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    • 4. 发明授权
    • Aqueous dispersion of alkyde resin which is treated with an oxidizing agent and which has improved drying properties
    • 用氧化剂处理且具有改善的干燥性能的醇酸树脂的水分散体
    • US07718731B2
    • 2010-05-18
    • US10543642
    • 2004-01-27
    • Frank CogordanIvan Rodriguez
    • Frank CogordanIvan Rodriguez
    • B29C41/00
    • C08L67/08C08G63/914C08L25/14C08L33/04C09D167/08C08L2666/04
    • The present invention relates to an aqueous dispersion of alkyd resin based on fatty acids possessing conjugated unsaturation which is treated with an oxidizing agent and which has a specific performance, in particular on drying, to a specific production process and to its use as binder in aqueous compositions for decorative or industrial coatings with a reduced level of drying agent or without drying agent.The aqueous dispersion comprises at least one alkyd resin, obtained from at least one unsaturated fatty acid having a level by weight of at least 5% of the said resin, which resin is treated, before and/or during and/or after the forming of the aqueous dispersion, with at least one oxidizing agent selected from: hydroperoxides, including H2O2, peroxides or singlet oxygen, and with the oxidizing treatment temperature being: i) from ambient temperature to less than 100° C., when it takes place after the forming of the dispersion, and ii) from 50 to 150° C., when it takes place before the forming of the dispersion, and iii) from 50 to less than 100° C., when it takes place during the dispersion stage.
    • 本发明涉及一种基于具有共轭不饱和度的脂肪酸的醇酸树脂的水性分散体,该分散体用氧化剂处理并具有特定的性能,特别是干燥时的特定生产方法,并且其作为粘合剂在水性 具有降低水平的干燥剂或不含干燥剂的装饰或工业涂料的组合物。 所述水性分散体包含至少一种醇酸树脂,其由至少一种不饱和脂肪酸获得,所述不饱和脂肪酸的重量百分数为所述树脂的至少5%,所述树脂在其形成之前和/或之间和/或之后被处理 所述水性分散体与至少一种选自以下的氧化剂:氢过氧化物,包括H 2 O 2,过氧化物或单线态氧,氧化处理温度为:i)从环境温度至小于100℃,当其发生在 形成分散体,以及ii)在形成分散体之前,在50至150℃,以及iii)50至小于100℃时,其在分散阶段期间发生。