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    • 4. 发明授权
    • Leather coating binder and coated leather having good embossability and wet-flex endurance
    • 皮革涂层粘合剂和涂层革具有良好的压花性和耐湿挠性
    • US06387291B2
    • 2002-05-14
    • US09870576
    • 2001-05-31
    • Patricia Marie LeskoFrederick James Schindler
    • Patricia Marie LeskoFrederick James Schindler
    • C14C1100
    • C09D157/04C14C11/003
    • An aqueous leather coating composition and a method for coating leather with the aqueous coating composition are provided. The aqueous coating composition contains an aqueous emulsion polymer which includes from 0.4% to 10% by weight of a copolymerized acetoacetate or acetoacetamide monomer and has a glass transition temperature from −20° C. to 10° C. In an alternative embodiment the aqueous coating composition contains an aqueous emulsion polymer which includes from 0.1% to 6% by weight of a copolymerized acetoacetate or acetoacetamide monomer and from 2% to 15% by weight of copolymerized carboxylic acid monomer and has a glass transition temperature from −40° C. to 0° C., the polymer having been contacted with a transition metal oxide, hydroxide, or carbonate at a pH less than 9 in an amount greater than 0.20 equivalent of transition metal per equivalent of copolymerized carboxylic acid monomer.
    • 提供水性皮革涂料组合物和用水性涂料组合物涂覆皮革的方法。 该水性涂料组合物含有含水乳液聚合物,其包含0.4重量%至10重量%的共聚乙酰乙酸酯或乙酰乙酰胺单体,玻璃化转变温度为-20℃至10℃。在另一实施方案中,水性涂料 组合物含有水乳液聚合物,其含有0.1重量%至6重量%的共聚乙酰乙酸酯或乙酰乙酰胺单体和2重量%至15重量%的共聚羧酸单体,玻璃化转变温度为-40℃至 0℃,聚合物与过渡金属氧化物,氢氧化物或碳酸盐接触,其pH值小于9,每当量共聚羧酸单体的量大于0.20当量过渡金属。