发明名称 |
VERFAHREN ZUR HERSTELLUNG VON ARAMIDGARN MIT HOHER FESTIGKEIT |
摘要 |
The invention relates to a method for obtaining high-tenacity aramid yarn, wherein the yarn is made of a copolymer obtained from a mixture of monomers comprising DAPBI, an aromatic para-diamine, and an aromatic para-diacid, wherein the yarn is heated in at least two process steps, characterized in that in a first step the yarn is heated at a temperature of 200 to 360° C. at a tension of at least 0.2 cN/dtex, followed by a second step wherein the yarn is heated at a temperature of 370 to 500° C. at a tension of less than 1 cN/dtex. The invention further pertains to a multifilament aramid yarn spun from a sulfuric acid spin dope and having a tenacity of at least 2500 mN/tex. |
申请公布号 |
AT455881(T) |
申请公布日期 |
2010.02.15 |
申请号 |
AT20070856179T |
申请日期 |
2007.11.19 |
申请人 |
TEIJIN ARAMID B.V. |
发明人 |
BOERSTOEL, HANNEKE;BOS, JOHANNES;SCHAAP, ADRIAAN ANTON;WILBERS, DENNIS;BUSSCHER, LEONARDUS ANTONIUS GODFRIED;SCHOTMAN, ANTONIUS HENRICUS MARIA;STOLZE, KURT RAINER HANS-HEINRICH |
分类号 |
D01F6/80;D02G3/04;D06M15/285 |
主分类号 |
D01F6/80 |
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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