Patent · US Expired

Powdered epoxy composition

US6933332B2 · kind B2 · utility

0Cited by

4References

11Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Curtis R. Guilbert · Windom, US
Steven H. Huang · Austin, US

Key dates

Filing date	Mar 20, 2003
Grant date	Aug 23, 2005
Priority date	—
Expiry date	Mar 20, 2023

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K5/34924
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.