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    • 21. 发明授权
    • Polyether allophanates stable towards discolouration
    • 聚醚脲基甲酸酯对变色稳定
    • US07038003B2
    • 2006-05-02
    • US11087994
    • 2005-03-23
    • Michael MagerJoachim SimonMalte Homann
    • Michael MagerJoachim SimonMalte Homann
    • C08G18/10C08G18/48C07C275/60C07C271/66C07C269/02
    • C08G18/4866C08G18/222C08G18/7837
    • A process for preparing polyisocyanate prepolymers containing allophanate structural units that includes reacting a) one or more polyisocyanates with b) one or more polyetherpolyols containing less than or equal to 0.02 milliequivalent of unsaturated end groups per gram of polyol and having a polydispersity of from 1.0 to 1.5 and/or an OH functionality of greater than or equal to 1.9  to provide an NCO-functional polyurethane prepolymer containing urethane groups that are partly or fully allophanatized by further reaction with c) polyisocyanates, which may be different from those from a), and d) catalysts and optionally adding e) acidic additives before, during and/or after the allophanatization. The polyisocyanate prepolymers can be used to produce coatings, adhesive bonds and/or seals. The coatings include one or more of the polyisocyanate prepolymers, and at least one diol or polyol and/or at least one linear and/or cyclic, aliphatic, araliphatic and/or aromatic diamine or polyamine.
    • 一种制备含有脲基甲酸酯结构单元的多异氰酸酯预聚物的方法,包括使a)一种或多种多异氰酸酯与b)一种或多种含有少于或等于0.02毫当量的不饱和端基/克多元醇的聚醚多元醇,其多分散性为1.0〜 1.5和/或OH官能度大于或等于1.9,以提供含有氨基甲酸酯基团的NCO官能聚氨酯预聚物,所述聚氨酯预聚物通过与c)不同的多异氰酸酯进一步反应而部分或完全醛化, d)催化剂,并任选地加入e)酸性添加剂在醛化之前,期间和/或之后。 多异氰酸酯预聚物可用于生产涂料,粘合剂粘合剂和/或密封件。 涂层包括一种或多种多异氰酸酯预聚物,和至少一种二醇或多元醇和/或至少一种直链和/或环状脂族,芳脂族和/或芳族二胺或多胺。
    • 22. 发明申请
    • Process for preparing polyisocyanate prepolymers containing allophanate structural units
    • 制备含有脲基甲酸酯结构单元的多异氰酸酯预聚物的方法
    • US20050222366A1
    • 2005-10-06
    • US11087462
    • 2005-03-23
    • Michael MagerJoachim SimonMalte Homann
    • Michael MagerJoachim SimonMalte Homann
    • C08G18/10C08G18/22C08G18/48C08G18/78C08K5/095C08K5/42C08G18/28
    • C08G18/222C08G18/10C08G18/4866C08G18/7837C08K5/095C08K5/42C08L75/00
    • A method of preparing and stabilizing polyisocyanates that contain allophanate groups that are based on aliphatic and/or cycloaliphatic polyisocyanates. The method includes reacting a) one or more aliphatic and/or cycloaliphatic polyisocyanates with b) one or more polyhydroxy compounds to give an NCO-functional polyurethane prepolymer whose resultant urethane groups are reacted further with c) aliphatic and/or cycloaliphatic polyisocyanates, which may be different from those of a), and d) in the presence of catalysts and are thereby fully or partly allophanatized, and before, during and/or after the allophanatization, adding e) acidic additives. The polyisocyanates can be used in coatings, adhesive bonds or seals. Such coatings include the stabilized polyisocyanate prepolymers, at least one diol or polyol and/or at least one linear and/or cyclic, aliphatic, araliphatic and/or aromatic diamine or polyamine. The coatings can be used to coat substrates.
    • 制备和稳定含有基于脂族和/或脂环族多异氰酸酯的脲基甲酸酯基团的多异氰酸酯的方法。 该方法包括使a)一种或多种脂族和/或脂环族多异氰酸酯与b)一种或多种多羟基化合物反应,得到NCO-官能的聚氨酯预聚物,其得到的氨基甲酸酯基团进一步与c)脂族和/或脂环族多异氰酸酯反应, 与a)不同,d)在催化剂存在下,由此完全或部分醛化,并且在醛化之前,期间和/或之后加入e)酸性添加剂。 多异氰酸酯可用于涂料,粘合剂或密封件。 这样的涂层包括稳定的多异氰酸酯预聚物,至少一种二醇或多元醇和/或至少一种直链和/或环状脂族,芳脂族和/或芳族二胺或多胺。 涂层可用于涂覆基材。
    • 23. 发明申请
    • Process for preparing polyether allophanates using zinc compound catalysts
    • 使用锌化合物催化剂制备聚醚脲基甲酸酯的方法
    • US20050222365A1
    • 2005-10-06
    • US11087249
    • 2005-03-23
    • Michael MagerJoachim SimonMalte Homann
    • Michael MagerJoachim SimonMalte Homann
    • C07C273/18C07C275/60C08G18/78C08G18/28
    • C07C273/1836C07C275/60
    • A process for preparing polyisocyanate prepolymers containing allophanate structural units and prepolymers prepared thereby. The process includes the steps of reacting a) one or more aliphatic and/or cycloaliphatic polyisocyanates with b) one or more polyhydroxy compounds to give an NCO-functional polyurethane prepolymer, whose resultant urethane groups are fully or partly allophanatized; reacting the prepolymer with c) polyisocyanates, which may be different from those of a), and using d) zinc(II) compounds as catalysts. The prepolymers can be used to produce coatings, adhesive bonds and/or seals. The coatings can include A) one or more of the prepolymers and B) at least one diol or polyol and/or C) at least one linear and/or cyclic, aliphatic, araliphatic and/or aromatic diamine or polyamine. The coatings can be used to coat substrates.
    • 一种制备含有脲基甲酸酯结构单元和由此制备的预聚物的多异氰酸酯预聚物的方法。 该方法包括以下步骤:使a)一种或多种脂族和/或脂环族多异氰酸酯与b)一种或多种多羟基化合物反应,得到NCO-官能的聚氨酯预聚物,其得到的氨基甲酸酯基完全或部分醛化; 使预聚物与c)多异氰酸酯反应,其可以与a)不同,并且使用d)锌(II)化合物作为催化剂。 预聚物可用于生产涂料,粘合剂粘合剂和/或密封件。 涂层可以包括A)一种或多种预聚物和B)至少一种二元醇或多元醇和/或C)至少一种直链和/或环状,脂族,芳脂族和/或芳族二胺或多胺。 涂层可用于涂覆基材。