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:
Sep. 11, 1979
Filed:
Apr. 07, 1978
Applicant:
Inventor:
Karl Holzer, Linz, AT;
Assignee:
Laevosan-Gesellschaft mbH & Co KG, Linz, AT;
Primary Examiner:
Int. Cl.
CPC ...
C08B / ;
U.S. Cl.
CPC ...
536111 ; 424180 ;
Abstract
A process for preparing hydroxyethyl starch suitable as a plasma extender by alkaline hydroxyethylation and neutralization wherein the hydroxyethyl starch is extracted with a solvent such as dimethylformamide to remove the salts formed on neutralization.