发明名称 |
Flame retardant high-temperature-resistant polyimide fibers and molded articles manufactured therefrom |
摘要 |
The present disclosure describes flame-retardant, high-temperature resistant polyimide fibers, nonwovens made from said fibers, as well as the fibers and molded articles obtained after a heat treatment. A composite of such fibers is heated to a temperature in the glass transition range of the fiber, i.e. between 280 DEG and 350 DEG C. This heat treatment develops a contraction force of 0.3 to 1.1 cN in the fibers which results in a fiber shrinkage of between 20 and 60% and the formation of cohesive bonds. The fibers of the invention enable the manufacture of molded articles that are particularly strong, have a high temperature resistance and flame-retardant properties, while having a relatively low density.
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申请公布号 |
US5486412(A) |
申请公布日期 |
1996.01.23 |
申请号 |
US19930168558 |
申请日期 |
1993.12.16 |
申请人 |
LENZING AKTIENGESELLSCHAFT |
发明人 |
WEINROTTER, KLAUS;VODIUNIG, ROBERT |
分类号 |
B29C43/00;B29C67/24;D01F6/74;D04H1/06;D04H1/42;D04H1/4326;D04H1/50;D04H3/00;D06C7/00;(IPC1-7):B29D28/00;D04H1/04;C08G8/02;C08G14/00 |
主分类号 |
B29C43/00 |
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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