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:
Feb. 01, 2005
Filed:
Feb. 27, 2003
Sakae Obara, Niigata-ken, JP;
Sakae Obara, Niigata-ken, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
Provided is a cellulose polymer having a water retention property, and good feeling upon use when applied to the skin and being suitably used as a carrier. More specifically, provided is a low-substituted cellulose ether powder comprising primary particles wherein at least 95% by weight of the primary particles have an aspect ratio of 1.0 to 1.5. Also provided is a production process of a low-substituted cellulose ether powder having a molar substitution degree of 0.05 to 1.0, comprising, during or after the addition of an acid to an alkali solution of low-substituted cellulose ether to neutralize the solution, triturating a resulting mixture; and spray-drying a resulting dispersion. Further provided is a production process of a low-substituted cellulose ether powder having a molar substitution degree of 0.05 to 1.0, comprising shear-triturating a low-substituted cellulose ether powder in water so as to swell-disperse the powder and spray-drying a resulting dispersion.