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.:

US 6660778 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 09, 2003

Filed:

May. 15, 2002
Applicant:
Inventors:

Nicolas Durand, Lyons, FR;

Hervé Maze, Lyons, FR;

Jean-Michel Mercier, Thiais, FR;

Assignee:

Rhodia Chimie, Boulogne Billancourt Cedex, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01F 3/08 ; C08J 3/03 ;
U.S. Cl.
CPC ...
B01F 3/08 ; C08J 3/03 ;
Abstract

The invention concerns a method for emulsifying, without grinding, a silicone in water in the presence of a surfactant, at a temperature less than 60° C. and under shearing at less than 100 s , comprising steps which consist in: a) preparing a primary oil-in-water emulsion including said surfactant and said silicone under shearing at less than 100 s , by adding an aqueous phase to an oily phase comprising said silicone; b) enriching the resulting emulsion with an enriching oily phase comprising said silicone by mixing, under shearing at less than 100 s , and c) if required, repeating one or several times the operation at step b) until the desired concentration in surfactant and/or silicone in the final emulsion is obtained and/or until the desired particle size distribution is obtained.


Find Patent Forward Citations

Durand, Nicolas. (2003). Method for emulsifying heat-sensitive silicones emulsion without grinding (U.S. Patent No. 6660778). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6660778

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