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. 03, 1984
Filed:
Jun. 03, 1982
Applicant:
Inventors:
Kurt Weinberg, Upper Saddle River, NJ (US);
Gordon C Johnson, Armonk, NY (US);
Assignee:
Union Carbide Corporation, Danbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
502155 ; 528279 ; 528283 ; 502158 ; 502169 ; 502170 ;
Abstract
The process for the stabilization of polycondensation catalysts and the stabilization composition used in such process for producing polyesters and copolyesters by the polycondensation of dicarboxylic acid and an aliphatic glycol using certain metal-containing polycondensation catalysts in conjunction with a stabilization composition formed as the reaction product of phosphoric acid, meta-phosphoric acid, superphosphoric acid or mixtures thereof and an aliphatic epoxide having between 2 and about 10 carbon atoms.