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:
Oct. 24, 2006
Filed:
Aug. 22, 2002
Applicants:
Marie-pierre Faure, Ville St-Laurent, CA;
Micheal Ibea, Montreal, CA;
Inventors:
Marie-Pierre Faure, Ville St-Laurent, CA;
Micheal Ibea, Montreal, CA;
Assignee:
Bioartificial Gel Technologies Inc,, Montreal, CA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 9/00 (2006.01); C08G 64/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for the preparation of activated polyethylene glycols, or PEG(NPC)s, comprising reacting polyethylene glycol with an activator while in the presence of an aromatic nitrogen containing heterocyclic base. The process is carried out at temperatures ranging from about 20 to about 30° C., more preferably at room temperature, and under stoichiometric conditions.