公开(公告)号：US20030230741A1

公开(公告)日：2003-12-18

申请号：US10171737

申请日：2002-06-14

Applicant: OSRAM SYLVANIA Inc.

Inventor： Chen-Wen Fan ,  Richard G.W. Gingerich

IPC: C09K011/68

CPC classification number: C09K11/584 ,  H05B33/145 ,  Y02B20/181

Abstract: A long-life, white-emitting phosphor blend is provided which comprises about 75 wt. % of a first electroluminescent phosphor having an x color coordinate of about 0.530 and a y color coordinate of about 0.455; about 10 wt. % of a second electroluminescent phosphor having an x color coordinate of about 0.185 and a y color coordinate of about 0.440, said second electroluminescent phosphor containing about 600 ppm copper; and about 15 wt. % of a third electroluminescent phosphor having an x color coordinate of about 0.160 and a y color coordinate of about 0.175, said third electroluminescent phosphor containing about 300 ppm copper.

Abstract translation: 提供长寿命的白色发光荧光粉共混物，其包含约75wt。 ％的第一电致发光荧光体的x色坐标为约0.530，y色坐标为约0.455; 约10重量％ 具有约0.185的x色坐标和约0.440的y色坐标的第二电致发光荧光体的百分比，所述第二电致发光荧光体含有约600ppm的铜; 和约15wt。 具有约0.160的x色坐标和约0.175的y色坐标的第三电致发光荧光体的百分比，所述第三电致发光磷光体含有约300ppm的铜。

公开(公告)号：US20040038832A1

公开(公告)日：2004-02-26

申请号：US10639542

申请日：2003-08-12

Applicant: OSRAM SYLVANIA Inc.

Inventor： Richard G.W. Gingerich

IPC: C10M125/22 ,  C01G041/00

CPC classification number: C01G41/00 ,  C01P2004/03 ,  C01P2004/61 ,  C10M103/06 ,  C10M125/22 ,  C10M177/00 ,  C10M2201/065 ,  C10M2201/0653 ,  C10N2210/06 ,  C10N2220/082 ,  C10N2250/08 ,  C10N2260/10 ,  C10N2270/00

Abstract: A tungsten disulfide powder comprised of macro-spherical particles of tungsten disulfide having an average particle diameter of from about 5 to about 50 micrometers is prepared by successively treating spray-dried powders of ammonium metatungstate with heat in air and sulfidizing the resultant tungsten trioxide in a carbon disulfide-containing atmosphere at about 750null C. The tungsten disulfide powder may also be formed to have a bimodal particle size distribution of the macro-spherical particles and smaller, dispersed micro- to submicron-sized fine particles.

Abstract translation: 通过在空气中依次处理偏钨酸铵的喷雾干燥粉末并将所得到的三氧化钨硫化，制备由平均粒径为约5至约50微米的二硫化钨的大球形颗粒组成的二硫化钨粉末 含二硫化碳的气氛在约750℃。二硫化钨粉末也可以形成为具有大球形颗粒的双峰粒度分布和较小的分散的微米至亚微米尺寸的细颗粒。