发明名称 |
Process for the preparation of polymer yarns from ultra high molecular weight homopolymers or copolymers, polymer yarns, molded polymer parts, and the use of polymer yarns |
摘要 |
A process for the preparation of polymer yarns from ultra high molecular weight homopolymers or copolymers which includes the steps of preparing a suspension of a homopolymer or copolymer and a spinning or gelling solvent, extruding the suspension with the formation of a gel, spinning the gel to obtain non-stretched filaments or yarns, cooling the non-stretched filaments or yarns, feeding the non-stretched filaments or yarns, to an extractor together with the feed of an organic extraction solvent, extracting the non-polar long chain solvent impregnated in the yarns, drying the non-stretched filament bundles or yarns, and stretching said dry yarns at a temperature in excess of 80° C.
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申请公布号 |
US8003027(B2) |
申请公布日期 |
2011.08.23 |
申请号 |
US20070979951 |
申请日期 |
2007.11.09 |
申请人 |
BRASKEM S.A.;PROFIL IND E COM DE FIOS LTDA. |
发明人 |
DA CUNHA FERNANDA OLIVEIRA VIEIRA;DO NASCIMENTO ALAN KARDEC;DE LA RUE BRENO;BECKERDORF MARTHA DE LA RUE |
分类号 |
D01D5/06;D01D5/16;D01F6/02;D02J13/00 |
主分类号 |
D01D5/06 |
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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