Title:
PREPARATION OF POLYCARBONATE RESIN HAVING TRIARYLAMINE STRUCTURE
Document Type and Number:
Japanese Patent JP3471227
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a resin useful as a charge transporting polymer material for an organic photoreceptor by polycondensation using a monomer having a hydroxyl group-protected triarylamine structure as a diphenol compound component.
SOLUTION: A polycondensation is effected using, as a diphenol compound component, a monomer (e.g. a compound of the formula) having a triarylamine structure with its hydroxyl group protected preferably as a sulfonyl or acyl ester. Preferably the monomer having a triarylamine structure with its hydroxyl group protected is subjected to the polycondensation reaction with the protecting group removed. Thus, a problem of occurrence with time of a by-produced coloring impurity caused by the triarylamine structure of a diol compound used can be solved by maintaining stability in spite of lapse of time by protecting the dial compound, and removing the protecting group in polymerization.
Inventors:
Masaomi Sasaki
Issei Nagai
Chiaki Tanaka
Lee Hong Guk
Shinichi Kawamura
Suzuka Suzuka
Katsuhiro Morooka
Issei Nagai
Chiaki Tanaka
Lee Hong Guk
Shinichi Kawamura
Suzuka Suzuka
Katsuhiro Morooka
Application Number:
JP18923098A
Publication Date:
December 02, 2003
Filing Date:
July 03, 1998
Export Citation:
Assignee:
株式会社リコー
保土谷化学工業株式会社
保土谷化学工業株式会社
International Classes:
G03G5/07; C08G64/12; C08G64/16; (IPC1-7): C08G64/12; C08G64/16
Domestic Patent References:
| JP1083090A | ||||
| JP9127713A |
Other References:
【文献】米国特許4452968(US,A)
Attorney, Agent or Firm:
Hidetake Komatsu (2 outside)