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:
Apr. 14, 1992
Filed:
Jan. 12, 1990
Gary P Craun, Berea, OH (US);
David L Trumbo, Parma Hts., OH (US);
Frank A Wickert, Olmsted Township, Cuyahoga County, OH (US);
The Glidden Company, Cleveland, OH (US);
Abstract
Thermosetting coating compositions are based on a binder comprising carboxyl functional polyurethane, acrylic copolymer, and if desired a carbodiimide crosslinker. The binder is produced by synthesizing an isocyanate terminated, carboxyl functional urethane prepolymer in the absence of water and organic solvent but in the presence of ethylenic monomers. The organic phase urethane prepolymer dispersed in ethylenic monomers is inverted into water whereupon the urethane prepolymer is extended by reaction with a primary or secondary polyamine such as diamine to produce a high molecular weight polyurethane-urea. Thereafter, the ethylenic monomers are copolymerized to form an aqueous dispersed polyurethane-urea and acrylic copolymer mixture. The resulting polymeric binder is useful in protective surface coatings applied to plastic substrates. A carbodiimide can be added to provide thermosetting crosslinking with the carboxyl functional polyurethane.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile