发明名称 |
Polyketone fibres and a process for making same. |
摘要 |
<p>Novel fibre of an alternating carbon monoxide ethylene polymer having an estimated molecular weight of at least 100 000 g/mole, which fibre has a birefringence of at least 650.10<-><4>. A novel process for making a high tensile strength and high modulus fibre from a linear alternating polymer of carbon monoxide and ethylene having an estimated molecular weight of at least 100 000 g/mole comprises extruding a solution of the polymer in a mixture of solvents, at least one of which is an aromatic alcohol being free of alkyl radical substituents on the aromatic nucleus and another of which is a liquid other than an aromatic alcohol, into a shaped solvent-containing article at an extrusion rate of at least 1 m/min. The article is solidified by cooling or coagulating in a non-solvent for the polymer, and the solvent is removed from it by extraction with a non-solvent for the polymer which is soluble in the mixture of solvents, whereupon the article is drawn at a temperature of at least 180 DEG C.</p> |
申请公布号 |
EP0456306(A1) |
申请公布日期 |
1991.11.13 |
申请号 |
EP19910201040 |
申请日期 |
1991.05.02 |
申请人 |
AKZO N.V. |
发明人 |
LOMMERTS, BERT JAN;SMOOK, JAN;KRINS, BASTIAAN;PIOTROWSKI, ANDRZEJ MIECZYSLAW;BAND, ELLIOT ISAAC |
分类号 |
D01F6/78;D01F6/30;D01F6/96 |
主分类号 |
D01F6/78 |
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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