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:
Dec. 06, 1994
Filed:
Mar. 04, 1994
Applicant:
Inventor:
Henry Stanley, Cedar Grove, NJ (US);
Assignee:
National Starch and Chemical Investment Holding Corporation, Bridgewater, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
524457 ; 524507 ;
Abstract
This is a method for the preparation of polyurethane/acrylic-or-vinyl latexes for use in waterborne adhesives or coatings in which the urethane polymer component has no urea linkages. A fully reacted emulsifiable polyurethane is prepared in an acrylic or vinyl monomer, which acts as the solvent or diluent for the polyurethane. The monomer and polyurethane are then coemulsified, free radical initiators are added, and a regular acrylic or vinyl addition polymerization is carried out.