WATERBORNE POLYMERS WITH PENDANT CROSSLINKABLE GROUPS
    1.
    发明申请
    WATERBORNE POLYMERS WITH PENDANT CROSSLINKABLE GROUPS 审中-公开
    具有悬挂可交联基团的水性聚合物

    公开(公告)号:WO9632424A3

    公开(公告)日:1996-11-14

    申请号:PCT/US9605096

    申请日:1996-04-12

    CPC classification number: C08F8/00 C08F20/00

    Abstract: Provided are allyl-functional polymers having pendant enamine moieties and preferably also possessing pendant methacrylate groups. The presence of such groups in the polymer allows for a free-radical crosslinking reaction to take place during film formation and provides coatings having superior solvent resistance. Amino-containing waterborne particles can be prepared by reacting propylene imine with carboxylic acid-containing latexes. The amino-functionalized latexes are subsequently reacted at room temperature with for example acetoacetoxyethyl methacrylate. During ambient and thermal cure studies, clear films exhibited significant increases in solvent resistance, gel fraction, and crosslink density.

    Abstract translation: 提供了具有侧链烯胺部分并且优选还具有侧基甲基丙烯酸酯基团的烯丙基官能聚合物。 在聚合物中存在这种基团允许在成膜过程中发生自由基交联反应,并提供具有优异的耐溶剂性的涂层。 含氨基的水性颗粒可以通过使丙烯亚胺与含羧酸的胶乳反应来制备。 随后使氨基官能化胶乳在室温下与例如甲基丙烯酸乙酰乙酰氧基乙酯反应。 在环境和热固化研究过程中,透明薄膜的耐溶剂性,凝胶分数和交联密度显着增加。

    7.
    发明专利
    未知

    公开(公告)号:AT263212T

    公开(公告)日:2004-04-15

    申请号:AT97928657

    申请日:1997-05-28

    Abstract: This invention provides the composition, preparation, and end-use of waterborne crosslinking technology based compositions prepared from water-based latexes. The invention provides a water-based latex comprising dispersed, waterborne amino-functional polymer particles; dispsered, waterborne acetoacetoxy-functional polymer particles; and water. In a preferred embodiment, a latex of the invention comprises dipsered, waterborne polymeric (polyamino)enamine (PPAE) particles; dispersed, waterborne acetoacetoxy-functional polymer particles; and water. The PPAE is the reaction product of a surfactant-stabilized acetoacetoxy-functional polymer (SAAP) and a poly(alkylenimine). The water-based latexes of the invetion provide stable emulsions containing a blend of waterborne polymer particles which undergo crosslinking upon film formation. The latex films or coatings may be cured at ambient temperatures or may be thermally cured. The latex is useful in variety of coating compositons such as, for example, paints, inks, sealants, and adhesives.

    STABLE AMINO-CONTAINING POLYMER BLENDS

    公开(公告)号:CA2255828C

    公开(公告)日:2003-06-17

    申请号:CA2255828

    申请日:1997-05-28

    Abstract: This invention provides the composition, preparation, and end-use of waterborne cross-linking technology-based compositions prepared from water- based latexes. The invention provides a water-based latex comprising dispersed, waterborne amino-functional polymer particles; dispersed, waterborne acetoacetoxy-functional polymer particles; and water. In a preferred embodiment, a latex of the invention comprises dispersed, waterbor ne polymeric (polyamino)enamine (PPAE) particles; dispersed, waterborne acetoacetoxy-functional polymer particles; and water. The PPAE is the reacti on product of a surfactant-stabilized acetoacetoxy-functional polymer (SAAP) an d a poly(alkylenimine). The water-based latexes of the invention provide stabl e emulsions containing a blend of waterborne polymer particles which undergo cross-linking upon film formation. The latex films or coatings may be cured at ambient temperatures or may be thermally cured. The latex is useful in a variety of coating compositions such as, for example, paints, inks, sealants , and adhesives.

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