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. 29, 2018
Filed:
May. 13, 2009
Applicants:
Valérie Buissette, Paris, FR;
Thierry Le-mercier, Rosny-sous-Bois, FR;
Laurent Thiers, Savigny-sur-Orge, FR;
Inventors:
Valérie Buissette, Paris, FR;
Thierry Le-Mercier, Rosny-sous-Bois, FR;
Laurent Thiers, Savigny-sur-Orge, FR;
Assignee:
Rhodia Operations, Aubervilliers, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/77 (2006.01); C01B 25/45 (2006.01); H01J 61/44 (2006.01);
U.S. Cl.
CPC ...
C09K 11/7777 (2013.01); C01B 25/45 (2013.01); H01J 61/44 (2013.01);
Abstract
Phosphate particulates of at least one rare-earth metal (Ln), with Ln being at least one rare-earth metal selected from among cerium and terbium and optionally lanthanum are in the form of a suspension in a liquid phase of primary isotropic monocrystalline monazite particles having an average size of at least 25 nm and agglomerated into secondary particles having an average size of at most 400 nm; useful luminophores are produced from such phosphate particulates.