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发明授权
CN105143395B 支撑剂 有权

支撑剂
摘要：
本发明公开了一种支撑剂，其包括基于支撑剂的总重量计以90至99.5重量％的量存在的粒子和位于粒子周围并以0.5至10重量％的量存在的聚合物涂层。所述聚合物涂层由包含异氰酸酯、丙烯酸酯或盐、和多元醇的可固化组合物形成。一种形成支撑剂的方法包括合并异氰酸酯、丙烯酸酯或盐、和多元醇以形成可固化组合物、用所述可固化组合物涂布粒子和固化所述可固化组合物以形成聚合物涂层的步骤。
摘要（英）：

A proppant includes a particle present in an amount of from 90 to 99.5 percent by weight and a polymeric coating disposed about the particle and present in an amount of from 0.5 to 10 percent by weight, based on the total weight of the proppant. The polymeric coating is formed from a curable composition comprising an isocyanate, an acrylate, and a polyol. A method of forming the proppant includes the steps of combining the isocyanate, the acrylate, and the polyol to form the curable composition, coating the particle with the curable composition, and curing the curable composition to form the polymeric coating.

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