Polyepoxide ether polyacrylate mixtures
AssigneeMobil Oil Corporation
InventorMarvin L. Kaufman
Life of this patent
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Abstract
Liquid mixtures which are curable by exposure to ultraviolet light when appropriately photosensitized are provided by etherifying a polyepoxide with an at least 25% stoichiometric excess of an hydroxy alkyl ester of an alpha, beta-monoethylenically unsaturated monocarboxylic acid, expecially hydroxy ethyl acrylate. The unreacted hydroxy alkyl ester is then consumed by reaction with at least 1 molar equivalent of a monoanhydride, such as a monoepoxide, a lactone, or a monoisocyante.
Claims16
A liquid mixture comprising polyethylenic polyepoxide polyether produced by etherifying a polyepoxide having an epoxy functionality of at least 1.2 and a molecular weight in the range of 350-4000, with an at least 25% stoichiometric excess, based on the epoxy group, of an hydroxy alkyl ester of an alpha, beta-monoethyenically unsaturated monocarboxylic acid, and then reacting the unreacted hydroxy alkyl ester with at least one molar equivalent of a monoanhydride selected from monoexpoides, lactones, monoisocyanates, and mixtures thereof, to substantially consume said unreacted hydroxy alkyl ester.
A liquid mixture containing less than 10% of volatile organic solvent and comprising polyepoxide ether polyacrylate produced by etherifying a polyepoxide having an epoxy functionality of at least 1.4 and a molecular weight in the range of 350-4000, with an at least 25% stoichiometric excess based on the epoxy group of an hydroxy alkyl acrylate to consume said epoxy functionality, and then reacting the unreacted hydroxyl alkyl acrylate with at least one molar equivalent of a monoanhydride selected from monoepoxides, lactones, monoisocyanates, and mixtures thereof to substantially consume said unreacted hydroxy alkyl acrylate.
Dependencies are inferred from the claim text.