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:
Jan. 20, 1976
Filed:
Feb. 08, 1973
Applicant:
Inventors:
Carl C Anderson, Hartland, WI (US);
Rostyslaw Dowbenko, Gibsonia, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08G / ; C08L / ;
U.S. Cl.
CPC ...
260873 ; 260 / ; 260 79 ; 260 797 ; 260827 ; 260874 ; 260901 ;
Abstract
Block copolymers are prepared by reacting a polyester resin or polyol with a hydroxyl or carboxyl functional mercaptan and subsequently reacting the blocked polyester or polyol in the presence of oxygen, with selected vinyl monomers such as diacetone acrylamide, acrylic acid, 2-hydroxyethyl acrylate and the like. Such block copolymers provide for coating compositions having physical properties which render them useful as protective and/or decorative films.