Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1986-01-10
1987-07-21
Martin, Roland E.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
G03G 912
Patent
active
046818324
ABSTRACT:
A novel electrophotographic liquid developer is provided, comprising a coloring agent, a coating agent, a dispersant, an electric charge adjustor, and a carrier liquid, wherein said coating agent is a copolymer of a long-chain alkyl acrylate or methacrylate and a methyl methacrylate, and has a softening temperature within the range of from 40.degree. to 140.degree. C. and a number-average molecular weight of from 5.times.10.sup.3 to 1.times.10.sup.5. The long-chain alkyl group is a straight-chain or branched alkyl group having from 8 to 22 carbon atoms. In preferred embodiments, the long-chain alkyl methacrylate is 2-ethylhexyl methacrylate, lauryl methacrylate, or stearyl methacrylate.
REFERENCES:
patent: 3933667 (1976-01-01), Machida et al.
patent: 4147812 (1979-04-01), DeVolder et al.
patent: 4157973 (1979-06-01), Moutillier
patent: 4170563 (1979-10-01), Merrill et al.
patent: 4614699 (1986-09-01), Kitatani et al.
Kitatani Katuzi
Tachikawa Hiromichi
Watarai Syu
Yokoya Hiroaki
Fuji Photo Film Co. , Ltd.
Martin Roland E.
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