Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1985-07-03
1986-10-21
Welsh, John D.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
428404, G03G 908
Patent
active
046185569
ABSTRACT:
A developer for electrostatography containing a positive charge controlling agent comprising fumed silica particles treated with a silane coupling agent or titanate coupling agent and controlled to an appropriate degree of hydrophobicity has a stable and sharp distribution in amount of positive triboelectric charges under a variety of conditions including higher temperature-higher humidity or lower temperature-lower humidity conditions. This developer is useful particularly in an electrophotographic process employing a developer carrying member for charging of the developer.
REFERENCES:
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patent: 3720617 (1973-03-01), Chatterji et al.
patent: 3983045 (1976-09-01), Jugle et al.
patent: 4039331 (1977-08-01), Lee
patent: 4072796 (1978-02-01), Reinhardt et al.
patent: 4499168 (1985-02-01), Mitsuhashi
Canon Kabushiki Kaisha
Welsh John D.
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