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:
May. 10, 2016
Filed:
Dec. 23, 2014
Applicant:
Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
Inventors:
Aurélien Auger, Le Mans, FR;
Olivier Poncelet, Grenoble, FR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 17/07 (2006.01); B01J 2/00 (2006.01); B01J 13/02 (2006.01); C09B 67/02 (2006.01); D21H 17/20 (2006.01); D21H 21/54 (2006.01); C08K 5/06 (2006.01); C08K 5/3492 (2006.01); C08K 5/42 (2006.01); D21H 17/04 (2006.01); D21H 17/06 (2006.01); D21H 17/09 (2006.01); D21H 17/34 (2006.01); D21H 17/35 (2006.01);
U.S. Cl.
CPC ...
B01J 2/003 (2013.01); B01J 13/02 (2013.01); C08K 5/06 (2013.01); C08K 5/3492 (2013.01); C08K 5/42 (2013.01); C09B 67/0097 (2013.01); D21H 17/04 (2013.01); D21H 17/06 (2013.01); D21H 17/07 (2013.01); D21H 17/09 (2013.01); D21H 17/20 (2013.01); D21H 17/34 (2013.01); D21H 17/35 (2013.01); D21H 21/54 (2013.01);
Abstract
This method of preparing particles having a hydrophilic core coated with a hydrophilic core coated with a hydrophobic polymeric layer includes the steps of: preparing an aqueous phase comprising at least one hydrophilic optical brightener or colorant; preparing an organic phase including at least one hydrophobic polymer; forming a water-in-oil inverse emulsion by adding the aqueous phase into the organic phase; forming the particles by thermal quenching of the emulsion; and isolating the particles thus obtained.