Coating processes – Particles – flakes – or granules coated or encapsulated – Applying superposed diverse coatings or coating a coated base
Patent
1998-08-21
1999-09-21
Dudash, Diana
Coating processes
Particles, flakes, or granules coated or encapsulated
Applying superposed diverse coatings or coating a coated base
427220, 427221, 4274071, 4274072, B05D 700
Patent
active
059551445
ABSTRACT:
An improved resin coated particle comprises a particulate substrate, an inner coating of a curable resin and an outer coating of a substantially cured resin. These improved resin coated particles are produced by first coating the substrate with a reactive resin. A second or outer coating of a resin is then coated over the inner curable resin coating and subjected to conditions of time and temperature sufficient to substantially cure said outer coating while the inner coating remains curable. The particles can be used in a method for treating subterranean formations, which comprises placing in or adjacent to the formation a quantity of the resin coated particle and allowing them to cure into a high strength permeable mass in the formation.
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Johnson, II Richard L.
Rediger Richard A.
Sinclair A. Richard
Smith Van T.
Dudash Diana
Georgia-Pacific Resins Inc.
Sanatrol, Inc.
Strain Paul D.
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