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:
Feb. 11, 1986
Filed:
Apr. 19, 1984
Applicant:
Inventors:
Robert M Piccirilli, Gibsonia, PA (US);
David T McKeough, Gibsonia, PA (US);
Wen-Hsuan Chang, Gibsonia, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ; C09D / ;
U.S. Cl.
CPC ...
524589 ; 524590 ; 524539 ; 525440 ; 525127 ; 428413 ; 4284231 ; 428457 ; 428482 ; 4284253 ; 428460 ; 428409 ; 428427 ; 428410 ; 4284111 ;
Abstract
Polymeric microparticles and dispersions of polymeric microparticles in a liquid hydrocarbon are disclosed. The dispersions are prepared by reacting in dispersed form a preformed NCO-prepolymer containing a segment solvated by the liquid hydrocarbon and a segment insoluble in the liquid hydrocarbon with an active hydrogen-containing compound. Reaction proceeds to form polymeric microparticles which are dispersed in the liquid hydrocarbon. Also disclosed are the use of the polymeric microparticles in coating compositions and articles coated with the coating compositions.