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:
May. 17, 1994
Filed:
Aug. 12, 1992
Applicant:
Inventors:
Donald E Kiely, Birmingham, AL (US);
Liang Chen, Birmingham, AL (US);
David W Morton, Birmingham, AL (US);
Assignee:
UAB Research Foundation, Birmingham, AL (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560180 ; 549305 ; 549314 ;
Abstract
A single step process for converting aldaric acid salts to activated aldarates utilizing a lower alkanol as both solvent and esterifying agent is described. The activated aldarates are particularly useful as monomers for polymerizations with primary diamines in which the nitrogen atoms are bound to aliphatic carbon atoms to form poly(aldaramides).