The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 1981
Filed:
Feb. 20, 1980
Sheldon I Schlesinger, East Windsor, NJ (US);
American Can Company, Greenwich, CT (US);
Abstract
An epoxide coating composition which is relatively stable to ambient white light and activated upon exposure to ultraviolet light to produce a hard glossy coating includes a cationically polymerizable material consisting at least principally of an epoxide prepolymer. Also included are a titanium dioxide pigment and a photoinitiator component including a first photoinitiator compound selected from the class consisting of hexafluorophosphate, fluoroborate, fluoroantimonate or fluoroarsenate salts of the following diazonium compounds: 2,5-diethoxy-4-p-tolylmercaptobenzene diazonium, 4-chloro-2,5-dimethoxybenzene diazonium, 2,5-dimethoxybenzene diazonium, 2,5-dimethoxy-4-p-tolylbenzene diazonium and 2,5-dibutoxy-4-benzamidobenzene diazonium, and mixtures thereof. The preferred compositions additionally contain a second photoinitiator compound which is relatively stable to radiation having a wavelength of at least 355 nanometers and decomposable by radiation in the range of 200-355 nanometers. Coatings of the foregoing compositions containing certain epoxidic esters and epoxidic ethers are curable at ambient temperature to a hard glossy surface within one minute.