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:
Apr. 19, 1977
Filed:
Aug. 15, 1974
Applicant:
Inventor:
Paul Mollard, Sainte Foy les Lyon, FR;
Assignee:
Produits Chimiques Ugine Kuhlmann, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
4234 / ;
Abstract
Processes for the preparation of alkali metal percarbonate which comprise separately spraying into a reaction chamber a hot aqueous solution of sodium hydroxide and an aqueous solution of hydrogen peroxide and introducing a hot gas containing air and carbon dioxide to obtain sodium percarbonate, the product having a mean particle diameter between 0.1 and 0.5 mm, an apparent density between 0.2 and 1 g/cm.sup.3, and an active oxygen content between 7 and 15.3 percent, the sodium percarbonate being particularly adapted for use in domestic laundry products.