Heat curable mixtures and their use for the formation of coatings on
heat resistant substrates
    2.
    发明授权
    Heat curable mixtures and their use for the formation of coatings on heat resistant substrates 失效
    可热固化的混合物及其在耐热基材上形成涂层的用途

    公开(公告)号:US5061775A

    公开(公告)日:1991-10-29

    申请号:US549508

    申请日:1990-07-06

    摘要: The present invention relates to a coating composition which may be cured at elevated temperature and is based onA) a polyisocyanate component containing at least one organic polyisocyanate having reversibly blocked isocyanate groups and a molecular weight of 398 to 25,000, excluding the weight of the blocking agent, the isocyanate groups being reversibly blocked with a secondary monoamine andB) an isocyanate reactive component containing at least one organic polyamine having a molecular weight of 60 to 499 and at least two primary amino groups.The present invention also relates to the use of these coating compositions for the formation of coatings on heat resistant substrates.

    摘要翻译: 本发明涉及一种涂料组合物,其可以在升高的温度下固化,并且基于A)含有至少一种具有可逆封闭的异氰酸酯基团并且分子量为398至25,000的有机聚异氰酸酯的多异氰酸酯组分,不包括嵌段的重量 异氰酸酯基团可以用二级单胺可逆地封闭,以及B)含有至少一种分子量为60-499和至少两个伯氨基的有机多胺的异氰酸酯反应性组分。 本发明还涉及这些涂料组合物在耐热基材上形成涂层的用途。

    Isocyanate prepolymers, a process for their production and their use in
one-component coating compositions
    4.
    发明授权
    Isocyanate prepolymers, a process for their production and their use in one-component coating compositions 失效
    异氰酸酯预聚物,其制备方法及其在单组分涂料组合物中的应用

    公开(公告)号:US5508372A

    公开(公告)日:1996-04-16

    申请号:US49750

    申请日:1993-04-19

    摘要: The present invention relates to a process for the production of storage stable prepolymers containing free isocyanate groups by reactinga) an organic polyisocyanate component having (cyclo)aliphatically bound isocyanate groups and a maximum functionality of 4.5 withb) one or more hydroxy-functional polyacrylate resins having a content of alcoholic hydroxy groups of 0.05 to 7% by weight at an equivalent ratio of isocyanate groups of component a) to hydroxyl groups of component b) of 3:1 to 40:1, wherein components a) and b) are selected to provide a value B of at most 4 when calculated in accordance with the formula: ##EQU1## wherein F.sub.1 and F.sub.2 represent the NCO and OH functionalities of components a) and b), F.sub.1 representing the component with the lower functionality when the components differ in functionality andval.sub.A /val.sub.I represents the OH/NCO equivalent ratio of components a) and b). The invention also relates to the NCO prepolymers obtained by this process and to their use for the production of one-component, moisture-curing coating compositions.

    摘要翻译: 本发明涉及通过使具有(环)脂族结合的异氰酸酯基团和最大官能度为4.5的有机多异氰酸酯组分与b)一种或多种羟基官能聚丙烯酸酯反应生产含有游离异氰酸酯基团的储存稳定的预聚物的方法 醇成分含量为0.05〜7重量%,成分a)的异氰酸酯基与成分b)的羟基的比例为3:1〜40:1的树脂,其中a)和b)成分为 其选择为当根据以下公式计算时提供至多为4的值B:其中F1和F2表示组分a)和b)的NCO和OH官能度,F1表示当组分具有较低官能度的组分时 功能不同,ValA / ValI代表组分a)和b)的OH / NCO当量比。 本发明还涉及通过该方法获得的NCO预聚物及其用于生产单组分湿固化涂料组合物的用途。

    Water dispersible compounds containing alkoxysilane groups
    6.
    发明授权
    Water dispersible compounds containing alkoxysilane groups 失效
    含有烷氧基硅烷基团的水分散化合物

    公开(公告)号:US5952445A

    公开(公告)日:1999-09-14

    申请号:US57675

    申请日:1998-04-09

    摘要: The present invention relates to compounds which are substantially free from isocyanate groups, have an alkoxysilane group content (calculated as Si, MW 28) of 1 to 6% by weight, based on the weight of the compounds, and containing sufficient chemically incorporated hydrophilic groups to form a stable dispersion with water, wherein the alkoxysilane groups are incorporated as the reaction products ofa) a polyisocyanate component having a minimum average functionality of 2.4 and containing at least 50% by weight of polyisocyanate adducts andb) compounds containing secondary amino groups and alkoxysilane groups.The present invention also relates to the use of these compounds for the preparation of coatings, sealants and adhesives.

    摘要翻译: 本发明涉及基本上不含异氰酸酯基团的化合物,其烷基硅烷基含量(以Si计,MW 28计)为1至6重量%,基于化合物的重量,并含有足够的化学引入的亲水基团 与水形成稳定的分散体,其中所述烷氧基硅烷基团作为a)具有最小平均官能度为2.4并且含有至少50重量%的多异氰酸酯加合物的多异氰酸酯组分的反应产物并且b)含有仲氨基的化合物 和烷氧基硅烷基。 本发明还涉及这些化合物在制备涂料,密封剂和粘合剂中的用途。

    Polyisocyanates containing allophanate groups
    8.
    发明授权
    Polyisocyanates containing allophanate groups 失效
    含有脲基甲酸酯基的多异氰酸酯

    公开(公告)号:US5672736A

    公开(公告)日:1997-09-30

    申请号:US555200

    申请日:1995-11-08

    CPC分类号: C08G18/7837 C07C275/60

    摘要: The present invention relates to a process for preparing polyisocyanates containing allophanate groups by reacting compounds a), which i) contain urethane groups, but which are substantially free of hydroxyl groups and isocyanate groups, ii) have an average of at least two urethane groups per molecule, iii) are prepared by reacting organic isocyanates a1) with organic hydroxyl compounds a2) and iv) have an average molecular weight of at most 2,500, with excess quantities, based on the urethane groups, of distillable organic polyisocyanates b) to form polyisocyanates containing allophanate groups and subsequently removing by distillation the unreacted excess of component b) to a residual content of less than 0.5 wt. %, provided that polyisocyanates a1) and polyisocyanates b) are different. The present invention also relates to the products obtained from this process and to their use as binders or binder components in coating compositions.

    摘要翻译: 本发明涉及通过使具有氨基甲酸酯基但不含羟基和异氰酸酯基的化合物a)反应制备含有脲基甲酸酯基团的多异氰酸酯的方法,ii)基本上不含羟基和异氰酸酯基团,ii)平均具有至少两个氨基甲酸酯基团 分子,iii)通过使有机异氰酸酯a1)与有机羟基化合物a2)和iv)具有至多2500的平均分子量,基于氨基甲酸酯基团的过量的可蒸馏有机多异氰酸酯b)来制备,以形成多异氰酸酯 含有脲基甲酸酯基团,随后通过蒸馏将未反应的组分b)过量除去至少于0.5wt。 %,条件是多异氰酸酯a1)和多异氰酸酯b)不同。 本发明还涉及从该方法获得的产品及其作为涂料组合物中的粘合剂或粘合剂组分的用途。

    Olefinically unsaturated isocyanates
    10.
    发明授权
    Olefinically unsaturated isocyanates 失效
    烯属不饱和异氰酸酯

    公开(公告)号:US5459214A

    公开(公告)日:1995-10-17

    申请号:US195726

    申请日:1994-02-11

    摘要: The present invention relates to olefinically unsaturated, urethane group-containing isocyanates which are prepared by reacting at an NCO/OH equivalent ratio of 4 to 40a) an isocyanate component substantially containing urethane group-free cycloaliphatic diisocyanates withb) an unsaturated alcohol component substantially containing monohydric olefinically unsaturated alcoholsand subsequently removing distillable unreacted isocyanates by distillation. The present invention also relates to a process for the preparation of these isocyanates and to their use as a binder component in one-component, coating compositions which may be cured at room temperature.

    摘要翻译: 本发明涉及通过使NCO / OH当量比为4至40反应制备的烯属不饱和的含氨基甲酸酯基的异氰酸酯a)基本上含有不含氨基甲酸酯基的脂环族二异氰酸酯的异氰酸酯组分和b)不饱和醇组分基本上 含有一元烯属不饱和醇,然后通过蒸馏除去可蒸馏的未反应的异氰酸酯。 本发明还涉及一种制备这些异氰酸酯的方法以及它们在单组分涂料组合物中作为粘合剂组分的用途,其可以在室温下固化。