会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 33. 发明授权
    • Method of preparing spray elastomer systems
    • 制备喷雾弹性体体系的方法
    • US06399736B1
    • 2002-06-04
    • US09481245
    • 2000-01-11
    • Dudley J. Primeaux, IIRobert L. ZimmermanKenneth M. Hillman
    • Dudley J. Primeaux, IIRobert L. ZimmermanKenneth M. Hillman
    • C08G1832
    • C08G18/5024C08G18/10C08G18/3821C08G18/4804C08G2150/50C08G18/6685
    • 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.
    • 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。
    • 34. 发明授权
    • Amine separation process
    • 胺分离过程
    • US5189221A
    • 1993-02-23
    • US617339
    • 1990-11-19
    • Roger G. DuranleauRobert L. Zimmerman
    • Roger G. DuranleauRobert L. Zimmerman
    • C07C209/86C07C211/04
    • C07C209/86Y02P20/582
    • A mixture of C.sub.1 -C.sub.4 mono-, di- and trialkylamines is separated by adding at least about an equimolar amount, based on the amine mixture, of a formyldialkanolamine selected from the group consisting of formyldiethanolamine, formyl aminoethylethanolamine and formyl 2-(2-aminoethylamino)-ethanol to the alkyl amine mixture, at a temperature of about 120.degree. to about 160.degree. C. and a pressure of about 500 to about 3,000 psig to provide a reaction mixture comprising the trialkylamine, the formyl dialkylamine and the formyl monoalkylamine, together with unreacted formyldialkanolamine and the corresponding alkanolamine, by separately recovering the trialkyl amine, the formyl dialkylamine and the formyl monoalkylamine from the reaction mixture, by reacting the dialkyl amine with said alkanolamine at atmospheric pressure at temperature of about 120.degree. to about 140.degree. C. to provide a reaction mixture comprising the dialkyl amine and formyldialkanolamine, by recovering the dialkyl amine from the formyl reaction mixture, by separately reacting the monoalkyl amine with said alkanolamine at atmospheric pressure at a temperature of about 120.degree. to about 140.degree. C. to provide a reaction mixture comprising the monoalkyl amine and formyl dialkanolamine and recovering the monoalkyl amine from the reaction mixture.
    • 通过加入基于胺混合物的至少约等摩尔量的选自甲酰基二乙醇胺,甲酰基氨基乙基乙醇胺和甲酰基2-(2-甲氧基苯基)甲酰基二烷醇胺来分离C1-C4单 - ,二 - 和三烷基胺的混合物, 氨基乙基氨基) - 乙醇加入到烷基胺混合物中,在约120℃至约160℃的温度和约500至约3,000psig的压力下提供包含三烷基胺,甲酰基二烷基胺和甲酰基单烷基胺的反应混合物, 通过在大约120℃至大约140℃的温度下,在大气压下使二烷基胺与所述链烷醇胺反应,通过从反应混合物中分别回收三烷基胺,二烷基二烷基胺和甲酰基单烷基胺,与未反应的甲酰基二烷醇胺和相应的链烷醇胺一起 以提供包含二烷基胺和甲酰基二烷醇胺的反应混合物,通过从中回收二烷基胺 甲酰基反应混合物,通过在约120℃至约140℃的温度下,在大气压下分别使单烷基胺与所述链烷醇胺反应,得到包含单烷基胺和甲酰基二链烷醇胺的反应混合物,并从反应混合物中回收单烷基胺 。