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    • 15. 发明授权
    • Curable film-forming compositions containing colloidal particle sols having improved appearance and mar and scratch resistance
    • 含有具有改善的外观和耐擦伤性的胶体颗粒溶胶的可成膜成膜组合物
    • US07754787B2
    • 2010-07-13
    • US11847427
    • 2007-08-30
    • Steven V. Barancyk
    • Steven V. Barancyk
    • C08K9/00C09J4/00C08G18/62
    • C08G65/336C08L33/00C08L71/02C08L2666/04
    • Curable film-forming compositions comprising a film-forming resin and an organic sol of particles are provided. The sol of particles may be prepared by providing a suspension of particles in an aqueous medium; adding a first organic liquid compatible with the aqueous medium to form an admixture; reacting the particles with a first and a second modifying compound; adding a second organic liquid compatible with the liquid portion of the admixture wherein the second organic liquid is different from the first organic liquid; and maintaining the admixture at a temperature and pressure and for a time sufficient to substantially remove the water and the first organic liquid. The film-forming resin comprises an active hydrogen-functional polymer having low functionality; i.e., a functional group equivalent weight greater than 380 g/equivalent, and a crosslinking agent, yet surprisingly offers outstanding mar and scratch resistance.
    • 提供了包含成膜树脂和颗粒的有机溶胶的可成膜成膜组合物。 可以通过在水介质中提供颗粒的悬浮液来制备颗粒溶胶; 加入与水介质相容的第一有机液体以形成混合物; 使颗粒与第一和第二改性化合物反应; 添加与所述混合物的液体部分相容的第二有机液体,其中所述第二有机液体不同于所述第一有机液体; 并将混合物在温度和压力下保持足够的时间以基本上除去水和第一有机液体。 成膜树脂包含具有低官能度的活性氢官能聚合物; 即大于380g /当量的官能团当量,以及交联剂,令人惊奇的是具有优异的耐擦伤性和耐擦伤性。
    • 18. 发明授权
    • Process for the preparation of carbamate functional polymers
    • 制备氨基甲酸酯官能聚合物的方法
    • US06228953B1
    • 2001-05-08
    • US09378319
    • 1999-08-20
    • Steven V. BarancykDebra L. Singer
    • Steven V. BarancykDebra L. Singer
    • C08R830
    • C08F8/14C08F8/30
    • A method of preparing a carbamate functional polymer or oligomer is provided. The method comprises: (a) preparing a reaction mixture comprising a lower alkyl carbamate, a hydroxyl functional polymer or oligomer, and an alcohol different from and having a higher boiling point than an alcohol from which the lower alkyl carbamate is derived; and (b) heating the reaction mixture to form a carbamate functional polymer or oligomer. Also provided is a method of preparing a carbamate functional acrylic polymer by preparing a similar reaction mixture using acrylic monomers containing hydroxyl groups or groups that can be converted to hydroxyl groups and heating the reaction mixture in the presence of a free radical initiator and an esterification catalyst.
    • 提供了制备氨基甲酸酯官能聚合物或低聚物的方法。 该方法包括:(a)制备包含氨基甲酸低级烷基酯,羟基官能聚合物或低聚物的反应混合物和不同于且具有高于其衍生的低级烷基氨基甲酸酯的醇的沸点的醇; 和(b)加热反应混合物以形成氨基甲酸酯官能聚合物或低聚物。 还提供了一种制备氨基甲酸酯官能的丙烯酸类聚合物的方法,其通过使用含有羟基的丙烯酸单体或可以转化为羟基的基团并在自由基引发剂和酯化催化剂存在下加热反应混合物来制备相似的反应混合物 。