Method of manufacturing a silicon-type charge transporting mater

Details Method of manufacturing a silicon-type charge transporting mater Method of manufacturing a silicon-type charge transporting mater

1996-11-04

1997-11-18

Richter, Johann

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548962, 556407, 556413, 556424, 556465, 430 59, 430 76, 430 78, C07F 708, C07F 710, G03G 1305

Patent

active

056889615

ABSTRACT:
A method of manufacturing charge transporting materials which impart a charge transporting property to a polysiloxane resin, and which is soluble in the resin. The charge transporting material is an aromatic substituted tertiary amine with a plurality of aromatic groups, and a silyl group introduced via a hydrocarbon group, into at least one of the aromatic groups. The method is characterized by using an unsaturated aliphatic group bonded to an aromatic group which makes up the silicon-type charge transporting compound, or using a newly bonded unsaturated aliphatic group which is bonded to a silane in which the substituent for silicon is hydrogen or a hydrolyzable group. This is conducted in the presence of a platinum compound as catalyst by means of hydrosilylation. The silicon-type charge transporting material is then brought into contact with an adsorbent for the platinum compound, causing the platinum compound to be adsorbed onto the adsorbent. The platinum compound is removed along with the adsorbent, so that the concentration of residual platinum compound is less than 10 ppm.

REFERENCES:
patent: 4752549 (1988-06-01), Otsuka et al.
patent: 5272029 (1993-12-01), Sakai et al.

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