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. 30, 1979
Filed:
Jul. 25, 1977
Applicant:
Inventors:
Anthony L Lemper, Amherst, NY (US);
Jerold C Rosenfeld, Tonawanda, NY (US);
Assignee:
Hooker Chemicals & Plastics Corp., Niagara Falls, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
260860 ;
Abstract
Linear aromatic polyesters are produced by the melt polymerization process by mixing a bisphenol, a diaryl ester of a dicarboxylic acid and an oligomeric polyester comprised of an aliphatic glycol and a dicarboxylic acid and reacting the mixture in the presence of a transesterification catalyst.