Heat curable coating compositions and their use as top coats
    3.
    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。

    Blocked polyisocyanates
    4.
    发明授权
    Blocked polyisocyanates 失效
    封闭的多异氰酸酯

    公开(公告)号:US5523377A

    公开(公告)日:1996-06-04

    申请号:US336029

    申请日:1994-11-08

    摘要: Blocked (cyclo)aliphatic polyisocyanates wherein 30 to 70 equivalent-% of the isocyanate groups are blocked with butanone oxime, 30 to 70 equivalent-% of the isocyanate groups are blocked with 1,2,4-triazole and 0 to 30 equivalent-% of the isocyanate groups are blocked with other blocking agents; a method for their preparation by blocking lacquer polyisocyanates with these blocking agents, optionally with the prior, simultaneous or subsequent modification of the polyisocyanates with hydrazine derivatives containing one or more isocyanate-reactive groups; and the use of the blocked polyisocyanates as cross-linking agents for organic polyhydroxy compounds in one-component polyurethane stoving compositions.

    摘要翻译: 封闭的(环状)脂族多异氰酸酯,其中30〜70当量的异氰酸酯基团用丁酮肟封端,30〜70当量的异氰酸酯基团用1,2,4-三唑和0〜30当量% 的异氰酸酯基团被其它封闭剂封闭; 通过用这些封闭剂阻断漆多异氰酸酯的制备方法,任选地使用含有一个或多个异氰酸酯反应性基团的肼衍生物的多异氰酸酯的先前同时或随后的改性; 以及在单组分聚氨酯烘干组合物中使用封端的多异氰酸酯作为有机多羟基化合物的交联剂。

    Blocked polyisocyanates and their use in stoving lacquers
    5.
    发明授权
    Blocked polyisocyanates and their use in stoving lacquers 失效
    封闭的多异氰酸酯及其在烘烤漆中的用途

    公开(公告)号:US5691438A

    公开(公告)日:1997-11-25

    申请号:US633940

    申请日:1996-04-17

    摘要: Polyisocyanates which have 1,2,4,-triazole-blocked isocyanate groups and a blocked isocyanate group content of 7 to 14 wt. % and which are reaction products of A) a polyisocyanate component selected from (i) lacquer polyisocyanates based on (cyclo)aliphatic diisocyanates or (ii) mixtures of these lacquer polyisocyanates with cycloaliphatic diisocyanates of a maximum molecular weight of 300, B) 50 to 80 equivalent-%, based on the isocyanate groups of component A), of a monofunctional isocyanate group blocking agent containing at least 90 wt. % of 1,2,4-triazole, C) 10 to 30 equivalent-%, based on the isocyanate groups of component A), of a polyester component having an OH number of 56 to 250 and D) 0 to 20 equivalent-%, based on the isocyanate groups of component A), of selected hydrazine derivatives. The present invention is also directed to the use of these blocked polyisocyanates as crosslinking agents in one-component polyurethane stoving lacquers.

    摘要翻译: 具有1,2,4,4-三唑封端异氰酸酯基和封端异氰酸酯基含量为7-14重量%的聚异氰酸酯 %,并且其是A)多异氰酸酯组分的反应产物,所述多异氰酸酯组分选自(i)基于(环)脂族二异氰酸酯的漆多异氰酸酯或(ii)这些漆多异氰酸酯与最大分子量为300的脂环族二异氰酸酯的混合物,B)50至 80当量%,基于组分A)的异氰酸酯基团,含有至少90重量%的单官能异氰酸酯基封端剂。 %的1,2,4-三唑,C)10至30当量%,基于组分A)的异氰酸酯基团,其中OH数为56至250的聚酯组分和D为0至20当量% 基于组分A)的异氰酸酯基团,选择的肼衍生物。 本发明还涉及这些封端多异氰酸酯作为单组分聚氨酯烘烤漆中的交联剂的用途。

    Process for the preparation of polyisocyanates
    7.
    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
    8.
    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。

    Stabilized blocked isocyanates and their use in polyurethane stoving lacquers
    10.
    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。