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. 21, 1998
Filed:
Apr. 28, 1997
Applicant:
Inventors:
Richard S Valpey, III, Frankfort, IL (US);
Eugene I Bzowej, Chicago, IL (US);
Assignee:
The Sherwin-Williams Company, Cleveland, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ; C08F / ; C08F / ; C08F / ; C08F / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
528 74 ; 2521822 ; 25218224 ; 25218228 ; 4273855 ; 4273935 ; 4274071 ; 4284231 ; 525123 ; 525130 ; 526280 ; 526281 ; 526282 ; 526309 ; 526320 ; 526346 ; 526347 ; 528 75 ; 528 80 ; 528 81 ; 560205 ; 560220 ; 560224 ; 568816 ; 568820 ;
Abstract
A hydroxy-functional polymer having a number average molecular weight, as determined by gel permeation chromatography, of from about 1800 to about 2700 and which consists essentially of polymerized monomers of 10-40% by weight, based on the total weight of the polymer, styrene; 20-55% by weight isobornyl methacrylate; and 20-55% by weight hydroxypropyl methacrylate; where the total of the monomers equals 100% are disclosed. The polymers are especially useful in combination with polyisocyanates as clearcoats in clearcoat/basecoat coating applications.