Title:
高分子蛍光体の製造方法及び高分子発光素子
Document Type and Number:
Japanese Patent JP4813695
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing a polymeric fluorophor having long service life when used in polymeric LED(light emitting diode). SOLUTION: This method for producing a polymeric fluorophor having fluorescence in a solid state is characterized by comprising the step of treating a polymeric fluorophor having a number-average molecular weight of 1×10<4> to 1×10<8> calculated as polystyrene with an acid. The other version of this method is characterized by comprising the steps of treating a polymeric fluorophor having a number-average molecular weight of 1×10<4> to 1×10<8> calculated as polystyrene with an acid and then treating the resultant polymeric fluorophor with an alkali. The other version of this method is characterized by comprising the steps of treating a polymeric fluorophor having a number- average molecular weight of 1×10<4> to 1×10<8> calculated as polystyrene with an acid and then treating the resultant polymeric fluorophor with an alkali and finally treating the resultant polymeric fluorophor with a substance free from both acid and alkali.
Inventors:
Konobu Noguchi
Ueda Masato
Ueda Masato
Application Number:
JP2001193053A
Publication Date:
November 09, 2011
Filing Date:
June 26, 2001
Export Citation:
Assignee:
Sumitomo Chemical Co., Ltd.
International Classes:
C08G61/00; C09K11/06; G09F9/00; G02F1/13357; G09F9/30; G09F9/35; H01L27/32; H01L51/50; H05B33/14
Domestic Patent References:
| JP9077854A | ||||
| JP6279572A | ||||
| JP7126616A | ||||
| JP2000504774A | ||||
| JP8188641A | ||||
| JP4482994B2 |
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Yukihiro Ikeda
Naganuma Akio
Hajime Asamura
Yukihiro Ikeda
Naganuma Akio