Improvements in and relating to the manufacture of artificial threads, fibres, filaments and the like专利检索-..用含不止一个碳—碳双键的脂肪族化合物的聚合物专利检索查询-专利查询网

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Improvements in and relating to the manufacture of artificial threads, fibres, filaments and the like
申请号	GB3099550	申请日	1950-12-20	公开(公告)号	GB694809A	公开(公告)日	1953-07-29
申请人	COURTAULDS LTD;			发明人	WILLIAMS HAROLD MALCOLM GORDON;
摘要	Artificial threads are obtained by extruding a solution of a synthetic rubber obtained by polymerizing 1,3-butadiene or chloroprene either alone or in combination with a minor proportion of other polymerizable compounds such as styrene or acrylonitrile, containing a hydroperoxide into a coagulant bath containing sulphur dioxide, and at least 5 per cent by weight of the solvent used to dissolve the rubber, the extrusion being carried out in the presence of water. The water is preferably added in a proportion of 2-8 per cent by volume to the coagulant bath but may be added to the spinning bath in which case a water-miscible blending solution such as ethanol is also added. The hydroperoxide may be tertiary butyl hydroperoxide and the solvent toluene and the coagulant bath a mixture of ethanol or isopropanol and toluene. Specification 679,040 is referred to.ALSO:Artificial threads are obtained by extruding a solution of a natural rubber or a synthetic rubber obtained by polymerizing 1.3 butadiene or chloroprene either alone or in combination with a minor proportion of other polymerizable compounds such as styrene or acronitrile containing a hydroperoxide into a coagulant bath containing sulphur dioxide, and at least 5 per cent. by weight of the solvent used to dissolve the rubber the extrusion being carried out in the presence of water. The water is preferably added in a proportion of 2 to 8 per cent. by volume to the coagulant bath but may be added to the spinning bath in which case a water miscible blending solution such as ethanol is also added. The hydroperoxide may be tertiary butyl hydroperoxide and the solvent toluene and the coagulant bath a mixture of ethanol or isopropanol and toluene. Specification 679,040 is referred to.
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