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:
Jan. 29, 1980
Filed:
Apr. 10, 1978
Jean Brichard, Vilvoorde, BE;
Jean-Claude Colery, Brussels, BE;
Interox, Brussels, BE;
Abstract
Superoxidized solid sodium perborate contains more than 17 wt.% active oxygen and less than 1.4 atoms hydrogen per active oxygen atom. The superoxidized solid sodium perborate in particle form is prepared by simultaneously introducing, into a fluidized bed dryer containing seeds of dimensions smaller than those of the perborate particles which are to be obtained, an aqueous solution containing hydrogen peroxide in concentrations above 30 wt.% and an aqueous solution containing sodium metaborate in such quantities that the molar ratio between the hydrogen peroxide and the sodium metaborate introduced into the fluidized bed is above 1.12. The water present in the aqueous solutions is evaporated by means of a fluidizing gas.