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US 6,692,802 B1Granted
Resins for lining surfaces
AssigneeReichhold, Inc.
InventorHildeberto Nava
Life of this patent
Estimating the term…
Abstract
A method of lining a surface of a substrate comprises providing a reactive mixture which comprises (1) a resin containing active hydrogens; (2) a polycarbodiimide; and (3) an organic diluent; reacting the resin containing active hydrogens and the polycarbodiimide to chemically bind the resin and the polycarbodiimide; applying the chemically bound resin and polycarbodiimide to the surface of the substrate; and curing the chemically bound resin and polycarbodiimide in the presence of an initiator to form a cured resin material which lines the surface of the substrate.
Claims16
A lined substrate comprising:
- a layer of cured resin material comprising a mixture of a resin material comprising active hydrogens chemically bonded to a polycarbodiumide, wherein said resin comprising active hydrogens chemically bonded to a polycarbodiimide has a viscosity before curing ranging from about 30,000 centipoises to about 50 million centipoises, and a reactive organic diluent incorporated in the resin comprising active hydrogens chemically bound to the polycarbodiimide, wherein said cured resin material comprising active hydrogens has a flexural strength ranging from about 3,000 psi to about 80,000 psi;
- and
- a surface of said substrate which contains said layer of cured resin material thereon.
A lined substrate comprising:
- a layer of cured resin material provided by reacting a mixture of a resin containing active hydrogens, a polycatbodiimide and a reactive organic diluent to chemically bind the resin and polycarbodlimide, wherein the resin containing active hydrogens has a viscosity ranging from about 30,000 centipoises to about 50 million centipoises, and wherein said cured resin material has a flexural strength ranging from about 3,000 psi to about 80,000 psi;
- and
- a surface of said substrate which contains said laver of cured resin material thereon.
Dependencies are inferred from the claim text.