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:
Nov. 03, 1981
Filed:
Apr. 16, 1980
Applicant:
Inventors:
Jean Malafosse, Sassenage, FR;
Andre Girou, Toulouse, FR;
Herve Olivier, Santenay-les-Bains, FR;
Michel Dupont, Chagny, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423279 ; 423268 ; 423281 ;
Abstract
In a process of making sodium perborate, crystallization is performed in the presence of an organic polymer with a high potential content of free carboxylic groups derived from maleic anhydride, selected from the copolymers of maleic anhydride with an organic compound with an ethylene bond. The process is applicable to obtaining sodium perborate crystals of high apparent density of good resistance to abrasion and of limited, relatively high granulometric size.