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. 17, 1979
Filed:
Feb. 13, 1978
Applicant:
Inventor:
Mellis M Kelley, Akron, OH (US);
Assignee:
The Goodyear Tire & Rubber Company, Akron, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528272 ; 528480 ;
Abstract
The invention relates to a process for preparing catalyst-free high molecular weight polyester resin by preparing a low polymer having an intrinsic viscosity of from about 0.1 to 0.4 said low polymer being essentially free of catalyst and polymerizing the low polymer under solid state polymerization conditions to form high molecular weight polyester.