Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1989-09-25
1990-10-02
Welsh, J. David
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
526934, 525934, 524901, G03G 910
Patent
active
049606646
ABSTRACT:
A toner for developing an electrostatic latent image containing a polyester resin binder obtained by condensation polymerization of a diol component and a mixture of acid components. The acid components are an aliphatic unsaturated dicarboxylic acid or an acid anhydride thereof and a polybasic carboxylic acid having not less than three carboxylic acid groups or an acid anhydride thereof. A ratio of the polybasic carboxylic acid having not less than three carboxylic acid groups or the acid anhydride thereof to the total acid components is in the range of from 5 mol % to less than 30 mol %.
REFERENCES:
patent: 4657837 (1987-04-01), Morita et al.
Ikeuchi Satoru
Kasuya Takahira
Masaki Hiroya
Takagiwa Hiroyuki
Takahashi Jiro
Konishiroku Photo Industry Co,., Ltd.
Welsh J. David
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