Title:
【発明の名称】被覆された湿気不浸透性赤色蛍光体
Document Type and Number:
Japanese Patent JP2002527570
Kind Code:
A
Abstract:
An adherent, transparent moisture barrier is applied to alkaline earth sulfide phosphor particles by stirring in an anhydrous polar solvent including a fluorinating compound present in a concentration of no higher than 0.02 molar until a transparent fluorine-containing moisture-impervious coating has been applied to the particles. The polar solvent is removed and the coated particles dried. A second moisture barrier can also be applied to ensure long term resistance of the phosphors to degradation by moisture.
More Like This:
Inventors:
Yo-cam, perry, neal
Application Number:
JP2000575961A
Publication Date:
August 27, 2002
Filing Date:
October 15, 1999
Export Citation:
Assignee:
Sarnoff Corporation
International Classes:
C09K11/08; C09C1/02; C09C3/06; C09K11/02; C09K11/56; (IPC1-7): C09K11/08; C09C1/02; C09C3/06; C09K11/56
Attorney, Agent or Firm:
Yuichi Yamada (1 person outside)