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:
Aug. 12, 1986
Filed:
Oct. 01, 1984
Applicant:
Inventors:
Ronald R Ambrose, Allison Park, PA (US);
Wen-Hsuan Chang, Gibsonia, PA (US);
David T McKeough, Gibsonia, PA (US);
John R Peffer, Pittsburgh, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
528 73 ; 528 80 ; 528 44 ; 528272 ; 528354 ;
Abstract
There are disclosed herein lactone-polyester polyols which are derived from lactones, resinous polyols thereof, and coating compositions formulated therewith. The polyester polyols are typically prepared by reacting a large excess of low molecular weight polyols with lactones or functional equivalents thereof. The polyols are employed in amounts sufficient to produce reaction products containing a significant amount of unreacted polyols which can be subsequently removed by means such as vacuum distillation.