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:
Jun. 26, 1984
Filed:
May. 04, 1984
Joseph W Holubka, Livonia, MI (US);
Ray A Dickie, Birmingham, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
Resin composition suitable for high solids, solvent-based coating composition comprises chain-extendable, crosslinkable polyol of molecular weight about 100 to 1000, having at least three hydroxyl groups, chain-extendable diblocked diisocyanate diurea oligomer of molecular weight about 200 to 1500, comprising the reaction product of a half-blocked diisocyanate with diamine, crosslinking agent reactive with the hydroxy functionality of the polyol and substantially unreactive with the de-blocked isocyanate functionality of said diblocked diisocyanate diurea oligomer, and, preferably, catalyst(s). The composition cures at elevated temperature to provide a coating on a substrate, such as steel, which coating is highly resistant to corrosion, humidity and solvents and provides corrosion protection for the substrate. The half-blocked diisocyanate is preferably the reaction product of an organic diisocyanate with monofunctional blocking agent. The polyol is preferably the reaction product of a diol of molecular weight about 60 to 500 with a diepoxide of molecular weight about 100 to 1000 such as bisphenol A epichlorohydrin epoxy resin, hydantoin epoxy resin and the like.