Powder coating of thermosetting resin(s), polyphenylene ether(s) and curing agent(s)
AssigneeGeneral Electric Company
InventorsGary William Yeager, Michael Teruki Takemori
Life of this patent
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Abstract
A powder coating composition comprises at least one thermosetting resin such as epoxy resins, carboxy- or hydroxy-functional polyesters; hydroxy-, carboxyl- or glycidyl-functional acrylic resins; and/or hydroxy- or carboxyl-functional fluoropolymers, fluorochloropolymers or fluoroacrylic polymers blended with a at least one poly(phenylene ether) and at least one curing agent for the thermosetting resin.
Claims24
A powder coating composition comprising at least one thermosetting resin, at least one poly(phenylene ether) and at least one curing agent.
A powder coating composition comprising at least one epoxy resin selected from the group consisting of bisphenol-A-based diglycidylethers, epoxidized phenol-formaldehyde novolacs, epoxidized cresol-formaldehyde novolacs, epoxidized alkylphenol-formaldehyde novolacs, epoxidized phenol-dicyclopentadiene novolacs and epoxidized bromophenol-formaldehyde novolacs, and mixtures thereof, at least one poly(2,6-dimethyl-1,4-phenylene ether) having an intrinsic viscosity of less than 0.35 dl./g. measured at 25° C. in chloroform and at least one curing agent.
A powder coating composition comprising at least one epoxy resin, at least one poly(2,6-dimethyl-1,4-phenylene ether) having an intrinsic viscosity of less than 0.35 dl./g. measured at 25° C. in chloroform and at least one curing agent, wherein the cured composition exhibits morphology comprising cured thermoset particles having an average diameter of 100 to 1000 microns and continuous poly(phenylene ether) domains containing cured thermoset particles having an average diameter of less than 20 microns.
Dependencies are inferred from the claim text.