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. 24, 1990
Filed:
Nov. 10, 1988
Applicant:
Inventors:
John Meijer, Deventer, NL;
Reinder Torenbeek, Terwolde, NL;
Rolf H van den Berg, Kring Van Dorth, NL;
Assignee:
Akzo N.V., Arnhem, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C11D / ; C01B / ; C07C / ;
U.S. Cl.
CPC ...
252 94 ; 252 95 ; 25217413 ; 25218626 ; 25218638 ; 427212 ; 4272133 ; 264117 ; 562-2 ; 562-6 ;
Abstract
A process for the preparation of agglomerates containing diperoxydodecanedioic acid and a water-impermeable material, e.g. lauric acid, which process comprises the successive steps of agitating an aqueous suspension of the peroxy acid in the presence of the water-impermeable material and above the melting point thereof, cooling the suspension of the agglomerated particles thus obtained to a temperature at which the water-impermeable material turns solid, and isolating the resulting agglomerates. The agglomerates obtained are suitable for use as bleaching agent.