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. 03, 2009
Filed:
Aug. 05, 2004
Applicants:
Masahiro Umehara, Wakayama, JP;
Hiroyuki Yamashita, Wakayama, JP;
Yasumitsu Sakuma, Wakayama, JP;
Kazuhito Miyoshi, Wakayama, JP;
Inventors:
Masahiro Umehara, Wakayama, JP;
Hiroyuki Yamashita, Wakayama, JP;
Yasumitsu Sakuma, Wakayama, JP;
Kazuhito Miyoshi, Wakayama, JP;
Assignee:
Kao Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides a process for producing a granular anionic surfactant, including the steps of carrying out drying and granulation simultaneously while adding an anionic surfactant paste to a powder raw material under reduced pressure in a granulator provided with a stirring blade and a cracking blade to obtain granules.