发明名称 |
AROMATISCHE POLYAMIDFASER UND VERFAHREN ZU IHRER HERSTELLUNG |
摘要 |
1417526 Ultra-violet radiation resistant polyamide fibers E I DU FONT DE NEMOURS & CO 1 Nov 1973 [2 Nov 1972] 50778/73 Heading B5B Aromatic polyamide fibres having improved resistance to u.v. degradation are made by dry or wet spinning fibres from a suitable solution and washing but not drying the fibres, and heati ng the still wet fibres in an aqueous dispersion of an ultra-violet light screening material and drying the fibres. The u.v. light screening material is preferably a substituted benzotriazole, a substituted benzophenone or a substituted triazine used in an amount of 2-6% by wt. of the fibres. The fibres are such that the u.v. screening material is distributed throughout the fibre and no agglomerates thereof are greater than 0À01 microns. |
申请公布号 |
AT339463(B) |
申请公布日期 |
1977.10.25 |
申请号 |
AT19730009205 |
申请日期 |
1973.10.31 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
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分类号 |
C08L77/00;C08K5/00;D01F6/60;D01F6/90 |
主分类号 |
C08L77/00 |
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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