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:
May. 26, 2015
Filed:
Feb. 28, 2011
Method for producing cationized cellulose and method for producing cationized hydroxyalkyl cellulose
Akiyoshi Kimura, Wakayama, JP;
Keiichiro Tomioka, Wakayama, JP;
Toru Nishioka, Wakayama, JP;
Kohei Nakanishi, Wakayama, JP;
Akiyoshi Kimura, Wakayama, JP;
Keiichiro Tomioka, Wakayama, JP;
Toru Nishioka, Wakayama, JP;
Kohei Nakanishi, Wakayama, JP;
KAO CORPORATION, Tokyo, JP;
Abstract
A production method of a cationized cellulose or a cationized hydroxyalkylcellulose, including step 1 for adding a cationizing agent to cellulose and mechanically decrystallizing the cellulose and step 2 for adding a basic compound to the mixture obtained in step 1 and mechanically decrystallizing the cellulose, or a production method of a cationized cellulose or a cationized hydroxyalkylcellulose, including a step 3 for adding a basic compound to cellulose and mechanically decrystallizing the cellulose and step 4 for adding a cationizing agent to the mixture obtained in step 3 and mechanically decrystallizing the cellulose. The cellulose and the cationizing agent are allowed to react with each other in step 2 or step 4.