Preparation of polyisocyanates containing biuret groups
    53.
    发明授权
    Preparation of polyisocyanates containing biuret groups 失效
    含有缩二脲基团的多异氰酸酯的制备

    公开(公告)号:US4192936A

    公开(公告)日:1980-03-11

    申请号:US8727

    申请日:1979-02-02

    摘要: This invention relates to an improved process for the preparation of polyisocyanate mixtures containing biuret groups by the reaction of organic diisocyanates with compounds which react with isocyanate groups to form biuret groups, to the polyisocyanate mixtures obtained by this process and to the use thereof for the preparation of polyurethane resins by the isocyanate polyaddition process.

    摘要翻译: 本发明涉及通过有机二异氰酸酯与异氰酸酯基团反应形成缩二脲基团的化合物反应制备含有缩二脲基团的多异氰酸酯混合物的改进方法,涉及通过该方法得到的多异氰酸酯混合物及其制备方法 的聚氨酯树脂通过异氰酸酯加聚方法。

    Pulverulent coating substance
    56.
    发明授权
    Pulverulent coating substance 失效
    粉末涂料物质

    公开(公告)号:US4150211A

    公开(公告)日:1979-04-17

    申请号:US878365

    申请日:1978-02-16

    摘要: The present invention relates to mixtures which are suitable for use as lacquer powders or as binders for lacquer powders and which are solid and capable of being pulverized at temperatures below about 40.degree. C. and liquid at temperatures above about 150.degree. C., which mixtures comprise(a) an isocyanate component having masked isocyanate groups;(b) a polyhydroxyl component; and, optionally(c) the conventional auxiliary agents and additives;Characterized in that the substance used as component (a) is a polyisocyanate having isocyanurate groups and isocyanate groups which are masked with lactams. The present invention also relates to the use of these mixtures as lacquer powders or as binders for lacquer powders for coating any heat-resistant substrate by the conventional coating methods employed for lacquer powders.

    摘要翻译: 本发明涉及适用于漆粉或作为漆粉的粘合剂的混合物,它们是固体并且能够在低于约40℃的温度下被粉碎,并且在高于约150℃的温度下是液体,这些混合物 包括(A)具有掩蔽的异氰酸酯基团的异氰酸酯组分; (B)聚羟基组分; (C)常规辅助剂和添加剂; 其特征在于用作组分(A)的物质是具有异氰酸酯基团的聚异氰酸酯和与LACTAMS一起被掩蔽的异氰酸酯基团。 本发明还涉及这些混合物作为漆粉末或作为用于通过用于漆粉末的常规涂布方法涂覆任何耐热基材的漆粉末的粘合剂的用途。

    Isocyanato-acylurethanes, a process for their preparation and their use
    60.
    发明授权
    Isocyanato-acylurethanes, a process for their preparation and their use 失效
    异氰酸酯 - 氨基甲酸酯,其制备方法及其用途

    公开(公告)号:US4921996A

    公开(公告)日:1990-05-01

    申请号:US227980

    申请日:1988-08-02

    摘要: The present invention relates to isocyanto-acylurethanes corresponding to Formula I ##STR1## wherein R has a valency of m+n and is a hydrocarbon group,R' is a hydrocarbon group andm and n may be identical or different, and each have a value of 1 or 2.The present invention also relates to a process for preparation of these isocyanato-acylurethanes which comprises reacting isocyanato-carboxylic acid chlorides with carbamic acid esters. Finally, the present invention is directed to the use of these isocyanato-acylurethanes as intermediate products for the production of thermally cross-linkable synthetic resins or synthetic resin precursors and also as intermediate products for the preparation of cross-linking agents for synthetic resins.

    摘要翻译: 本发明涉及对应于式I的异氰酸基 - 酰基氨基甲酸酯(I)其中R具有m + n的化合价并且是烃基,R'是烃基,m和n可以相同或不同,以及 各自具有1或2的值。本发明还涉及这些异氰酸酯基 - 氨基甲酸酯的制备方法,其包括使异氰酸根合羧酸氯化物与氨基甲酸酯反应。 最后,本发明涉及这些异氰酸酯基 - 氨基甲酸酯作为生产可热交联的合成树脂或合成树脂前体的中间产物以及用作制备用于合成树脂的交联剂的中间产品的用途。