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US 4,380,605 AGranted
Room temperature crosslinking unsaturated polyester resins
AssigneePennwalt Corporation
InventorsRonald B. Gallagher, Michael F. Novits
Life of this patent
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Abstract
The crosslinking of unsaturated polyester resins at room temperature in the presence of a peroxyester initiator is accelerated by a mercapto compound and a metal salt wherein the metal is selected from the group consisting of copper, and iron, or a mixture of the metal salts.
Claims10
A process of crosslinking an unsaturated polyester resin comprising admixing to said unsaturated resin
- (a) an initiating amount of at least one peroxyester,
- (b) mercaptobenzothiazole, and
- (c) an inorganic metal salt wherein the metal is selected from the group consisting of iron, copper and a mixture of the metal salt, and crosslinking the admixture at room temperature.
Dependencies are inferred from the claim text.