Title:
PHOSPHORESCENT MATERIAL, COMPOSITION CONTAINING THE SAME, AND METHOD OF ABSORBING ENERGY WITH THE SAME
Document Type and Number:
WIPO Patent Application WO/2000/060026
Kind Code:
A1
Abstract:
A phosphorescent material comprising particles of at least one phosphorescent substance selected among a phosphorescent substance comprising a compound represented by the following formula (1) as mother crystals, a phosphorescent substance comprising a compound represented by the following formula (2) as mother crystals, and a phosphorescent substance represented by the following formula (3) and, bonded to the surface of the particles, at least one surface-treating agent selected among (a) a silane compound having an aliphatic group, (b) a titanate compound having an aliphatic group, and (c) a zirconate compound having an aliphatic group. MAl¿2?O¿4? (1) (In the formula, M represents at least one element selected among calcium, strontium, and barium.).Sr¿4?Al¿14?O¿25? (2).(SrEu)Al¿2?O¿4?.[(SrEu)O.n(Al¿1-a-b?B¿b?Q¿a?)¿2?O¿3?(OH)] (3) (In the formula, Q represents at least one element selected among Bi, Ca, Mg, and Mn; 0.0005$m(F)a$m(F)0.002; 0.001$m(F)b$m(F)0.35; and 1$m(F)n$m(F)7.
Inventors:
SAKURAI FUMIO (JP)
ASAI SATOSHI (JP)
ASAI SATOSHI (JP)
Application Number:
PCT/JP1999/004530
Publication Date:
October 12, 2000
Filing Date:
August 23, 1999
Export Citation:
Assignee:
SOMAR CORP (JP)
SAKURAI FUMIO (JP)
ASAI SATOSHI (JP)
SAKURAI FUMIO (JP)
ASAI SATOSHI (JP)
International Classes:
C09K11/02; C09K11/77; (IPC1-7): C09K11/08; C08L101/00; C08K3/00; C08K5/07; C09K5/3457
Foreign References:
| JPH08183955A | 1996-07-16 | |||
| JPH0940944A | 1997-02-10 | |||
| JPH0995671A | 1997-04-08 | |||
| JPH06270155A | 1994-09-27 | |||
| JPH09302142A | 1997-11-25 | |||
| JPH11158205A | 1999-06-15 |
Attorney, Agent or Firm:
Ikeura, Toshiaki (Yoyogi 1-chome Shibuya-ku Tokyo, JP)
Download PDF: