Method for making a negative working lithographic printing plate

Details Method for making a negative working lithographic printing plate Method for making a negative working lithographic printing plate

1984-01-30

1984-11-20

Schilling, Richard L.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

430280, 525529, 525530, 525531, 525532, G03C 171, C08F 800

Patent

active

044837585

ABSTRACT:
An O-epoxyalklyated tetrakis (hydroxyphenyl) alkane resin or the esterified reaction product of about one equivalent thereof with less than one equivalent of an ethylentically unsaturated organic acid can be combined with an aqueous alkali- and radiation sensitive, negative acting substance which when coated on a substrate forms a radiation sensitive negative working element.

REFERENCES:
patent: 4171974 (1979-10-01), Golda et al.
patent: 4237216 (1980-12-01), Skarvinko
patent: 4390615 (1983-06-01), Courtney et al.

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