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Title: Epoxy resin sand consolidation rejuvenation

Patent ·
OSTI ID:6243517

A process is described for increasing the strength and stability of an epoxy resin-consolidated permeable mass of grains that has been weakened by a resin- degradative aqueous liquid. The mud acids, which comprise aqueous solutions of acidic materials that contain (or form) hydrofluoric acid, are particularly strong resin-degradative aqueous liquids. A consolidated permeable mass of grains that contains an epoxy resin grain-bonding material that has been weakened by exposure to a resin-degradative aqueous liquid is strengthened and stabilized by contacting the permeable mass with a polyfunctional organic silane capable of functioning as a resin-to-grain bonding agent. (10 claims)

Assignee:
Shell Oil Co.
Patent Number(s):
US 3646999
OSTI ID:
6243517
Resource Relation:
Patent File Date: Filed date 20 May 1970
Country of Publication:
United States
Language:
English