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:
Jul. 27, 1982
Filed:
Mar. 13, 1981
Applicant:
Inventors:
Norbert Kuhne, Haan, DE;
Hasso Leischner, Dusseldorf, DE;
Wilfried Rahse, Dusseldorf, DE;
Willi Wust, Ratingen-Hosel, DE;
Assignee:
Henkel Kommanditgesellschaft auf Aktien, Dusseldorf-Holthausen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C08B / ;
U.S. Cl.
CPC ...
536101 ;
Abstract
This invention is directed to the preparation of alkali cellulose. More particularly, this invention is directed to a process for the preparation of alkali cellulose having a low water content, wherein finely divided cellulose suspended in a typical inert organic solvent is presteeped and the cellulose suspension is contacted with an alkali metal hydroxide/alcohol mixture and at least one aqueous alkalization solution of different concentration.