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公开(公告)号：US4581386A
公开(公告)日：1986-04-08
申请号：US737369
申请日：1985-05-23
CPC分类号： C08G18/6529 , B29C33/60 , C08G18/5021 , C08K5/098 , B29K2075/00 , C08G2120/00 , C08G2125/00 , Y10S264/83
摘要： The present invention is directed to a process for the production of optionally cellular, polyurethane elastomer molding by reacting a reaction mixture containing(I) a polyisocyanate,(II) an isocyanate-reactive polymer having a molecular weight of about 1800 to 12,000,(III) about 5 to 50% by weight, based on the weight of component (II) of a chain extender comprising a sterically hindered aromatic diamine and(IV) an internal mold release agent mixture comprising(a) about 0.5 to 10% by weight, based on the weight of components (II) and (III) of a zinc carboxylate containing 8 to 24 carbon atoms per carboxylate group and(b) a compatibilizer comprising a member selected from the group consisting of nitrogen-containing, isocyanate-reactive, acyclic compounds and nitrogen-containing, isocyanate-reactive polymers in an amount sufficient to solubilize the zinc carboxylate so that when the internal mold release agent mixture is in admixture with components (II) and (III), the zinc carboxylate possesses improved resistance to precipitation,the reaction mixture being processed as a one-shot system by the RIM process at an isocyanate index of about 70 to 130.
摘要翻译： 本发明涉及通过使包含（I）多异氰酸酯，（II）分子量为约1800至12,000的异氰酸酯反应性聚合物的反应混合物，（III） ）约5至50重量％，基于包含空间位阻芳族二胺的增链剂组分（II）的重量，和（IV）内部脱模剂混合物，其包含（a）约0.5至10重量％ 基于每个羧酸酯基团含有8至24个碳原子的羧酸锌的组分（II）和（III）的重量，和（b）增容剂，其包含选自含氮，异氰酸酯反应性，非环状 化合物和含氮异氰酸酯反应性聚合物，其量足以溶解羧酸锌，使得当内部脱模剂混合物与组分（II）和（III）混合时，锌羧酸 甲酸酯具有改善的抗沉淀性能，反应混合物通过RIM方法以约70至130的异氰酸酯指数作为单次注射系统加工。
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公开(公告)号：US4519965A
公开(公告)日：1985-05-28
申请号：US643612
申请日：1984-08-23
IPC分类号： C08G18/00 , B29C39/00 , B29C45/00 , B29K75/00 , C08G18/08 , C08G18/48 , C08G18/50 , C08G18/65 , C08J9/02 , C08K5/098 , C08L51/00 , C08L51/02 , C08L67/00 , C08L75/00 , C08L75/04 , C08L77/00 , C08G18/14
CPC分类号： C08G18/6529 , C08G18/5024 , C08K5/098 , C08G2120/00 , C08G2125/00
摘要： The present invention is directed to a process for the production of optionally cellular, polyurethane elastomer molding by reacting a reaction mixture containing(I) a polyisocyanate,(II) an isocyanate-reactive polymer having a molecular weight of about 1800 to 12,000,(III) about 5 to 50% by weight, based on the weight of component (II) of a chain extender comprising a sterically hindered aromatic diamine and(IV) an internal mold release agent mixture comprising(a) about 0.5 to 10% by weight, based on the weight of components (II) and (III) of a zinc carboxylate containing 8 to 24 carbon atoms per carboxylate group and(b) a compatibilizer comprising a member selected from the group consisting of nitrogen-containing, isocyanate-reactive, acyclic compounds and nitrogen-containing, isocyanate-reactive polymers in an amount sufficient to solubilize the zinc carboxylate so that when the internal mold release agent mixture is in admixture with components (II) and (III), the zinc carboxylate possesses improved resistance to precipitation,the reaction mixture being processed as a one-shot system by the RIM process at an isocyanate index of about 70 to 130.
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公开(公告)号：US4131662A
公开(公告)日：1978-12-26
申请号：US866449
申请日：1978-01-03
CPC分类号： B29C33/60 , B29K2075/00 , Y10S264/14 , Y10S264/77
摘要： The instant invention is directed to novel mold release agents for polyurethane resins and to the use thereof, particularly in the closed mold forming of polyurethane foams. The mold release agents disclosed herein are applied to the surface of the mold prior to molding and broadly comprise talc dispersed in an emulsion of water and an organic solvent.
摘要翻译： 本发明涉及用于聚氨酯树脂的新型脱模剂及其用途，特别是在聚氨酯泡沫的封闭模具成型中。 本文公开的脱模剂在模制之前施加到模具的表面，并且广泛地包括分散在水和有机溶剂的乳液中的滑石。
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