Liquid developer composition for lithographic masters

Details Liquid developer composition for lithographic masters Liquid developer composition for lithographic masters

1975-10-24

1977-11-15

Weinblatt, Mayer

Compositions

Electrolytes for electrical devices

96 1LY, 101451, 106 2, 427 17, G03G 912

Patent

active

040584704

ABSTRACT:
A liquid developer for treatment to convert a latent electrostatic image to an ink receptive, water repellent, oleophilic image for use in the production of multiple copies by lithographic technique in which, in addition to the toner particles and organic solvent, the developer contains a polyvinyl acetate as a binder and a hydrophobic colloidal silica in the ratio of 1 part silica to 1.5 to 4 parts binder whereby the oleophilic properties of the image are markedly improved.

REFERENCES:
patent: 2890174 (1959-06-01), Mayer
patent: 3234873 (1966-02-01), Miller
patent: 3417019 (1968-12-01), Beyer
patent: 3573041 (1971-03-01), Van Engeland et al.
patent: 3617266 (1971-11-01), Williams et al.
patent: 3714048 (1973-01-01), Adachi et al.
patent: 3714891 (1973-02-01), Van Dusen et al.
patent: 3793234 (1974-02-01), Ormsbee
patent: 3821931 (1974-07-01), Yamaji et al.
patent: 3908547 (1975-09-01), Rochlitz
patent: 3915874 (1975-10-01), Machida
patent: 3939087 (1976-02-01), Vijayendran

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