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:
Mar. 26, 1985
Filed:
Jun. 14, 1983
Applicant:
Inventors:
Thomas C Usher, Nassau, BS;
Natu Patel, Muskham, Ontario, CA;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08B / ;
U.S. Cl.
CPC ...
536 51 ; 536112 ;
Abstract
This invention relates to an improved process for the manufacture of diethylaminoethyl dextran (DEAE dextran) and the diethylaminoethyl derivative of hydrogenated dextran (DEAE hydrodextran). A product of greater purity and improved color is obtained by the addition of a borohydride, such as sodium borohydride during manufacture to generate hydrogen in situ during the reaction.