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    Aqueous non-gelling, anionic polyurethane dispersions and process for their manufacture
    2.
    发明授权
    Aqueous non-gelling, anionic polyurethane dispersions and process for their manufacture 失效
    水性非胶凝，阴离子聚氨酯分散体及其制造方法

    公开(公告)号：US5610232A

    公开(公告)日：1997-03-11

    申请号：US480780

    申请日：1995-06-07

    申请人： Youlu Duan ,  Sonja Stammler ,  Scott Rhein ,  Lowell Lindquist

    发明人： Youlu Duan ,  Sonja Stammler ,  Scott Rhein ,  Lowell Lindquist

    IPC分类号： C08G18/08 ,  C08G18/12 ,  C08G18/46 ,  C08G18/66 ,  C08G18/72 ,  C08G18/83 ,  C09J175/06 ,  C08L75/06 ,  B32B27/40

    CPC分类号： C08G18/0819 ,  C08G18/0823 ,  C08G18/0828 ,  C08G18/0866 ,  C08G18/10 ,  C08G18/12 ,  C08G18/4676 ,  C08G18/6659 ,  C08G18/722 ,  C08G18/724 ,  C08G18/833 ,  C08G18/838 ,  C09J175/06 ,  C08G2170/80 ,  C08G2250/00 ,  Y10S528/905 ,  Y10T428/31551 ,  Y10T428/31558 ,  Y10T428/31565 ,  Y10T428/31573 ,  Y10T428/3158 ,  Y10T428/31587 ,  Y10T428/31591 ,  Y10T428/31605

    摘要： Aqueous dispersion adhesives of anionic polyurethanes which have high heat resistance and low activation temperature, even when employed without addition of a crosslinker. The polyurethane is the reaction product of an isocyanate terminated polyurethane prepolymer, and water. The polyurethane prepolymer is the reaction product of a polyol component and a diisocyanate component, the polyol component including:a sulfonated polyester polyol,a hydroxy carboxylic acid of the formula:(HO).sub.x R(COOH).sub.ywherein (R) represents a straight or branched, hydrocarbon radical containing 1 to 12 carbon atoms, and x and y represent values from 1 to 3, and optionally,a low molecular weight aliphatic diol having a molecular weight of from 60 to 400a non-sulfonated polyol,and the diisocyanate component being selected from the group consisting of aromatic diisocyanates, isopherone diisocyanate, hexamethylene diisocyanate and mixtures thereof. The dispersions are prepared by mixing prepolymer and water at a temperature of at least 60.degree. C. for sufficient time to fully react the isocyanate groups in a prepolymer self-extension reaction with water, typically at least 0.5 hour. The dispersions of the invention provide higher strength adhesive bonds than identical prepolymer dispersions extended with diamine chain extender, instead of water, after dispersion.

    摘要翻译： 具有高耐热性和低活化温度的阴离子聚氨酯的水性分散粘合剂，即使在不添加交联剂的情况下使用。 聚氨酯是异氰酸酯封端的聚氨酯预聚物和水的反应产物。 聚氨酯预聚物是多元醇组分和二异氰酸酯组分的反应产物，多元醇组分包括：磺化聚酯多元醇，下式的羟基羧酸：（HO）xR（COOH）y，其中（R）表示直链或 含有1〜12个碳原子的支链烃基，x和y表示1-3的数值，任选地，分子量为60〜400的非磺化多元醇的低分子量脂肪族二醇和二异氰酸酯成分 选自芳族二异氰酸酯，异角骨二异氰酸酯，六亚甲基二异氰酸酯及其混合物。 通过将预聚物和水在至少60℃的温度下混合足够的时间以使预聚物自身延伸反应中的异氰酸酯基团与水（通常至少0.5小时）完全反应来制备分散体。 在分散后，本发明的分散体提供比用二胺扩链剂代替水延伸的相同的预聚物分散体更高的强度粘合剂粘合。

    Reduced solvent process for preparation of aqueous polyurethane dispersions with improved heat-and water-resistance
    4.
    发明授权
    Reduced solvent process for preparation of aqueous polyurethane dispersions with improved heat-and water-resistance 失效
    用于制备具有改善的耐热和耐水性的水性聚氨酯分散体的减少溶剂方法

    公开(公告)号：US5637639A

    公开(公告)日：1997-06-10

    申请号：US528936

    申请日：1995-09-15

    申请人： Youlu Duan ,  Sonja Stammler

    发明人： Youlu Duan ,  Sonja Stammler

    IPC分类号： C08L75/06 ,  B01L3/00 ,  B32B27/00 ,  B32B27/40 ,  C08G18/00 ,  C08G18/08 ,  C08G18/10 ,  C08G18/12 ,  C08G18/42 ,  C08G18/46 ,  C08G18/65 ,  C08G18/66 ,  C08G18/72 ,  C08G18/83 ,  C08L75/04 ,  C09J175/04 ,  C09J175/06 ,  C12Q1/00 ,  G01N33/48 ,  G01N33/53 ,  G01N33/543 ,  G01N37/00

    CPC分类号： C08G18/0819 ,  B01L3/5027 ,  C08G18/0823 ,  C08G18/0828 ,  C08G18/0866 ,  C08G18/10 ,  C08G18/12 ,  C08G18/4676 ,  C08G18/6659 ,  C08G18/722 ,  C08G18/724 ,  C08G18/833 ,  C08G18/838 ,  C09J175/06 ,  G01N33/5304 ,  G01N33/54366 ,  G01N33/54393 ,  B01L2200/10 ,  B01L2300/0636 ,  B01L2300/0825 ,  B01L2400/0406 ,  B01L2400/086 ,  C08G2170/80 ,  C08G2250/00 ,  Y10S528/905

    摘要： A process for preparing poly(urethane/urea) prepolymers and aqueous poly(urethane/urea) dispersions (PUDs) therefrom, the poly(urethane/urea) polymers having high heat resistance and good water resistance. The method employs a water soluble volatile organic solvent, such as acetone, at a level of 0.1-5%, based on final dispersion weight, a level which does not require removal for purposes of flash point considerations. The method includes the steps ofreacting in the presence of a water soluble volatile organic solvent at a level corresponding to no more than 5% by weight of the final dispersion, a polyisocyanate component comprising a diisocyanate, with a polyol component to produce an isocyanate terminated polyurethane prepolymer the polyol component providing both carboxylate groups and sulfonate groups;dispersing the isocyanate terminated prepolymer in aqueous media;reacting said dispersed isocyanate terminated polyurethane prepolymer with at least one amine functional chain extender or chain terminator compound to thereby form said poly(urethane/urea) polymer;neutralizing the carboxylate and sulfonate groups of said isocyanate terminated prepolymer with an alkali hydroxide or a tertiary amine prior to, or simultaneous with, said reaction of said prepolymer and said amine functional chain extender or terminator;wherein the method is performed without a solvent distillation step.

    摘要翻译： 聚（氨基甲酸酯/尿素）预聚物和聚氨酯/尿素水分散体（PUD）的制备方法，聚（氨基甲酸酯/脲）聚合物具有高耐热性和良好的耐水性。 该方法采用水溶性挥发性有机溶剂如丙酮，其水平为0.1-5％，基于最终分散体重量，为了闪点考虑目的不需要除去的水平。 该方法包括在水溶性挥发性有机溶剂存在下反应的步骤，其水平对应于最终分散体的不超过5重量％，含有二异氰酸酯的多异氰酸酯组分与多元醇组分以产生异氰酸酯封端 聚氨酯预聚物，提供羧酸酯基团和磺酸酯基团的多元醇组分; 将异氰酸酯封端的预聚物分散在水性介质中; 使所述分散的异氰酸酯封端的聚氨酯预聚物与至少一种胺官能扩链剂或链终止剂化合物反应，从而形成所述聚（氨基甲酸酯/脲）聚合物; 在所述预聚物和所述胺官能扩链剂或终止剂的所述反应之前或同时，用碱金属氢氧化物或叔胺中和所述异氰酸酯封端的预聚物的羧酸酯和磺酸酯基团; 其中所述方法在没有溶剂蒸馏步骤的情况下进行。