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. 06, 2004
Filed:
Nov. 27, 2000
Indulis Gruzins, Louisville, KY (US);
Donald Farrell McElheney, Louisville, KY (US);
Robert C. Hire, Dayville, CT (US);
Jerry Douglas Necessary, Elizabethtown, KY (US);
Arch Chemicals, Inc., Norwalk, CT (US);
Abstract
The present invention is directed to carboxyl-containing monomers for use in preparing a polyurethane polymers, the carboxyl-containing monomers being the reaction product of a low molecular weight polyol compound and an acid anhydride in the presence of 5-500 ppm phosphoric acid, the carboxyl-containing monomer having a viscosity in the range of 3,000 to 100,000 centipoise, and having oligomer content of less than about 30 mg KOH/g. The present invention is also directed to methods of making the above carboxyl-containing monomers, as well as prepolymers and urethane polymers containing the above carboxyl-containing monomers.