Title:
METHOD OF PURIFYING DIAMINE COMPOUND
Document Type and Number:
Japanese Patent JP2007045758
Kind Code:
A
Abstract:
To provide a method of purifying a diamine compound which can obtain the diamine compound having increased sensitivity by further improving electric charge transportability.
This method of purifying a diamine compound comprises a dissolution step of compounding a diamine compound of formula (1) with a good solvent for the diamine compound of formula (1) and heating the resulting compound to dissolve the diamine compound of formula (1) and a deposition step of cooling the solution obtained in the dissolution step to deposit a crystal of the diamine compound of formula (1).
Inventors:
INAGAKI YOSHIO
OKADA HIDEKI
ICHIGUCHI TETSUYA
OKADA HIDEKI
ICHIGUCHI TETSUYA
Application Number:
JP2005232506A
Publication Date:
February 22, 2007
Filing Date:
August 10, 2005
Export Citation:
Assignee:
KYOCERA MITA CORP
International Classes:
C07C209/84; C07C211/54; G03G5/00; G03G5/06
Attorney, Agent or Firm:
Inaoka cultivation
Mio Kawasaki
Mio Kawasaki
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