发明授权
US09096790B2 Low temperature coated particles comprising a curable liquid and a reactive powder for use as proppants or in gravel packs, methods for making and using the same 有权
包含可固化液体和反应性粉末的低温涂覆颗粒用作支撑剂或砾石包装,其制备和使用方法

Low temperature coated particles comprising a curable liquid and a reactive powder for use as proppants or in gravel packs, methods for making and using the same
摘要:
Disclosed herein are free flowing coated particles and low temperature methods of making same. Each particle has a curable coating disposed upon a substrate. The substrate is a particulate substrate including an inorganic material, a particulate substrate including an organic material, a composite substantially homogeneous formed particle including a first portion of an at least partly cured binder and filler particles, or a hybrid particle having an inorganic particle as a core and a composite coating including at least partially cured resin and filler. The curable coating includes a continuous phase including a curable liquid resin and reactive powder particles embedded or adhered to the continuous phase. The reactive powder particles typically include one or more of a resole phenolic-formaldehyde resin, a novolak phenolic-formaldehyde resin, a polyester resin, an acrylic polymer resin, a urethane resin or an epoxy resin. A method including applying a coating including the continuous phase including the curable resin and reactive or non-reactive powder particles embedded or adhered to the continuous phase.
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