Patent ID: 9045678
Filing Date: 2015-06-02
Classification: C09K

Abstract:
1. A proppant for a well treatment fluid, the proppant comprising discrete particles of a substrate coated with a resin comprising a product of a Maillard reaction between (1) a carbohydrate and an amine, (2) a carbohydrate and an ammonium compound, or (3) a carbohydrate, an amine, and an ammonium compound, wherein the substrate is coated with two layers of coating, wherein a first, innermost layer comprises a curable, thermosetting resin, wherein a second, outermost layer comprises the product of the Maillard reaction, and wherein the product of the Maillard reaction is formed by heating the substrate coated with the resin to a temperature of about 149° C. to about 316° C.