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. 02, 1990
Filed:
Jul. 06, 1989
Applicant:
Inventor:
Elie Ahad, Ste-Foy, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
552 11 ;
Abstract
The invention disclosed is an improved process for the preparation of hydroxy-terminated aliphatic polyesters having alkyl substituents, such as glycidyl azide polymer. The improved process involves formation of the polymer in a single step starting from epichlorohydrin monomer. The reaction is effected in a suitable polar organic solvent at elevated temperature for 15 to 24 hours.