Epoxy resins of controlled conversion and a method for their...

Details Epoxy resins of controlled conversion and a method for their... Epoxy resins of controlled conversion and a method for their...

C - Chemistry, Metallurgy

08

G

402/250, 402/43

C08G 59/02 (2006.01) C08G 59/04 (2006.01) C08G 59/06 (2006.01) C09D 163/00 (2006.01)

Patent

CA 1258738

ABSTRACT Epoxy resins containing both epoxy and terminal hydroxyl groups are prepared by advancing a polyepoxide with a polyol and terminating the reaction at a point such that the epoxy resin reaction product contains at least 0.25 percent of both epoxy and terminal hydroxyl groups. The resulting epoxy resins of such controlled conversion exhibit lower melt and solution viscosities than those exhibited by conventional epoxy resins having the same epoxy equivalent weight. The controlled conversion resins are usefully employed in powder coating compositions as well as can coatings and other epoxy formulations wherein the resin is applied from an organic liquid solution or aqueous dispersion.

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