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21 条记录 (耗时 0.021 秒)

    Diphenylmethane diisocyanate based polyisocyanates containing allophanate groups and having blocked isocyanate groups
    12.
    发明授权
    Diphenylmethane diisocyanate based polyisocyanates containing allophanate groups and having blocked isocyanate groups 失效
    含有脲基甲酸酯基并具有封端异氰酸酯基团的二苯基甲烷二异氰酸酯基聚异氰酸酯

    公开(公告)号：US5705593A

    公开(公告)日：1998-01-06

    申请号：US709801

    申请日：1996-09-10

    申请人： Lutz Schmalstieg ,  Josef Pedain ,  Theodor Engbert ,  Holger Casselmann ,  Frank Kobelka

    发明人： Lutz Schmalstieg ,  Josef Pedain ,  Theodor Engbert ,  Holger Casselmann ,  Frank Kobelka

    IPC分类号： C07C275/60 ,  C08G18/78 ,  C08G18/80 ,  C09D175/00 ,  C09D175/04 ,  C07C273/18

    CPC分类号： C08G18/7837 ,  C07C275/60 ,  C08G18/8093

    摘要： The present invention relates to polyisocyanates prepared from diphenylmethane diisocyanate wherein at least 95% of the isocyanate groups are blocked with diethyl malonate and wherein the polyisocyanates have, based on solids, A) a content of unblocked and blocked isocyanate groups (calculated as NCO) of 9% to 13%, B) a content of allophanate groups (calculated as C.sub.2 HN.sub.2 O.sub.3, molecular weight 101) of 3% to 9% and C) a calculated average functionality of 2.0 to 2.5. The present invention also relates to a process for the production of these polyisocyanates and to their use as crosslinking agents for organic polyhydroxyl compounds in polyurethane stoving lacquers.

    摘要翻译： 本发明涉及由二苯基甲烷二异氰酸酯制备的多异氰酸酯，其中至少95％的异氰酸酯基团用丙二酸二乙酯封闭，其中多异氰酸酯基于固体A具有未封端和封闭的异氰酸酯基团的含量（以NCO计算） 9％〜13％，B）脲基甲酸酯基（含量为C2HN2O3，分子量101）含量为3％〜9％，C）计算出的平均官能度为2.0〜2.5。 本发明还涉及一种生产这些多异氰酸酯的方法，以及它们在聚氨酯烘烤漆中用作有机多羟基化合物的交联剂的用途。

    Blocked polyisocyanates
    13.
    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

    申请人： Eberhard Konig ,  Theodor Engbert ,  Thomas Klimmasch ,  Manfred Bock

    发明人： Eberhard Konig ,  Theodor Engbert ,  Thomas Klimmasch ,  Manfred Bock

    IPC分类号： C08G18/08 ,  C08G18/02 ,  C08G18/80 ,  C09D175/00 ,  C09D175/04

    CPC分类号： C08G18/807 ,  C08G18/8058 ,  C08G18/8096

    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。

    Isocyanato-isocyanurate derivatives
    14.
    发明授权
    Isocyanato-isocyanurate derivatives 失效
    异氰酸酯 - 异氰脲酸酯衍生物

    公开(公告)号：US4698424A

    公开(公告)日：1987-10-06

    申请号：US666586

    申请日：1984-10-31

    申请人： Theodor Engbert ,  Hartmut Knofel ,  Gerhard Wegener

    发明人： Theodor Engbert ,  Hartmut Knofel ,  Gerhard Wegener

    IPC分类号： C07D251/34 ,  C08G18/00 ,  C08G18/79 ,  C09D175/00

    CPC分类号： C07D251/34 ,  C08G18/791

    摘要： The present invention relates to isocyanato-isocyanurates corresponding to the formula ##STR1## in which X.sub.1, X.sub.2 and X.sub.3 may be the same or different and represent radicals corresponding to the formula ##STR2## wherein R.sup.1 and R.sup.2 may be the same or different and represent hydrogen or C.sub.1 -C.sub.12 alkyl groups, and p is a whole or (on a statistical average) fractional number of from 1 to 5.The present invention also relates to a process for producing these isocyanato-isocyanurates and additionally relates to the use of the new isocyanato-isocyanurates, optionally blocked by blocking agents for isocyanate groups, as the isocyanate component in the produciton of isocyanate polyaddition products, preferably polyurethane lacquers.

    摘要翻译： 本发明涉及对应于式（I）的异氰酸根合 - 异氰脲酸酯，其中X 1，X 2和X 3可以相同或不同，并且表示与式（II）相应的基团，其中R 1和R 2可以是 相同或不同，表示氢或C 1 -C 12烷基，p是1至5的整数或（统计平均）分数。本发明还涉及一种制备这些异氰酸根合异氰脲酸酯的方法，另外 涉及在异氰酸酯加成产物（优选聚氨酯漆）的生产中使用新的异氰酸根合异氰脲酸酯，其任选被封闭剂用于异氰酸酯基团封端，作为异氰酸酯组分。

    Blocked polyisocyanates and their use in stoving lacquers
    18.
    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

    申请人： Eberhard Konig ,  Theodor Engbert

    发明人： Eberhard Konig ,  Theodor Engbert

    IPC分类号： C08G18/79 ,  C08G18/28 ,  C08G18/42 ,  C08G18/78 ,  C08G18/80 ,  C09D175/00 ,  C09D175/04

    CPC分类号： C08G18/8058 ,  C08G18/2865 ,  C08G18/4238 ,  C08G18/4277 ,  C08G18/807 ,  C08G18/808 ,  C08G2105/02

    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。

    Polyisocyanates blocked with a mixture of blocking agents
    19.
    发明授权
    Polyisocyanates blocked with a mixture of blocking agents 失效
    聚异氰酸酯用封闭剂的混合物封闭

    公开(公告)号：US5596064A

    公开(公告)日：1997-01-21

    申请号：US430775

    申请日：1995-04-27

    申请人： Eberhard K onig ,  Theodor Engbert

    发明人： Eberhard K onig ,  Theodor Engbert

    IPC分类号： C07C243/26 ,  C07C281/02 ,  C07D249/08 ,  C07D251/34 ,  C08G18/42 ,  C08G18/78 ,  C08G18/80 ,  C09D175/00 ,  C09D175/04

    CPC分类号： C08G18/807 ,  C07D251/34

    摘要： Blocked polyisocyanates containing aliphatically and/or cycloaliphatically bound isocyanate groups blocked by a mixture of blocking agents containingA) 30 to 70 equivalent % of 1,2,4-triazole,B) 30 to 70 equivalent % of 3,5-dimethylpyrazole, andC) 0 to 30 equivalent % of other blocking agents,a method of preparing these blocked polyisocyanates by blocking the isocyanate groups of a (cyclo)aliphatic polyisocyanate, wherein up to 20 NCO equivalent % of the isocyanate groups may optionally be reacted with compounds containing carboxylic acid hydrazide groups and isocyanate-reactive groups, and the use of the blocked polyisocyanates as crosslinking agents for organic polyhydroxyl compounds in one-component polyurethane stoving compositions.

    摘要翻译： 含有脂族和/或脂环结合的异氰酸酯基团的封闭的多异氰酸酯被封闭剂的混合物封闭，所述封闭剂含有A）30至70当量的1,2,4-三唑，B）30至70当量的3,5-二甲基吡唑，以及 C）0至30当量％的其它封闭剂，通过封闭（环）脂族多异氰酸酯的异氰酸酯基来制备这些封端多异氰酸酯的方法，其中至多20NCO当量％的异氰酸酯基团可任选地与含有 羧酸酰肼基团和异氰酸酯反应性基团，以及在单组分聚氨酯烘干组合物中使用封端多异氰酸酯作为有机多羟基化合物的交联剂。

    Continuous process for thermal splitting of carbamic acid esters
    20.
    发明授权
    Continuous process for thermal splitting of carbamic acid esters 失效
    氨基甲酸酯热分解的连续工艺

    公开(公告)号：US4692550A

    公开(公告)日：1987-09-08

    申请号：US485347

    申请日：1983-04-15

    申请人： Theodor Engbert ,  Gunter Hammen ,  Hartmut Knofel ,  Klaus Konig

    发明人： Theodor Engbert ,  Gunter Hammen ,  Hartmut Knofel ,  Klaus Konig

    IPC分类号： C07C263/04 ,  C07C27/00 ,  C07C31/02 ,  C07C31/125 ,  C07C67/00 ,  C07C241/00 ,  C07C265/00 ,  C07C265/04 ,  C07C265/12 ,  C07C118/00

    CPC分类号： C07C263/04

    摘要： N-monosubstituted carbamic acid esters are thermally split on a continuous basis in a tube reactor. The carbamic acid ester which is flowed down or passed over the inner wall of a tube reactor is thermally split at a temperature of from 150.degree. to 450.degree. C. and under a pressure of from 0.001 to 20 bar into at least two fractions. One fraction is predominantly isocyanate and a second fraction is predominantly hydroxyl compound. These fractions may be separated by removing one as a gaseous fraction formed under the splitting conditions from the head of the reactor and collecting the second fraction as a liquid which accumulates at the base of the reactor. If both fractions are gaseous under the splitting conditions, they are both removed from the head of the reactor and subsequently separated by fractionating columns for example. This process is particularly advantageous in that isocyanate and hydroxyl fractions are obtained in high yield without using a solvent.

    摘要翻译： N-单取代氨基甲酸酯在管式反应器中以连续的方式热分解。 流过或流过管式反应器内壁的氨基甲酸酯在150℃至450℃的温度和0.001至20巴的压力下热分解成至少两个馏分。 一个部分主要是异氰酸酯，第二部分主要是羟基化合物。 这些级分可以通过除去在分离条件下从反应器的头部形成的气态馏分来分离，并将第二馏分作为积聚在反应器底部的液体进行收集。 如果两个馏分在分解条件下都是气态的，则它们都从反应器的头部移出，并随后通过分馏塔例如分离。 该方法特别有利的是在不使用溶剂的情况下以高产率获得异氰酸酯和羟基部分。