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:
Aug. 04, 1987
Filed:
Dec. 06, 1985
Kornelia Breuer, Aldenhoven, DE;
Udo Gelderie, Stolberg, DE;
Gerhard Holzer, Aachen, DE;
Helmer Raedisch, Aachen, DE;
Saint-Gobain Vitrage, Courbevoie, FR;
Abstract
A high optical quality polyurethane coating layer, with self-repairing and fog-resistant properties, utilized for panes made of glass and/or plastic materials. The layer is formed from a reactive mixture composed 10 to 75% by weight of a biuret or an isocyanurate of 1,6 hexamethylenediisocyanate, having a content of about 15 to 25% weight of NCO radicals and having an average molecular weight between about 450 and 850 and comprised about 90 to 25% by weight of a polyalcohol component essentially comprised of a plurifunctional polyalcohol having about 0.4 to 17% of its percentage weight comprised of OH radicals, and having a molecular weight between about 200 and 15,000, and having ethoxy-propoxy chains, comprised 50 to 90% by weight of ethoxy radicals and 50 to 10% by weight of propoxy radicals.