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公开(公告)号：US5061426A
公开(公告)日：1991-10-29
申请号：US585956
申请日：1990-09-21
CPC分类号： D01F6/70 , C08G18/10 , C08G18/44 , C08G18/7671
摘要： A process for the production of highly elastic elastane fibers (spandex fibers) based on segmented polyurethane (urea) elastomers having high elasticity and, at the same time, high strength values, balanced elastic properties and excellent thermal and hydrothermal behavior, wherein relatively high molecular weight, carbonate-linked, block-like polyester of polyester etherdiols having molecular weight of 3,300 to 7,000 are reacted with macrodiols with diisocyanates in a molecular ratio of 1:2.5 to 1:4.5 to obtain NCO prepolymers which have NCO contents of 2.10 to 4.0% NCO, then the NCO prepolymer is chain-extended with (cyclo)-aliphatic diamines to fom polyurethane (urea) elastomers.
摘要翻译： 一种基于具有高弹性并且同时具有高强度值，平衡弹性和优异的热和水热行为的分段聚氨酯（脲）弹性体生产高弹性弹性纤维（氨纶纤维）的方法，其中相对较高的分子量 分子量为3300〜7000的聚酯醚二醇的重量，碳酸酯连接的嵌段状聚酯与大分子二醇与分子比为1:2.5〜1:4.5的二异氰酸酯反应，得到NCO含量为2.10〜4.0的NCO预聚物 ％NCO，则NCO预聚物与（环） - 脂族二胺链延伸至聚氨酯（脲）弹性体。
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2.发明授权Elasthane threads, their production and intermediate products required therefor 失效Elasthane螺纹，其生产和中间产品需要
公开(公告)号：US4725636A
公开(公告)日：1988-02-16
申请号：US847782
申请日：1986-04-03
申请人： Michael Kausch , Hans Schroer , Karl-Heinz Wolf , Heinz Gall , Carlhans Suling , Rudi Dauscher
发明人： Michael Kausch , Hans Schroer , Karl-Heinz Wolf , Heinz Gall , Carlhans Suling , Rudi Dauscher
CPC分类号： D01F6/70 , C08G18/10 , C08G18/3275 , C08G18/3287 , C08K5/005 , C08K5/13 , C08L75/04
摘要： In the production of elasthane threads by solution spinning of polyurea polyurethanes by conventional spinning processes, excellent stabilization against light and noxious gases are obtained if at least one component of the system to be spun contains tertiary amino groups and the substances used as antioxidizing agents are phenols of the kind which do not form colored nitro compounds.
摘要翻译： 在通过常规纺丝方法通过聚脲聚氨酯的溶液纺丝生产弹性线时，如果待纺制品的至少一种组分含有叔氨基，并且用作抗氧化剂的物质是酚类，则可获得对光和有毒气体的极好的稳定性 不形成有色硝基化合物的那种。
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公开(公告)号：US4772677A
公开(公告)日：1988-09-20
申请号：US124509
申请日：1987-11-23
申请人： Michael Kausch , Carlhans Suling , Hans Schroer , Karlheinz Wolf , Rudi Dauscher
发明人： Michael Kausch , Carlhans Suling , Hans Schroer , Karlheinz Wolf , Rudi Dauscher
CPC分类号： C08G18/4018 , C08G18/0852 , C08G18/12
摘要： This invention relates to highly stretchable elasthane fibres (Spandex fibres) based on segmented polyurethane(urea)s with improved elastic properties and high resistance to microbial degradation, characterized in that the polyurethane(urea)s used for the synthesis of the elasthanes are prepared from mixtures of relatively high molecular weight copolyester diols in the molecular weight range of from 2,500 to 4,000 and relatively high molecular polytetrahydrofurandiols in the molecular weight range of from 1,500 to 3,000.
摘要翻译： 本发明涉及基于具有改进的弹性和高抗微生物降解的分段聚氨酯（脲）的高伸缩性弹性纤维（氨纶纤维），其特征在于用于合成弹性体的聚氨酯（脲）由 分子量范围为2500至4000的较高分子量共聚酯二醇的混合物和分子量范围为1,500至3,000的相对高分子量的聚四氢呋喃二醇。
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公开(公告)号：US4791187A
公开(公告)日：1988-12-13
申请号：US082531
申请日：1987-08-07
申请人： Carlhans Suling , Michael Kausch , Rudi Dauscher
发明人： Carlhans Suling , Michael Kausch , Rudi Dauscher
IPC分类号： C08G18/30 , C08G18/32 , C08G18/38 , C08G18/65 , C08G18/67 , C08G18/77 , C08G18/78 , C08G18/81 , C09K19/38 , D01F6/70
CPC分类号： C08G18/3825 , C08G18/3215 , C08G18/3221 , C08G18/3243 , C08G18/3819 , C08G18/3834 , C08G18/3836 , C08G18/65 , C08G18/675 , C08G18/771 , C08G18/7856 , C08G18/7862 , C08G18/8125 , C09K19/3885
摘要： The invention relates to essentially linear polyurethane elastomers, having improved properties, made from polyester or polyether diols, diisocyanates and chain extenders, the latter having liquid-crystalline properties; and also films and, in particular, fibres which are prepared on the basis of such liquid-crystalline polyurethane components and are shaped thermoplastically (via melting) or from solutions (by solution spinning processes). The invention furthermore relates to an appropriate process for the preparation of the polyurethane elastomers, particularly of PU elastomer fibres (Elasthan and Spandex fibres).
摘要翻译： 本发明涉及由聚酯或聚醚二醇，二异氰酸酯和扩链剂制成的具有改进性能的基本上线性的聚氨酯弹性体，后者具有液晶性质; 以及膜，特别是基于这种液晶聚氨酯组分制备并且通过热塑性（通过熔化）或溶液（通过溶液纺丝工艺）成型的纤维。 本发明还涉及制备聚氨酯弹性体，特别是PU弹性体纤维（Elasthan和Spandex纤维）的合适方法。
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5.发明授权
公开(公告)号：US5057260A
公开(公告)日：1991-10-15
申请号：US504491
申请日：1990-04-04
申请人： Ulrich Reinehr , Heinz Gall , Josef Kulig , Rudi Dauscher , Rolf-Burkhard Hirsch
发明人： Ulrich Reinehr , Heinz Gall , Josef Kulig , Rudi Dauscher , Rolf-Burkhard Hirsch
摘要： An improved dry spinning process for the production of polyurethane elastomer threads using superheated steam as the spinning medium, comprising(1) spinning polyurethane-urea elastomers prepared by chain lengthening of NCO prepolymers with diamine from a solution containing dimethylformamide or dimethylacetamide via a hot spinneret having a nozzle at not less than 100.degree. C. and at a spinning solution temperature in the nozzle of not less than 100.degree. C. into a heated spinning chimney at a chimney wall temperature of not less than 160.degree. C., while(2) introducing superheated steam into the spinning chimney at a temperature above 250.degree. C. as the spinning medium in an amount of at least 20 kg/h, if the chimney diameter is less than or equal to 28 cm, or if the chimney diameter is greater than 28 cm, in an amount of at least 20 kg/h increased by up to a factor H, wherein factor H is equal to the chimney cross-section/615 cm.sup.2,(3) feeding the spinning medium and spinning solvent to a recovery step at the end of the spinning chimney, and(4) maintaining a take-off speed of the threads from the chimney of at least 250 m/min. The improved process yields improved thread properties in the resulting filament yarns.
摘要翻译： 一种用于生产使用过热蒸汽作为纺丝介质的聚氨酯弹性体丝线的改进的干法纺丝方法，包括（1）通过热喷丝板从含有二甲基甲酰胺或二甲基乙酰胺的溶液中将NCO预聚物与二胺链延长制备的聚氨酯 - 脲弹性体纺丝， 喷嘴不低于100℃，喷嘴中纺丝溶液温度不低于100℃进入加热纺丝烟囱，烟囱壁温度不低于160℃，而（2） 如果烟囱直径小于或等于28厘米，则将过热蒸汽以超过250℃的温度作为纺丝介质以至少20kg / h的量引入到旋转烟囱中，或者如果烟囱直径更大 超过28cm，至少20kg / h的量增加到因子H，其中因子H等于烟囱横截面/ 615cm 2，（3）将纺丝介质和纺丝溶剂输送到ar 在旋转烟囱末端的生态步骤，以及（4）保持螺纹从烟囱起飞的速度至少为250米/分钟。 改进的方法在所得的长丝纱中产生改善的丝线性能。
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