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    Solutions of isocyanato-isocyanurates in plasticizers for polyvinyl chloride, a process for their production and their use as adhesion-improving additives in coating compositions based on plasticized polyvinyl chloride
    1.
    发明授权
    Solutions of isocyanato-isocyanurates in plasticizers for polyvinyl chloride, a process for their production and their use as adhesion-improving additives in coating compositions based on plasticized polyvinyl chloride 失效
    异氰酸根合异氰脲酸酯在聚氯乙烯增塑剂中的应用，它们的生产方法及其作为基于增塑聚氯乙烯的涂料组合物中的粘合改进添加剂的用途

    公开(公告)号：US4518729A

    公开(公告)日：1985-05-21

    申请号：US313842

    申请日：1981-10-22

    申请人： Peter Breidenbach ,  Helmut Hurnik ,  Josef Pedain

    发明人： Peter Breidenbach ,  Helmut Hurnik ,  Josef Pedain

    IPC分类号： C07D251/34 ,  C08G18/02 ,  C08K5/34 ,  C08L1/00 ,  C08L27/00 ,  C08L27/06 ,  C08L75/00 ,  C09D127/06

    CPC分类号： C08G18/022 ,  C09D127/06 ,  C08L75/00

    摘要： The present invention relates to solutions of isocyanato-isocyanurates based on mixtures of (i) 2,4- and/or 2,6-diisocyanato-toluene and (ii) 2,2'-, 2,4'- and/or 4,4'-diisocyanato-diphenyl methane in a molar ratio of (i) to (ii) of about 5:1 to 1:3, in plasticizers for polyvinyl chloride wherein the isocyanato-isocyanurates comprise about 1 to 50% by weight of the solution. The present invention also relates to a process for preparing these solutions which comprise partially trimerizing the isocyanate groups of the above diisocyanates using catalysts which accelerate the trimerization of isocyanate groups, the reaction either being conducted in the presence of plasticizers for polyvinyl chloride or the reaction product being dissolved in a plasticizer of this type, optionally after the separation of excess, unreacted diisocyanate.In addition, the present invention relates to the use of these solutions as adhesion-improving additives for coating compositions based on polyvinyl chloride. Besides improved adhesion, these compositions also demonstrate improved resistance to discoloration during thermal processing.

    摘要翻译： 本发明涉及基于（i）2,4-和/或2,6-二异氰酸酯 - 甲苯和（ii）2,2'-，2,4'-和/或4 - 的混合物的异氰酸根合异氰脲酸酯的溶液 ，（i）至（ii）的摩尔比为约5:1至1:3的4'-二异氰酸根合二苯基甲烷，其中异氰酸根合异氰脲酸酯的增塑剂包含约1至50重量％ 解。 本发明还涉及一种制备这些溶液的方法，该方法包括使用加速异氰酸酯基团三聚化的催化剂部分三聚上述二异氰酸酯的异氰酸酯基团，该反应在聚氯乙烯增塑剂或反应产物 溶解在这种类型的增塑剂中，任选地在分离过量的未反应的二异氰酸酯之后。 此外，本发明涉及这些溶液作为基于聚氯乙烯的涂料组合物的粘合改进添加剂的用途。 除了改进的粘合性，这些组合物还表现出改善的耐热处理过程中的变色性。