C08L23/04;B29C55/00;B29K23/00;C08F210/16;C08J5/18;C08L23/16;D01F6/04;D01F6/30;D01F6/46 |
主分类号 |
C08L23/04 |
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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