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. 07, 1997
Filed:
May. 19, 1995
Applicant:
Inventors:
Hidekazu Nakamoto, Kudamatsu, JP;
Chikao Oda, Kudamatsu, JP;
Norio Nakazato, Kudamatsu, JP;
Morihisa Maruko, Kudamatsu, JP;
Kazuo Ihara, Tokuyama, JP;
Takatoshi Kinoshita, Kudamatsu, JP;
Tokinobu Furukawa, Kudamatsu, JP;
Kenichi Watanabe, Kudamatsu, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526 88 ;
Abstract
Agitator blades formed by connecting a plurality of frame members are provided in a cylindrical or conical container to realize the agitator blade structure without rotary shaft. Therefore, less liquids being treated adhere onto the rotary shaft or the agitator blades and less residue of the liquids is formed, making it possible to obtain a final high viscosity polymer using the same agitator vessel preventing the quality from being deteriorated.