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公开(公告)号：US06605684B2
公开(公告)日：2003-08-12
申请号：US10046936
申请日：2002-01-14
IPC分类号： C08G1832
CPC分类号： C08G18/5024 , C08G18/10 , C08G18/3821 , C08G18/4804 , C08G2150/50 , C08G18/6685
摘要： This invention concerns a method for the preparation of polyurea elastomers, comprising: (a) reacting an amine chain extender with dialkyl maleate to form an aspartic ester, wherein the chain extender has a molar amount of amine groups that is greater than the moles of dialkyl maleate; (b) blending the aspartic ester with one or more polyoxyalkyleneamines to prepare a resin blend; (c) contacting the resin blend with an isocyanate under conditions effective to form a polyurea elastomer. This invention concerns a method for the preparation of polyurethane elastomers, comprising: (a) reacting an diamine chain extender with dialkyl maleate or fumarate, wherein the mole ratio of primary amine functionality in the diamine chain extender to dialkyl maleate or fumarate is more than 1:1; (b) coating a substrate with effective film forming amounts of the product of step (a), an isocyanate, and a polyhydroxyl compound under conditions effective to form a the polyurethane elastomer.
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公开(公告)号：US06013755A
公开(公告)日：2000-01-11
申请号：US815154
申请日：1997-03-11
CPC分类号： C08G18/5024 , C08G18/10 , C08G18/3821 , C08G18/4804 , C08G2150/50
摘要： This invention concerns a method for the preparation of polyurea elastomers, comprising: (a) reacting an amine chain extender with dialkyl maleate to form an aspartic ester, wherein the chain extender has a molar amount of amine groups that is less than the moles of dialkyl maleate; (b) blending the aspartic ester with one or more polyoxyalkyleneamines to prepare a resin blend; (c) contacting the resin blend with an isocyanate under conditions effective to form a polyurea elastomer. This invention also concerns a a polyurea elastomer, comprising the reaction product of (a) a resin blend containing one or more polyoxyalkyleneamine and an aspartic ester and (b) an isocyanate, wherein the aspartic ester in the resin blend comprises a reaction product of an amine chain extender and a dialkyl maleate, wherein the mole ratio of amine functionality in the amine chain extender to dialkyl maleate or fumarate is greater than 1:1.
摘要翻译： 本发明涉及一种制备聚脲弹性体的方法，包括：（a）使胺扩链剂与马来酸二烷基酯反应形成天冬氨酸酯，其中扩链剂的摩尔量小于二烷基 马来酸盐 （b）将天冬氨酸酯与一种或多种聚氧化烯胺混合以制备树脂共混物; （c）在有效形成聚脲弹性体的条件下使树脂共混物与异氰酸酯接触。 本发明还涉及一种聚脲弹性体，其包含（a）含有一种或多种聚氧化烯胺和天冬氨酸酯的树脂共混物和（b）异氰酸酯的反应产物，其中树脂共混物中的天冬氨酸酯包含胺 扩链剂和马来酸二烷基酯，其中胺扩链剂中胺官能度与马来酸二烷基酯或富马酸盐的摩尔比大于1:1。
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公开(公告)号：US07078475B2
公开(公告)日：2006-07-18
申请号：US10479403
申请日：2002-06-11
IPC分类号： C08G18/10
CPC分类号： C09D175/02 , C08G18/10 , C08G18/3234 , C08G18/325 , C08G18/3256 , C08G18/5021 , C08G18/6685 , C08G2150/50
摘要： Disclosed are derivatives of isophorone diamine exhibiting a synergistic relationship with other commonly employed chain extenders offering enhanced efficacy with regard to slowing of the polyurea elastomer cure profile, and processes employing their use. According to the invention, extensions of the gel-free and tack-free times are more readily achieved at lower loading levels for these chain extender blends than are afforded through the sole use of the individual molecules.
摘要翻译： 公开的异佛尔酮二胺的衍生物与其它通常使用的扩链剂具有协同关系，其在降低聚脲弹性体固化分布方面提供了增强的功效，以及使用其使用的方法。 根据本发明，对于这些增链剂共混物的较低负载水平，通过单独使用单独的分子而提供的无凝胶和无粘性时间的延伸更容易实现。
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公开(公告)号：US06399736B1
公开(公告)日：2002-06-04
申请号：US09481245
申请日：2000-01-11
IPC分类号： C08G1832
CPC分类号： C08G18/5024 , C08G18/10 , C08G18/3821 , C08G18/4804 , C08G2150/50 , C08G18/6685
摘要： This invention concerns a method for the preparation of polyurea elastomers, comprising: (a) reacting an amine chain extender with dialkyl maleate to form an aspartic ester, wherein the chain extender has a molar amount of amine groups that is greater than the moles of dialkyl maleate; (b) blending the aspartic ester with one or more polyoxyalkyleneamines to prepare a resin blend; (c) contacting the resin blend with an isocyanate under conditions effective to form a polyurea elastomer. This invention concerns a method for the preparation of polyurethane elastomers, comprising: (a) reacting an diamine chain extender with dialkyl maleate or fumarate, wherein the mole ratio of primary amine functionality in the diamine chain extender to dialkyl maleate or fumarate is more than 1:1; (b) coating a substrate with effective film forming amounts of the product of step (a), an isocyanate, and a polyhydroxyl compound under conditions effective to form a the polyurethane elastomer.
摘要翻译： 本发明涉及一种制备聚脲弹性体的方法，包括：（a）使胺扩链剂与马来酸二烷基酯反应形成天冬氨酸酯，其中扩链剂的胺基摩尔量大于二烷基 马来酸盐 （b）将天冬氨酸酯与一种或多种聚氧化烯胺混合以制备树脂共混物; （c）在有效形成聚脲弹性体的条件下使树脂共混物与异氰酸酯接触。 本发明涉及一种制备聚氨酯弹性体的方法，包括：（a）使二胺扩链剂与马来酸二烷基酯或富马酸盐反应，其中二胺扩链剂中伯胺官能度与马来酸二烷基酯或富马酸盐的摩尔比大于1 ：1; （b）在有效形成聚氨酯弹性体的条件下，用有效成膜量的步骤（a）的产物，异氰酸酯和多羟基化合物涂覆基材。
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公开(公告)号：US06855795B2
公开(公告)日：2005-02-15
申请号：US10850249
申请日：2004-05-20
CPC分类号： C08G64/307 , Y02P20/582
摘要： The present invention provides a process for producing polycarbonates in the presence of one or more alkali metal or alkaline-earth metal catalysts, and subsequently removing the catalyst residues by chelation, to yield a clear polycarbonate product that is free from catalyst residues, and is thus suitable for use as a binding material in the ceramics industry where residual amounts of catalysts in the binder are burdensome.
摘要翻译： 本发明提供了在一种或多种碱金属或碱土金属催化剂存在下生产聚碳酸酯的方法，随后通过螯合除去催化剂残余物，得到不含催化剂残余物的透明聚碳酸酯产物，因此 适合用作陶瓷工业中的粘结材料，其中粘合剂中残留量的催化剂是繁重的。
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