Stabilized blocked isocyanates and their use in polyurethane stoving lacquers
    1.
    发明授权
    Stabilized blocked isocyanates and their use in polyurethane stoving lacquers 失效
    稳定的封闭异氰酸酯及其在聚氨酯烘烤漆中的应用

    公开(公告)号:US06242530B1

    公开(公告)日:2001-06-05

    申请号:US08922818

    申请日:1997-09-03

    IPC分类号: C08K53435

    CPC分类号: C08G18/8058 C08G18/80

    摘要: The present invention relates to (cyclo)aliphatic polyisocyanates which have a content of blocked and unblocked isocyanate groups (calculated a NCO) of 5 to 25 wt. %, in which at least 95% of the isocyanate groups are present in a form blocked with blocking agents, and which also contain 0.1 to 5.0 wt. % of amines having a structural unit corresponding to formula (I) The present invention also relates to the use of the blocked polyisocyanates according to the invention as crosslinking agents for organic polyhydroxyl compounds in 1C-PUR stoving lacquers, especially for automotive clearcoats and coil coating lacquers.

    摘要翻译: 本发明涉及(环状)脂族多异氰酸酯,它们的封端和未封端的异氰酸酯基团的含量(NCO计算)为5〜25wt。 %,其中至少95%的异氰酸酯基以封闭剂封闭的形式存在,并且还含有0.1至5.0wt。 具有对应于式(I)的结构单元的胺的%本发明还涉及根据本发明的封端多异氰酸酯作为有机多羟基化合物的交联剂在1C-PUR烘烤漆中的用途,特别是用于汽车清漆和卷材涂层 漆。

    Process for the preparation of polyisocyanates
    3.
    发明授权
    Process for the preparation of polyisocyanates 失效
    制备多异氰酸酯的方法

    公开(公告)号:US4388246A

    公开(公告)日:1983-06-14

    申请号:US354687

    申请日:1982-03-04

    CPC分类号: C07C263/04

    摘要: Polyisocyanates are prepared by thermally splitting a carbamate corresponding to the formula:R.sup.1 (NH--CO--O--R.sup.2).sub.nin which R.sup.1, R.sup.2 and n are as defined herein into the corresponding isocyanate and alcohol. The splitting reaction is carried out at a temperature of from 150.degree. to 350.degree. C., at a pressure of from 0.001 to 20 bar and in the presence of an auxiliary agent. Suitable auxiliary agents are hydrogen chloride, organic acid chlorides, compounds having an alkylating effect and organotin (IV) chlorides. Inert solvents and catalysts may also be employed in the splitting products. The thus-produced isocyanate and alcohol are then separated, if necessary.

    摘要翻译: 聚异氰酸酯是通过热分解相应于下式的R1(NH-CO-O-R2)n的氨基甲酸酯制备的,其中R 1,R 2和n如本文所定义,其相应的异氰酸酯和醇。 分解反应在150至350℃的温度下,在0.001至20巴的压力下和在助剂的存在下进行。 合适的辅助剂是氯化氢,有机酰氯,具有烷基化作用的化合物和氯化有机锡(IV)。 惰性溶剂和催化剂也可用于裂解产物中。 如果需要,然后分离由此产生的异氰酸酯和醇。

    Colloidal metal oxides having blocked isocyanate groups
    5.
    发明授权
    Colloidal metal oxides having blocked isocyanate groups 失效
    具有封端异氰酸酯基团的胶体金属氧化物

    公开(公告)号:US5998504A

    公开(公告)日:1999-12-07

    申请号:US54590

    申请日:1998-04-03

    摘要: The present invention relates to colloidal metal oxides having blocked isocyanate groups, which are based on the reaction product ofA) blocked isocyanate group-containing silanes corresponding to formula (I) ##STR1## wherein R represents hydrogen or an organic group having 1 to 40 carbon atoms,X, Y and Z represent identical or different organic groups having 1 to 30 carbon atoms which are inert to isocyanate groups below 100.degree. C., provided that at least one of these groups is a C.sub.1 -C.sub.4 -alkoxy group,Q represents an organic group which contains at least one isocyanate group reacted with a blocking agent andn is 2, 3 or 4 withB) colloidal metal oxides selected from Al, Si, Ti, Ta, W, Hf, Zr, Sn and Y.The present invention also relates to the use of modified metal oxides, either alone or in combination with compounds containing at least two isocyanate-reactive groups, for the preparation of optionally expanded polyurethane plastics, lacquers or coating agents.

    摘要翻译: 本发明涉及具有封端异氰酸酯基团的胶态金属氧化物,其基于A)封端异氰酸酯基硅烷对应于其中R表示氢或具有1至40个碳原子的有机基团的式(I)的反应产物, X,Y和Z表示相同或不同的具有1至30个碳原子的有机基团,其对于低于100℃的异氰酸酯基团是惰性的,条件是这些基团中的至少一个是C 1 -C 4 - 烷氧基,Q表示有机 含有至少一个与封闭剂反应的异氰酸酯基团的基团,n为2,3或4,B)选自Al,Si,Ti,Ta,W,Hf,Zr,Sn和Y的胶态金属氧化物。本发明 还涉及使用改性金属氧化物,单独或与含有至少两个异氰酸酯反应性基团的化合物组合,用于制备任选发泡的聚氨酯塑料,漆或涂层剂。

    Heat curable coating compositions and their use as top coats
    6.
    发明授权
    Heat curable coating compositions and their use as top coats 失效
    热固化涂料组合物及其作为顶涂层的用途

    公开(公告)号:US5532313A

    公开(公告)日:1996-07-02

    申请号:US436938

    申请日:1995-05-08

    摘要: The present invention relates to heat curable coating compositions containing a binder consisting essentially ofA) prepolymers which have butanone oxime-blocked isocyanate groups and are prepared fromA1) (cyclo)aliphatic polyisocyanates andA2) an organic polyhydroxyl component in whichA2.1 ) 50 to 90% of the hydroxyl equivalents of component A2) are from polyester polyols,A2.2) 10 to 50% of the hydroxyl equivalents of component A2) are from polyacrylate polyols and/or alkoxylation products of bisphenol A andA2.3) 0 to 30 of the hydroxyl equivalents of component A2) are from other organic polyhydroxyl compounds, andB) cycloaliphatic polyamines having at least two primary amino groups,wherein components A) and B) are present in an equivalent ratio of blocked isocyanate groups to amino groups of 1:0.8 to 1:1.2.The invention also relates to the use of these coating compositions for producing decorative, flying-stone-resistant, thick topcoats on metallic substrates.

    摘要翻译: 本发明涉及含有基本上由以下组成的粘合剂的热固化涂料组合物:A)具有丁酮肟封端异氰酸酯基团的预聚物,并由A1)(环)脂族多异氰酸酯和A2)有机多羟基组分制备,其中A2.1) 组分A2)的羟基当量的50至90%来自聚酯多元醇A2.2)组分A2)的10至50%的羟基当量来自双酚A和A2.3的聚丙烯酸酯多元醇和/或烷氧基化产物) 组分A2)的羟基当量的0至30是来自其它有机多羟基化合物,以及B)具有至少两个伯氨基的脂环族多胺,其中组分A)和B)以封端异氰酸酯基与氨基的当量比存在 组为1:0.8至1:1.2。 本发明还涉及这些涂料组合物用于在金属基材上生产装饰性,防飞溅的厚面漆的用途。

    Moisture-hardening coating composition and method for its production
    9.
    发明授权
    Moisture-hardening coating composition and method for its production 失效
    水分硬化涂料组合物及其生产方法

    公开(公告)号:US5081203A

    公开(公告)日:1992-01-14

    申请号:US543641

    申请日:1990-06-26

    摘要: The present invention relates to of a coating composition containing a moisture-hardening binder based on organic polyisocyanates which is prepared by forming a mixture containing at least those auxiliaries and additives which are not completely dry and an isocyanate component a) which has an average NCO functionality of 1.05 to 1.8 and is based on the reaction product ofa1) a polyisocyanate mixture of the diphenylmethane series witha2) a monohydric C.sub.1-26 alkanol which may contain ether bridges,and after the isocyanate/water reaction is substantially complete, further mixing the mixture with an isocyanate component b) which has an isocyanate content of 2.5 to 25% by weight and any remaining auxiliaries and additives, the quantities of components a) and b) corresponding to a weight ratio of a) to b) of 1:1 to 1:30.The present invention also relates to a process for the preparation of these coating compositions.

    摘要翻译: 本发明涉及包含基于有机多异氰酸酯的湿固化粘合剂的涂料组合物,其通过形成至少含有那些不完全干燥的那些助剂和添加剂的混合物和具有平均NCO官能度的异氰酸酯组分a) 为1.05〜1.8,并且基于a1)二苯基甲烷系列的多异氰酸酯混合物与a2)可能含有醚桥的一元C1-26链烷醇的反应产物,并且在异氰酸酯/水反应基本上完成后,进一步混合 与异氰酸酯含量为2.5至25重量%的异氰酸酯组分b)和任何其余助剂和添加剂的混合物,a)和b)的组分的量对应于a)至b)的重量比为1:1 至1:30。 本发明还涉及制备这些涂料组合物的方法。