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:
Feb. 21, 1995
Filed:
Mar. 29, 1994
Applicant:
Inventors:
Larry P Koskan, Orland Park, IL (US);
Kim C Low, Alsip, IL (US);
Abdul Rehman Meah, Justice, IL (US);
Anne Marie Atencio, Riverdale, IL (US);
Assignee:
Donlar Corporation, Bedford Park, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548520 ;
Abstract
Polyaspartic acid is produced by hydrolysis of anhydropolyaspartic acid that has been produced by thermal condensation polymerization of L-aspartic acid. Conversion in excess of 80 percent is achievable utilizing 'temperature vs. time' profiles.