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1. 发明授权

US06765080B2 High performance RIM elastomers and a process for their production 失效
标题翻译：高性能RIM弹性体及其生产工艺
公开(公告)号：US06765080B2
公开(公告)日：2004-07-20
申请号：US10165297
申请日：2002-06-06
申请人： Michael S. Super , David D. Steppan , William E. Slack , Bruce H. Potts , Michael F. Hurley
发明人： Michael S. Super , David D. Steppan , William E. Slack , Bruce H. Potts , Michael F. Hurley
IPC分类号： C08G1878
CPC分类号： C08G18/7837 , C08G18/10 , C08G18/222 , C08G18/324 , C08G18/4804 , C08G18/4866 , C08G18/5024 , C08G18/7671 , C08G2120/00 , C08G18/6685
摘要： This invention relates to high performance RIM (reaction injection molded) poly(urethane)urea elastomers, and to a process for their production. These elastomers comprise the reaction product of an allophanate-modified diphenylmethane diisocyanate prepolymer having an NCO group content of about 5 to about 30%, with an isocyanate-reactive component comprising a high molecular weight amine-terminated polyether polyol, an aromatic diamine chain extender, and, optionally, a chain extender or crosslinker selected from the group consisting of aliphatic amine terminated polyether polyols and aliphatic hydroxyl terminated polyether polyols, optionally, in the presence of an internal mold release agent, a surfactant and a filler.
摘要翻译：本发明涉及高性能RIM（反应注射成型）聚（氨基甲酸酯）脲弹性体，以及其制备方法。这些弹性体包含NCO基团含量为约5至约30％的脲基甲酸酯改性的二苯基甲烷二异氰酸酯预聚物与包含高分子量胺封端的聚醚多元醇的异氰酸酯反应性组分，芳族二胺扩链剂，任选地，在内部脱模剂，表面活性剂和填料的存在下，任选地，选自脂族胺封端的聚醚多元醇和脂族羟基封端的聚醚多元醇的扩链剂或交联剂。

2. 发明授权

US5470935A Preparation of cast elastomers using 2-methyl-1,3-propanediol as chain extender 失效
标题翻译：使用2-甲基-1,3-丙二醇作为扩链剂制备流延弹性体
公开(公告)号：US5470935A
公开(公告)日：1995-11-28
申请号：US219153
申请日：1994-03-29
申请人： Robson M. Mafoti , Bruce H. Potts
发明人： Robson M. Mafoti , Bruce H. Potts
IPC分类号： C08G18/10 , C08G18/42 , C08G18/32 , C08G18/48
CPC分类号： C08G18/4238 , C08G18/10
摘要： This invention relates to a process for preparing polyurethane elastomers comprising reacting in an open mold at an isocyanate index of about 90 to about 110(a) an isocyanate prepolymer having an isocyanate content of about 2 to about 15% by weight and having a molecular weight of from about 800 to about 5000, wherein said isocyanate prepolymer is a reaction product of(i) at least one organic polyisocyanate with(ii) at least one isocyanate-reactive compound having at least two isocyanate-reactive groups and having a molecular weight of from about 250 to about 4000;with(b) 2-methyl-1,3-propanediol as chain extender, optionally in admixture with up to about 10 percent by weight of a different chain extender having two isocyanate-reactive hydrogen atoms and having a molecular weight of from 32 to about 250;optionally in the presence of(c) one or more catalysts and/or other auxiliaries or additives.
摘要翻译：本发明涉及一种制备聚氨酯弹性体的方法，包括在开模中以异氰酸酯指数为约90至约110（a）异氰酸酯含量为约2至约15重量％的异氰酸酯预聚物反应，并具有分子量为约800至约5000，其中所述异氰酸酯预聚物为（i）至少一种有机多异氰酸酯与（ii）至少一种异氰酸酯反应性化合物的反应产物，其具有至少两个异氰酸酯反应性基团并且分子量为约250至约4000; 与（b）2-甲基-1,3-丙二醇作为扩链剂，任选地与至多约10重量％的具有两个异氰酸酯反应性氢原子并且分子量为32至约 250; 任选地在（c）一种或多种催化剂和/或其它助剂或添加剂的存在下。

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