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:
May. 29, 2001
Filed:
Feb. 23, 1999
Applicant:
Inventors:
Shi Yang, Cary, NC (US);
Glenn Petschke, Raleigh, NC (US);
Assignee:
Reichhold, Inc., Durham, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 3/00 ; C08K 3/20 ; C08L 7/500 ;
U.S. Cl.
CPC ...
C08J 3/00 ; C08K 3/20 ; C08L 7/500 ;
Abstract
The polyurethane-acrylic hybrid interpenetrating polymer network is formed by blending a polyurethane prepolymer having acid or amine salt forming groups, air curable ethylenic unsaturation and terminal isocyanate groups or both terminal isocyanate groups and terminal vinyl groups, with one or more vinyl monomers, inert to isocyanate functionality, dispersing the prepolymer/vinyl monomer blend into water, chain extending the terminal isocyanate groups of the prepolymer with one or more active hydrogen containing compound, and reacting the vinyl monomers by free radical polymerization.