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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Process for the production of PUH elastomer threads and films resistant to light and exhaust gases and elastomer threads having the required composition 失效生产PUH弹性体螺纹和薄膜的方法适用于具有所需组分的轻型和排气气体和弹性体螺纹
公开(公告)号：US5086150A
公开(公告)日：1992-02-04
申请号：US585959
申请日：1990-09-21
CPC分类号： C08G18/10 , C08G18/0852 , C08G18/4238 , C08G18/73 , C08G18/75 , C08K3/16
摘要： This invention relates to a process for the production of light resistant and exhaust gas resistant PUH elastomer threads and films based on segmented polyurethane ureas which are based on diisocyanate mixtures of from 30 to 85 mol% of trans-1,4-cyclohexylene diisocyanate and from 70 to 15 mol% of other aliphatic or cycloaliphatic diisocyanates. The diisocyanates are first reacted with relatively high molecular weight dihydroxy compounds and optionally low molecular weight diols to form an isocyanate prepolymer which is then reacted with aliphatic diamines or diamine mixtures, preferably ethylene diamine, in highly polar solvents, optionally in the presence of salt type solubilizing agents such as lithium salts and preferably with the aid of aliphatic chain terminators, in particular those having a cycloaliphatic structure, to produce elastomer solutions which are stable under processing conditions. These solutions are spun in the conventional manner or dried to form films or coagulated to form sheet products.The invention also relates to the segmented polyurethane urea elastomers, in particular threads, obtainable by the new process.
摘要翻译： 本发明涉及一种基于分段聚氨酯脲的生产耐光，耐废气PUH弹性体丝和薄膜的方法，该聚氨酯脲基于30至85摩尔％的反式-1,4-亚环己基二异氰酸酯和二异氰酸酯的二异氰酸酯混合物 70至15摩尔％的其它脂族或脂环族二异氰酸酯。 二异氰酸酯首先与相对高分子量的二羟基化合物和任选的低分子量二醇反应以形成异氰酸酯预聚物，然后将其与脂族二胺或二胺混合物，优选乙二胺在高极性溶剂中，任选在盐型存在下反应 增溶剂如锂盐，优选借助于脂族链终止剂，特别是具有脂环族结构的那些，以产生在加工条件下稳定的弹性体溶液。 这些溶液以常规方式纺丝或干燥以形成薄膜或凝固以形成片材产品。 本发明还涉及可通过新工艺获得的分段聚氨酯脲弹性体，特别是螺纹。
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3.发明授权Process for the production of viscosity-stable, low-gel highly concentrated elastane spinning solutions 失效用于生产粘度稳定，低凝胶高度浓缩的弹性纺丝溶液的方法
公开(公告)号：US5302660A
公开(公告)日：1994-04-12
申请号：US87978
申请日：1993-07-07
申请人： Bernd Klinksiek , Rolf-Volker Meyer , Beatrix Frauendorf , Klaus Rall , Wolfgang 35e,uml/a/ cker , Hans-Joachim Wollweber , Helmut Ohse , Wolfram Wagner
发明人： Bernd Klinksiek , Rolf-Volker Meyer , Beatrix Frauendorf , Klaus Rall , Wolfgang 35e,uml/a/ cker , Hans-Joachim Wollweber , Helmut Ohse , Wolfram Wagner
CPC分类号： B01F5/043 , B01F5/0415 , B01F5/0428 , B01F5/0682 , B01F5/0689 , D01F6/70
摘要： The invention relates to a process for the production of low-gel spinning solutions-surprisingly stable in their solution viscosity-of segmented polyurethane urea elastomers in highly polar solvents, such as dimethyl formamide or dimethyl acetamide, characterized by the use of multistage jet reactor, and to a multistage jet reactor.
摘要翻译： 本发明涉及一种制备低凝胶纺丝溶液的方法，其在其极性溶剂如二甲基甲酰胺或二甲基乙酰胺中的分段聚氨酯脲弹性体的溶液粘度令人惊奇地稳定，其特征在于使用多级喷射反应器， 和一个多级喷射反应堆。
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4.发明授权Process for the production of segmented polyurethane urea elastomer solutions and filaments and films thereof 失效用于生产分段聚氨酯脲弹性体溶液及其长丝及其膜的方法
公开(公告)号：US5032664A
公开(公告)日：1991-07-16
申请号：US586246
申请日：1990-09-21
CPC分类号： C08G18/10 , C08G18/0852 , D01F6/70
摘要： The invention relates to a process for the production of highly concentrated and, surprisingly, viscosity-stable solutions of segmented polyurethane urea elastomers in highly polar solvents, such as dimethyl formamide and dimethyl acetamide, having little or no tendency to turn to paste, characterized by the use of certain primary and secondary cycloaliphatic monoamines or cycloaliphatic monisocyanates as chain-extending agents/blocking agents in the reaction of NCO prepolymers based on relatively high molecular weight dihydroxy compounds and (preferably aromatic) diisocyanates with aliphatic and and/or cycloaliphatic diamine chain-extending agents. The chain terminators according to the invention also show unexpected iprovements in the color of the elastomer solution and also in the stability of the end products, preferably filaments, to light and noxious gases.The invention also relates to elastomers of corresponding composition containing special terminators, preferably in the form of filaments, films or coatings showing improved stability to light and waste gases.
摘要翻译： 本发明涉及在高极性溶剂如二甲基甲酰胺和二甲基乙酰胺中生产高度浓缩且令人惊奇的粘度稳定的分散聚氨酯脲弹性体溶液的方法，其具有很少或没有倾向于糊化的特征， 在基于相对高分子量的二羟基化合物和（优选芳族）二异氰酸酯的NCO预聚物与脂族和/或脂环族二胺链 - 二羧酸酯反应的反应中，使用某些伯和仲脂环族单胺或脂环族单异氰酸酯作为扩链剂/ 扩展代理。 根据本发明的链终止剂还显示出弹性体溶液的颜色的意想不到的渗透性，以及最终产物（优选长丝）对轻质和有毒气体的稳定性。 本发明还涉及包含特殊终止剂的相应组合物的弹性体，优选以丝，膜或涂层的形式显示出对光和废气的稳定性的改善。
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