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. 24, 1977
Filed:
Feb. 26, 1976
Applicant:
Inventor:
Kinjiro Matsunaga, Funabashi, JA;
Assignee:
Kao Soap Co., Ltd., Tokyo, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ; C01B / ; D06L / ; C01B / ;
U.S. Cl.
CPC ...
4234 / ; 8107 ; 252 95 ; 252186 ; 423265 ;
Abstract
Sodium percarbonate is stabilized by a metal chelating agent which will produce a chelate compound insoluble or slightly soluble in water. Such metal chelating agent is dispersed in the reaction mixture with the aid of a surface active agent when sodium carbonate and hydrogen peroxide are reached and the crystals of sodium percarbonate are separated out.