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. 27, 1990
Filed:
Oct. 26, 1988
Applicant:
Inventors:
Takamichi Komabashiri, Takasago, JP;
Toragoro Mitani, Takasago, JP;
Hiroaki Yamauchi, Kakogawa, JP;
Hideo Yasui, Kobe, JP;
Assignee:
Kanegafuchi Chemical Industry Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B / ;
U.S. Cl.
CPC ...
134 42 ; 134-2 ; 134-7 ; 134 221 ; 134 2216 ; 134 2219 ; 264 39 ; 252D / ; 252174 ; 525 74 ; 528484 ;
Abstract
A chemical cleaning method for removing scales and other substances deposited on the interior of a polymerization reactor used in emulsion polymerization or suspension polymerization. This method comprises chemically cleaning the interior using an aqueous solution or dispersion of an alkali agent and a surfactant. According to this method of cleaning, scales deposited on the interior of a polymerization reactor, in particular, scales deposited during polymerization on the inside surface, an agitator and baffle-plates of the reactor are completely removed.