Polyurethane-polyurea dispersions and their use as coating compositions
    11.
    发明申请
    Polyurethane-polyurea dispersions and their use as coating compositions 审中-公开
    聚氨酯 - 聚脲分散体及其作为涂料组合物的用途

    公开(公告)号:US20070049684A1

    公开(公告)日:2007-03-01

    申请号:US11495394

    申请日:2006-07-28

    Abstract: The present invention relates to aqueous polyurethane-polyurea dispersions wherein the dispersions contain polyurethane-polyureas that are the reaction products of I) polyisocyanates having an isocyanate group functionality of ≧2, II) a polymeric polyol component containing a) 50% to 100% by weight, based on the weight of polyol component II), of polyester polyols having a number average molecular weight Mn of 200 to 8000 g/mol and synthesized from a hydroxyl component and an acid component wherein 50% to 100% by weight, based on the total weight of the hydroxyl component used to prepare polyester polyols II.a), are diols corresponding to formula 1), wherein n is 1 and/or 2, and b) 0% to 50% by weight, based on the weight of polyol component II), of polymeric polyols other than polyester polyols a), and III) optionally other isocyanate-reactive compounds. The present invention also relates to a process for preparing these aqueous dispersions, to coating compositions containing these aqueous dispersions and to substrates coated with these coating compositions, in particular leather and textile substrates.

    Abstract translation: 本发明涉及水性聚氨酯 - 聚脲分散体,其中分散体含有聚氨酯 - 聚脲,它是I)具有异氰酸酯官能度> = 2的多异氰酸酯的反应产物,II)含有a)50%至100% 基于多元醇组分II)的重量,数均分子量M> 200至8000g / mol并由羟基组分和酸组分合成的聚酯多元醇,其中50 基于用于制备聚酯多元醇II.a)的羟基组分的总重量为100至100重量%是对应于式1)的二醇,其中n为1和/或2,以及b)0%至50 基于多元醇组分II)的重量%,除聚酯多元醇之外的聚合多元醇a)和III)任选其它异氰酸酯反应性化合物。 本发明还涉及一种制备这些水性分散体的方法,含有这些水性分散体的涂料组合物和涂覆有这些涂料组合物,特别是皮革和纺织品基材的基材。

    Aqueous polyurethane dispersions
    13.
    发明申请

    公开(公告)号:US20050222368A1

    公开(公告)日:2005-10-06

    申请号:US11093158

    申请日:2005-03-29

    Abstract: Polyurethane which is obtainable by reacting a) an NCO-containing prepolymer composed of a1) at least one polyesterpolyol, preferably polycarbonatepolyol, carbonate group-free polyesterpolyol, polyestercarbonatepolyol, polyesteramidepolyol, in particular polyesterdiol, having an average molecular weight, determined as the number average, greater than or equal to 500 g/mol, preferably from 500 to 6000 g/mol, in particular from 500 to 4000 g/mol, very particularly preferably from 800 to 4000 g/mol, and a2) at least one polyetherpolyol which differs from a1) and is preferably polyalkylene glycol, such as polyethylene glycol, polypropylene glycol, polytetramethylene glycol, polyhexamethylene glycol and copolyethers, in particular those containing building blocks from the group consisting of ethyleneoxy, propyleneoxy, tetramethyleneoxy and/or hexamethyleneoxy, having a molecular weight, determined as the number average, greater than or equal to 500, preferably from 500 to 10 000 g/mol, in particular from 500 to 4000, particularly preferably from 800 to 4000, g/mol, preferably a polyetherdiol, and a3) at least one polyol, in particular diol, having a molecular weight of less than 500 g/mol, which carries one or more ionic groups and/or one or more potentially ionic groups, preferably carries one or more carboxylate groups, and a4) at least one aliphatic polyisocyanate, preferably diisocyanate, preferably having a molecular weight of less than 500 g/mol, in particular from 112 to 400 g/mol, particularly preferably from 168 to 262 g/mol, and a5) optionally a nonionic polyol, preferably diol having a molecular weight of less than 500 g/mol, preferably from 61 to 499 g/mol, and a6) optionally a monoalcohol with b) at least one polysiloxane reactive towards NCO groups and having a molecular weight, determined as the number average, of less than 1500 g/mol, preferably having 1 to 6, in particular 1 to 3, amino and/or hydroxyl groups reactive towards NCO groups, in particular amino groups, and c) at least one amine reactive towards NCO groups and having an average amino functionality of from 1 to 6 and a molecular weight of less than 500 g/mol (molecular weight determined as the number average), which may be substituted by hydroxyl groups and/or sulpho groups and/or carboxyl groups, and d) water, the molar ratio of the hydroxy-functional compounds used for the preparation of the prepolymer a) to the polyisocyanate being from 1: 1.1 to 1: 2.5, preferably from 1.1:1 to 1: 1.7.

    Two-component polyurethane coating composition with anti-corrosive properties
    14.
    发明授权
    Two-component polyurethane coating composition with anti-corrosive properties 有权
    双组分聚氨酯涂料组合物具有防腐蚀性能

    公开(公告)号:US06169141A

    公开(公告)日:2001-01-02

    申请号:US09311681

    申请日:1999-05-13

    Abstract: The present invention relates to a coating composition containing: A) 25 to 50 wt. % of a polyisocyanate component, B) 5 to 20% wt. % of one or more polyaspartic acid esters C) 10 to 30 wt. % of one or more polyaldimines having a number average molecular weight of 112 to 600 D) 0.1 to 5.0 wt. % of an acetal corresponding to formula IV: E) 0.1 to 5.0 wt. % of castor oil. F) 0.1 to 10.0 wt. % of an organic solvent, G) 15 to 35 wt. % of a pigment and H) 0 to 10 wt. % of a coating additive other than D, F or G, wherein the sum of the percentages of components A to H is 100. The present invention also relates to the use of this coating composition as an anti-corrosive top coat.

    Abstract translation: 本发明涉及一种涂料组合物,其含有:A)25〜50wt。 %的多异氰酸酯组分,B)5〜20重量% %的一种或多种聚天冬氨酸酯C)10至30wt。 %的一种或多种数均分子量为112〜600D的聚醛亚胺)0.1〜5.0wt。 对应于式IV的缩醛的%:E)0.1〜5.0wt。 %的蓖麻油。F)0.1〜10.0重量% %的有机溶剂,G)15〜35重量% %的颜料和H)0至10wt。 除D,F或G以外的涂料添加剂的%,其中组分A至H的百分比之和为100.本发明还涉及该涂料组合物作为防腐面漆的用途。

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