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:
Jun. 11, 1991
Filed:
Jun. 14, 1990
Applicant:
Inventors:
Manuela Benvenuti, Siena, IT;
Robert W Lenz, Amherst, MA (US);
Assignee:
Exxon Chemical Patents, Inc., Linden, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
528357 ;
Abstract
A method of polymerizing at least one .beta.-substituted-.beta.-propiolactone in the presence of a catalytic amount of isobutylaluminoxane in a solvent for the .beta.-propiolactone(s) and isobutylaluminoxane for a time and at a temperature to produce a poly(.beta.-substituted-.beta.-propiolactone) polyester and the polyesters produced thereby are disclosed.