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. 18, 1983
Filed:
Mar. 04, 1982
Applicant:
Inventors:
Assignee:
Kao Soap Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08B / ;
U.S. Cl.
CPC ...
536 98 ; 81551 ;
Abstract
Carboxymethyl cellulose fibers are manufactured by reacting a starting cellulose with an alkaline solution containing an etherifying agent dissolved therein while the cellulose is filled in a reactor and the solution is circulating by a pump so as to come into continuous contact with the cellulose.