Patent ID: 7595280
Filing Date: 2009-09-29
Classification: C09K

Abstract:
1. A plurality of proppant particulates coated with a delayed tackifying composition that comprises an aqueous tackifying agent and a delayed acid-releasing activator capable of activating the aqueous tackifying agent, the delayed-acid releasing activator comprising at least one material selected from the group consisting of an orthoacetate; trimethyl orthoacetate; triethyl orthoacetate; tripropyl orthoacetate; triisopropyl orthoacetate; tributyl orthoacetate; a poly(orthoacetate); an orthoformate; trimethyl orthoformate; triethyl orthoformate; tripropyl orthoformate; triisopropyl orthoformate; tributyl orthoformate; a poly(orthoformate); a orthopropionate; trimethyl orthopropionate; triethyl orthopropionate; tripropyl orthopropionate; triisopropyl orthopropionate; tributyl orthopropionate; a poly(orthopropionate); and an orthoester of a polyfunctional alcohol.