Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1980-12-30
1982-05-25
Martin, Jr., Roland E.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430109, 430110, 430903, G03G 908
Patent
active
043317553
ABSTRACT:
Electrostatic developer composition and method for developing therewith an electrostatic charge pattern of positive charge wherein the composition is free of carrier particles and consists of powder particles containing at least 80% by weight of a mixture of at least 30% by weight of: a polyester derived from fumaric acid or a mixture of at least 95 mol % fumaric acid and isophthalic acid and a polyol blend of propoxylated bisphenol characterized by the formula: ##STR1## wherein m and n are integers and added together average from 2 to 7, and at least one of (1) a copolymer of ethylene, maleic acid and/or maleic anhydride wherein from 50 to 70 mol % of ethylene repeating units are present, and (2) a wax of the group consisting of castor wax and montan wax.
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De Roo Pierre R.
Gilliams Yvan K.
AGFA-GEVAERT N.V.
Daniel William J.
Martin Jr. Roland E.
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