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:
Dec. 01, 2020
Filed:
Nov. 27, 2019
Applicant:
Calyxia, Bonneuil-sur-Marne, FR;
Inventors:
Jamie Walters, Paris, FR;
Damien Demoulin, Paris, FR;
Assignee:
CALYXIA, Bonneuil-sur-Marne, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 13/16 (2006.01); C08F 2/48 (2006.01); C08F 2/22 (2006.01); C08L 57/00 (2006.01); C08L 87/00 (2006.01);
U.S. Cl.
CPC ...
B01J 13/16 (2013.01); C08F 2/22 (2013.01); C08F 2/48 (2013.01); C08L 57/00 (2013.01); C08L 87/00 (2013.01); C08F 2500/17 (2013.01); C08L 2312/00 (2013.01);
Abstract
Solid microcapsules are prepared by adding, with stirring, a composition having at least one active ingredient to a photocrosslinkable polymeric composition to obtain an emulsion, and adding the emulsion, with stirring, to a viscous composition. The viscosity of the viscous composition is greater than 2000 mPa·s at 25° C. A double emulsion is obtained, to which shear is applied at a rate less than 1000 s, to obtain a sheared emulsion. Polymerization of the sheared emulsion is accomplished by photopolymerization.