Powdered epoxy composition
Assignee3M Innovative Properties Company
InventorsCurtis R. Guilbert, Steven H. Huang
Life of this patent
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Abstract
A cured epoxy coating comprising from about 30% to about 40% of at least one epoxy resin selected from the group consisting of diglycidyl ethers of bisphenol A, from about 55% to about 60% of a particulate flame retardant, from about 1% to about 4% of at least one multifunctional hindered phenol; and no more than about 5% of at least one adhesion promoter. The cured coating provides insulation for electrical current carriers and has an average surface roughness from about 10 μm to about 13 μm as measured using a Pethometer M4P 150 surface profile measuring instrument.
Drawings
Claims9
A powdered epoxy composition comprising:
- from about 30% to about 40% of at least one epoxy resin selected from the group consisting of diglycidyl ethers of bisphenol A;
- from about 55% to about 60% of a particulate flame retardant;
- from about 1% to about 4% of at least one multifunctional hindered phenol;
- and
- no more than about 5% of at least one adhesion promoter.
A cured epoxy coating comprising:
- from about 30% to about 40% of at least one epoxy resin selected from the group consisting of diglycidyl ethers of bisphenol A;
- from about 55% to about 60% of a particulate flame retardant;
- from about 1% to about 4% of at least one multifunctional hindered phenol;
- and
- no more than about 5% of at least one adhesion promoter, said cured coating having an average surface roughness from about lom to about 13 μm as measured using a Pethometer M4P 150 surface profile measuring instrument.
Dependencies are inferred from the claim text.