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. 30, 1998
Filed:
Jul. 03, 1996
Applicant:
Inventors:
Shasy-Fong Yen, Atlanta, GA (US);
Mary Sou, Alpharetta, GA (US);
Assignee:
CIBA Vision Corporation, Duluth, GA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08B / ; A61K / ;
U.S. Cl.
CPC ...
536124 ; 536 20 ; 5361231 ; 536127 ; 514 55 ;
Abstract
A process for sterilizing a polysaccharide composition containing chitosan, a chitosan derivative or a chitin derivative without substantially degrading the polysaccharide. The process has the steps of blending the polysaccharide in a solvent to form a solution or suspension; sterilizing the solution or suspension; dissolving suspended particles, if present; and then aseptically adjusting the pH of the sterilized solution. There is additionally provided a polyol stabilizing agent suitable for the polysaccharide composition.