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8 条记录 (耗时 0.03 秒)

    Pulverulent coating substance
    2.
    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

    申请人： Hanns P. Muller ,  Kuno Wagner ,  Hans J. Kreuder

    发明人： Hanns P. Muller ,  Kuno Wagner ,  Hans J. Kreuder

    IPC分类号： C09D5/03 ,  C08G18/00 ,  C08G18/79 ,  C08G18/80 ,  C09D5/46 ,  C09D175/00 ,  C09D175/04 ,  C08G18/08 ,  C08G18/77

    CPC分类号： C08G18/791 ,  C08G18/8074 ,  C09D175/04 ,  C08G2150/20 ,  Y10S524/904

    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。

    Lacquer polyisocyanates, process for the production thereof and use thereof as isocyanate component in thermosetting two-component polyurethane lacquers
    8.
    发明授权
    Lacquer polyisocyanates, process for the production thereof and use thereof as isocyanate component in thermosetting two-component polyurethane lacquers 失效
    漆聚异氰酸酯，其制备方法和用作热固性双组分聚氨酯漆中的异氰酸酯组分

    公开(公告)号：US4369301A

    公开(公告)日：1983-01-18

    申请号：US312030

    申请日：1981-10-16

    申请人： Eberhard Konig ,  Josef Pedain ,  Hans J. Kreuder

    发明人： Eberhard Konig ,  Josef Pedain ,  Hans J. Kreuder

    IPC分类号： C09D175/00 ,  C08G18/38 ,  C08G18/80

    CPC分类号： C08G18/8058 ,  C08G18/3823 ,  C08G18/3831 ,  C08G18/8061 ,  C08G2150/20

    摘要： The present invention relates to lacquer polyisocyanates which contain about 0 to 8% free isocyanate groups, about 10 to 28% blocked isocyanate groups and about 2 to 10% of the structural units, --NH--NH--CO--O, all percentages based on the weight of the polyisocyanates, but excluding the weight of the blocking agent. Also provided is a process for preparing these polyisocyanates which comprises reacting about 10 to 30 mol % of the isocyanate groups of an organic polyisocyanate with reaction products which have (i) alcoholic hydroxyl groups and (ii) structural units of the formula, --O--CO--NH--NH--CO--O--, and/or of the formula H.sub.2 N--NH--CO--O--, with the formation of urethane groups and optionally groups corresponding to the formula, --NH--NH--CO--O--, and reacting about 50 to 90 mol % of the isocyanate groups of the organic polyisocyanate with a blocking agent. The reaction products containing alcoholic hydroxyl groups are obtained by reacting 1 mol of hydrazine or of hydrazine hydrate with about 1 to 2 mols of a cyclic carbonate. A final object of the present invention is the use of the new lacquer polyisocyanates as the isocyanate component in thermosetting, two-component polyurethane lacquers.

    摘要翻译： 本发明涉及含有约0至8％游离异氰酸酯基团，约10至28％封端异氰酸酯基团和约2至10％结构单元-NH-NH-CO-O的漆多异氰酸酯，所有百分比均基于 多异氰酸酯的重量，但不包括封闭剂的重量。 还提供了制备这些多异氰酸酯的方法，其包括使有机多异氰酸酯的约10至30mol％的异氰酸酯基团与具有（i）醇羟基的反应产物和（ii）式的结构单元-O- CO-NH-NH-CO-O-，和/或式H2N-NH-CO-O-，形成氨基甲酸酯基团和任选地对应于式-NH-NH-CO-O-， 并使有机多异氰酸酯的异氰酸酯基团的约50-90％（摩尔）与封端剂反应。 含有醇羟基的反应产物是通过使1摩尔肼或水合肼与约1至2摩尔环状碳酸酯反应而获得的。 本发明的最终目的是在热固性双组分聚氨酯漆中使用新的漆多异氰酸酯作为异氰酸酯组分。