公开(公告)号：US06485665B1

公开(公告)日：2002-11-26

申请号：US09555829

申请日：2000-07-19

申请人： Frank Hermanutz ,  Peter Hirt ,  Oliver Oess ,  Wilhelm Oppermann

发明人： Frank Hermanutz ,  Peter Hirt ,  Oliver Oess ,  Wilhelm Oppermann

IPC分类号： B29C3510

CPC分类号： D01F6/70 ,  Y10S528/906

摘要： Polyurethane elastomer fibers with superior mechanical and heat distortion properties are obtained by a method in which (a) a segmented polyurethane polymer is produced on the basis of a macro-diol, an aliphatic diisocyanate, and a chain extender with at least two hydroxy and/or amino groups, where the polymer has a molar excess of isocyanate groups over the hydroxy and/or amino groups from the macro-diol and chain extender; (b) the polyurethane polymer is melt-extruded to form a fiber; and (c) The extruded fiber is subjected to a post-treatment. Steps (a) and (b) are carried out under temperature conditions and within a time interval where essentially no allophanate will be formed, while step (c) is performed under temperature conditions and within a time interval in which the polyurethane polymer is cross-linked through the formation of allophanate.

摘要翻译： 通过以下方法获得具有优异机械和热变形性能的聚氨酯弹性体纤维：其中（a）基于大分子二醇，脂族二异氰酸酯和扩链剂制备分段聚氨酯聚合物，其具有至少两个羟基和/ 或氨基，其中聚合物在大分子二醇和扩链剂的羟基和/或氨基上具有摩尔过量的异氰酸酯基团;（b）将聚氨酯聚合物熔融挤出以形成纤维; 步骤（a）和（b）在温度条件下并且在基本上不会形成脲基甲酸酯的时间间隔内进行，而步骤（c）在 在聚氨酯聚合物通过形成脲基甲酸酯交联的时间间隔内。

公开(公告)号：US06458866B1

公开(公告)日：2002-10-01

申请号：US09051351

申请日：1998-05-15

申请人： Wilhelm Oppermann ,  Frank Hermanutz ,  Peter Hirt ,  Michael Schweizer ,  Oliver Oess

发明人： Wilhelm Oppermann ,  Frank Hermanutz ,  Peter Hirt ,  Michael Schweizer ,  Oliver Oess

IPC分类号： C08G1832

CPC分类号： D01F6/70 ,  C08G18/675 ,  C08G18/676 ,  C08G18/678 ,  C08G18/679 ,  Y10S528/906

摘要： The invention concerns a polyurethane elastomer containing structural units of type (a), in which: the group —O—R1—O—is a macrodiol group with a molecular weight of approximately 500 to 10000, R2 is a bivalent aliphatic, cycloaliphatic and/or aliphatic-cycloaliphatic group; and X is a short-chain olefinically unsaturated group, Y is NH or O, n is an integer from 1 to 10 and m is an integer of at least 4. The invention also concerns a method of preparing this polyurethane elastomer which can be melt-spun to form fibres or melt-extruded to form foils. The fibres or foils can be exposed to energy-rich radiation such that crosslinking of the polyurethane occurs. Fibres according to the invention display superior properties in terms of textile-mechanical properties, in particular good tensile strength, elongation at tear, residual elongation and heat distortion temperature.

摘要翻译： 本发明涉及含有（a）型结构单元的聚氨酯弹性体，其中：-O-R 1 -O-为分子量约500〜10000的大二醇基，R2为二价脂族，脂环族和/ 或脂肪族 - 脂环族基团; X为短链烯属不饱和基团，Y为NH或O，n为1〜10的整数，m为4以上的整数。本发明还涉及制备该聚氨酯弹性体的方法，该聚氨酯弹性体可熔融 - 纺成纤维或熔融挤出以形成箔。 纤维或箔可以暴露于能量丰富的辐射，从而发生聚氨酯的交联。 根据本发明的纤维在纺织 - 机械性能，特别是良好的拉伸强度，撕裂伸长率，残余伸长率和热变形温度方面表现出优异的性能。