Patent ID: 8679632
Filing Date: 2014-03-25
Classification: C08K,C08L,C09D,Y10T

Abstract:
1. A powdered epoxy coating composition comprising: from about 50 wt % to about 90 wt % of at least one epoxy resin; from about 1 wt % to about 30 wt % of at least one catechol novolak-type adhesion promoter; and from about 0.1 wt % to about 5 wt % of magnesium oxide, wherein all weight percentages are based on the total weight of the coating composition, wherein the catechol novolak-type adhesion promoter comprises one of a catechol novolak resin and a blend of a catechol novolak resin and a phenolic resin in a ratio of about 20:80 by weight, and wherein the catechol novolak resin comprises a compound of the formula (I): wherein n is an integer from 0 to 10.