Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Christopher M. Tanguay0
Rajesh Kumar0
Michael T. Yang0
Date of Patent
July 25, 2017
0Patent Application Number
136789910
Date Filed
November 16, 2012
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A proppant comprises a particle and a polycarbodiimide coating disposed on the particle. The polycarbodiimide coating comprises the reaction product of an isocyanate reacted in the presence of a phospholene oxide catalyst. A method of forming the proppant comprises the steps of providing the particle, providing the isocyanate, providing the phospholene oxide catalyst, reacting the isocyanate in the presence of the phospholene oxide catalyst to form the polycarbodiimide coating, and coating the particle with the polycarbodiimide coating.
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