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. 11, 2004
Filed:
Jun. 18, 2001
Applicant:
Inventors:
Rolando Barbucci, Milan, IT;
Giancarlo Sportoletti, Milan, IT;
Assignee:
Farmila-Thea Faraceutici S.p.A., Settimo Milanese, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08B 3/700 ;
U.S. Cl.
CPC ...
C08B 3/700 ;
Abstract
A process for the preparation of cross-linked polysaccharides containg carboxy groups. The process comprises a first step of activating the carboxy groups in an anhydrous aprotic solvent and then reacting with a polyamine. The cross-linked polysaccharide may be subjected to sulfonation of the five hydroxy groups.