Radiation imagery chemistry: process – composition – or product th – Diazo reproduction – process – composition – or product – Composition or product which contains radiation sensitive...
Patent
1980-11-28
1982-06-29
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Diazo reproduction, process, composition, or product
Composition or product which contains radiation sensitive...
430175, 430176, 430302, 430325, 430906, G03C 160, G03F 708
Patent
active
043373070
ABSTRACT:
A light-sensitive composition for the preparation of printing plates and photoresists is described, which comprises as the light-sensitive compound a diazonium salt polycondensation product and as the binding agent a branched polyurethane resin which contains no terminal isocyanate groups and the terminal units of which are at least partially derived from dihydroxy compounds. The printing plates produced with this light-sensitive composition are easily developable with aqueous developer solutions and yield long press runs.
REFERENCES:
patent: 3660099 (1972-05-01), Maimthia
patent: 3840390 (1974-10-01), Kozu et al.
patent: 3850770 (1974-11-01), Juna et al.
patent: 4139506 (1979-02-01), Thoese et al.
patent: 4186017 (1980-01-01), Palmer
Bowers Jr. Charles L.
Bryan James E.
Hoechst Aktiengesellschaft
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