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Diisocyanates and diisocyanate mixtures based on diphenylmethane, processes for their production and their use as isocyanate component in the production of polyurethane plastics by the isocyanate polyaddition process

机译：基于二苯甲烷的二异氰酸酯和二异氰酸酯混合物，其生产方法以及在通过异氰酸酯加成法生产聚氨酯塑料中用作异氰酸酯组分的用途

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摘要

The instant invention is directed to diisocyanates based on diphenylmethane which may be methyl-substituted and which are characterized in particular by isocyanate groups in the 3,4'- and optionally in the 3,2'-position. The instant invention is also directed to a number of independent processes for their production and to their use as isocyanate component in the production of polyurethanes.

机译：本发明涉及基于二苯甲烷的二异氰酸酯，该二异氰酸酯可以被甲基取代，并且其特征尤其在于3，4′-和任选地3，2′-位的异氰酸酯基。本发明还涉及许多独立的生产方法及其在聚氨酯生产中用作异氰酸酯组分的用途。

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公开/公告号US4761498A

专利类型
公开/公告日1988-08-02

原文格式PDF
申请/专利权人 BAYER AKTIENGESELLSCHAFT;
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申请/专利号US19870028265
发明设计人 HARTMUT KNOFEL;MICHAEL BROCKELT;GERHARD WEGENER;
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申请日1987-03-20
分类号C07C118/00;C08G18/00;
国家 US
入库时间 2022-08-22 06:48:50

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