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:
Oct. 17, 2000
Filed:
Jun. 24, 1994
Curtis P Smith, Cheshire, CT (US);
John W Reisch, Madison, CT (US);
Richard J Feegel, West Haven, CT (US);
ARCO Chemical Technology, L.P., Greenville, DE (US);
Abstract
The present invention relates to a composition being an aqueous dispersion of a polyurethane in water, said composition comprising water and the reaction product of (a) a water-dispersible isocyanate-terminated polyurethane prepolymer having an NCO content of between 2.1 and 10% by weight, (b) an organic polyisocyanate adduct mixture comprising a polyisocyanate dimer and a polyisocyanate trimer and having an average isocyanate functionality of between 2.1 and 4.0, and (c) an active hydrogen-containing chain extender. Also disclosed is a process for preparing this composition, and a method for coating a substrate with the composition.