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:
Oct. 08, 1996
Filed:
Nov. 09, 1994
Applicant:
Inventors:
John C Hubbs, Kingsport, TN (US);
Marti N Harrison, Kingsport, TN (US);
Assignee:
Eastman Chemical Company, Kingsport, TN (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528361 ; 528354 ; 521 48 ;
Abstract
Disclosed is a novel process for the production of poly(3-hydroxyalkanoates) through the condensation polymerization of esters of 3-hydroxyalkanoic acids at a temperature of about 90.degree. to 200.degree. C. in the presence of a titanium catalyst. Also is disclosed a novel composition that is a poly(3-hydroxyalkanoate) containing predominantly carboxylic ester end groups.