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:
Mar. 22, 2016
Filed:
Nov. 10, 2011
Applicants:
Valérie Buissette, Paris, FR;
Thierry Le-mercier, Rosny-sous-Bois, FR;
Franck Aurissergues, Argenteuil, FR;
Inventors:
Valérie Buissette, Paris, FR;
Thierry Le-Mercier, Rosny-sous-Bois, FR;
Franck Aurissergues, Argenteuil, FR;
Assignee:
RHODIA OPERATIONS, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 11/77 (2006.01); C09K 11/02 (2006.01); C04B 35/628 (2006.01);
U.S. Cl.
CPC ...
C09K 11/7774 (2013.01); C04B 35/62897 (2013.01); C09K 11/02 (2013.01);
Abstract
A composition comprising an inorganic core and an aluminate shell is described. The aluminate can have the formula (1):(CeTb)MgAlO  (1),where a, b, x and y comply with the relations a+b=1−0.2≦x≦+0.2 and −0.2≦y≦+0.2, wherein the shell uniformly covers the inorganic core over a thickness of no less than 300 nm. A phosphor is also described that can be obtained by calcinating the composition at a temperature of at least 1200° C.