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    Crystallization-stable MDI allophanates by a two-stage process
    17.
    发明申请
    Crystallization-stable MDI allophanates by a two-stage process 审中-公开
    通过两步法制备结晶稳定的MDI脲基甲酸酯

    公开(公告)号：US20060084776A1

    公开(公告)日：2006-04-20

    申请号：US11251146

    申请日：2005-10-14

    申请人： Joachim Simon ,  Gerhard Ruttmann ,  Burkhard Kohler

    发明人： Joachim Simon ,  Gerhard Ruttmann ,  Burkhard Kohler

    IPC分类号： C08G18/00

    CPC分类号： C08G18/7657 ,  C08G18/7837

    摘要： The present invention relates to new diphenylmethane diisocyanate (i.e. MDI) allophanates and to a process for their preparation. These new MDI allophanates are prepared by a two-stage process, which in spite of a relatively high degree of oligomerization are distinguished by crystallization stability.

    摘要翻译： 本发明涉及新的二苯基甲烷二异氰酸酯（即MDI）脲基甲酸酯及其制备方法。 这些新的MDI脲基甲酸酯通过两阶段方法制备，尽管通过结晶稳定性区分了较低程度的低聚。

    Acylsuccinic acid polyesters, a process for their preparation and their use in thermosetting plastics and coatings
    19.
    发明授权
    Acylsuccinic acid polyesters, a process for their preparation and their use in thermosetting plastics and coatings 失效
    酰基琥珀酸聚酯，其制备方法及其在热固性塑料和涂料中的应用

    公开(公告)号：US5929197A

    公开(公告)日：1999-07-27

    申请号：US888871

    申请日：1997-07-07

    申请人： Burkhard Kohler ,  Rolf-Volker Meyer

    发明人： Burkhard Kohler ,  Rolf-Volker Meyer

    IPC分类号： C08G63/91 ,  C09D167/02 ,  C08G14/12 ,  C08L67/00 ,  C08L75/06

    CPC分类号： C08G63/918 ,  C09D167/02

    摘要： The present invention relates to a process for preparing acylsuccinic acid polyesters by reactingA) a polyester, which is the reaction product oi) maleic acid, maleic acid esters, maleic anhydride, fumaric acid and/or fumaric acid esters and optionally other diacids, monoacids or their derivatives withii) diols and optionally monofunctional alcohols,wherein the molar ratio of diols to diacids and their derivatives is 0.667:1 to 1.5:1, and the molar ratio of maleic acid and its derivatives+ fumaric acid and its derivatives to other diacids and their derivatives is greater than 0.15:1, and the molar ratio of monofunctional compounds to difunctional compounds is less than 0.4:1, withB) aliphatic C.sub.2 -C.sub.22 aldehydes and/or cycloaliphatic C.sub.6 -C.sub.20 aldehydes,in the presence of 0.2 to 10 % by weight (based on the weight of polyester) of free radical initiators at a temperature of 60 to 160.degree. C. and a pressure of 1 to 20 bar wherein the molar ratio of aldehydes to maleic acid ester and fumaric acid ester units is 1:1 to 50:1, and distilling off excess aldehyde.The present invention also relates to the acylsuccinic acid polyesters prepared by this process and to their use for the production of thermosetting plastics by reaction with di- or polyisocyanates such that 0.5 to 2 equivalents of isocyanate groups are used for each equivalent of acylsuccinic acid ester units.

    摘要翻译： 本发明涉及一种制备酰基琥珀酸聚酯的方法，该方法是通过使A）聚酯，即马来酸反应产物，马来酸酯，马来酸酐，富马酸和/或富马酸酯以及任选的其它二酸，单酸 或其衍生物与ii）二醇和任选的单官能醇，其中二醇与二酸及其衍生物的摩尔比为0.667:1至1.5:1，并且马来酸及其衍生物+富马酸及其衍生物与其它二酸的摩尔比 其衍生物大于0.15：1，单官能化合物与双官能化合物的摩尔比小于0.4：1，B）脂族C 2 -C 22醛和/或脂环族C 6 -C 20醛在0.2〜 在60至160℃的温度下，10重量％（基于聚酯的重量）的自由基引发剂和1至20巴的压力，其中醛与马来酸酯和fuma的摩尔比 蓖麻油酸酯单位为1：1至50：1，并蒸发过量的醛。 本发明还涉及通过该方法制备的酰基琥珀酸聚酯及其用于通过与二异氰酸酯或多异氰酸酯反应生产热固性塑料的用途，使得每当量的酰基琥珀酸酯单元使用0.5至2当量的异氰酸酯基团 。