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    • 40. 发明授权
    • Coated abrasive tools from non-blocked urethane prepolymer
    • 非封闭氨基甲酸酯预聚物的涂层研磨工具
    • US07811342B1
    • 2010-10-12
    • US11371350
    • 2006-03-08
    • Shyiguei Hsu
    • Shyiguei Hsu
    • B24B1/00B24D11/00C09K3/14
    • B24D11/001
    • A polyurethane adhesive composition, formed by combining a non-blocked urethane prepolymer and a polymeric polyol, is used for preparing a coated abrasive tool. The polyurethane adhesive composition is applied over a substrate to thereby form a polyurethane-adhesive-composition-coated substrate. Curing the polyurethane-adhesive-composition-coated substrate forms a polyurethane-adhesive-coated substrate. An abrasive material is applied over the substrate at a time selected from the group consisting of prior to, after, and simultaneously with, the application of the polyurethane adhesive composition to the substrate, to thereby form the coated abrasive tool. The coated abrasive tool preferably includes a polyurethane adhesive resin coating over the substrate, the resin coating being formed from a polymerization reaction of a non-blocked urethane prepolymer and a phenoxy resin.
    • 通过组合未封端的氨基甲酸酯预聚物和聚合多元醇形成的聚氨酯粘合剂组合物用于制备涂覆的研磨工具。 将聚氨酯粘合剂组合物施加在基材上,从而形成涂覆有聚氨酯 - 粘合剂组合物的基材。 固化聚氨酯 - 粘合剂组合物涂覆的基材形成聚氨酯 - 粘合剂涂覆的基材。 将磨料材料从选自由聚氨酯粘合剂组合物施加到基材之前,之后并同时施加的时间施加在基材上,从而形成涂覆的研磨工具。 涂布的研磨工具优选在基材上包含聚氨酯粘合树脂涂层,树脂涂层由未封端的氨基甲酸酯预聚物和苯氧基树脂的聚合反应形成。