发明名称 |
FAST-SPUN FILAMENTS BASED ON POLYCAPROLACTAM AND PROCESS FOR PRODUCING THEM. |
摘要 |
0-3.0, METHOD OF PREPARING THE SAME, FIBERS AND FLAT PRODUCTS MADE FROM SAID FILAMENTS. FIELD: synthetic fibers and products therefrom. SUBSTANCE: filaments with relative viscosity of 2.0-3.0 measured at concentration of 1 g filaments per 100 ml of 96 wt.-%-sulphuric acid at temperature of 25 C, produced by extrusion and removal rate calculated in accordance with equation [3600-1250x(3.0-relative viscosity)] m/min. Polycaprolactam is produced in presence of at least one dicarboxylic acid selected from group consisting of alkanedicarboxylic acids with 4-10 carbon atoms, cycloalkanedicarboxylic acids with 5-8 carbon atoms, benzene- and naphthalenedicarboxylic acid with non-continuous acid groups which may have one or two sulphoacid groups, amine-N-alkyl-C-C-N,N-di(alkanecarboxylic acid with 1-10 carbon atoms). Filaments with above-mentioned parameters are produced by extruding molten polycaprolactam produced in presence of at least one dicarboxylic acid selected from above-mentioned group through a spinneret to thereby obtain polycaprolactam fibers, by cooling fibers thus-extruded, and by removing fibers thus-cooled at minimum rate equal to [3600-1250x(3.0-relative viscosity)] m/min. EFFECT: higher operational properties. |
申请公布号 |
EP0644959(A1) |
申请公布日期 |
1995.03.29 |
申请号 |
EP19930912778 |
申请日期 |
1993.05.25 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
MATTHIES, PAUL;HAHN, KARL;MELL, KARLHEINZ;SAUER, THOMAS;WEINERTH, KLAUS;LAUN, MARTIN;HABERKORN, HERBERT |
分类号 |
C08G69/14;C08G69/16;D01F6/60;D01F6/90 |
主分类号 |
C08G69/14 |
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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