Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Patent
1985-05-24
1986-10-21
Kittle, John E.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
430326, 430914, 430919, 430920, 430921, 430922, 430923, 430924, 430311, G03C 1495, G03C 516
Patent
active
046185640
ABSTRACT:
Positive images are produced by (i) exposing to actinic radiation in a predetermined pattern a composition supported on a substrate, which composition comprises a film-forming organic material and a substance which releases a sulphonic acid on exposure to actinic radiation, thereby rendering the composition more soluble in the developer in the exposed areas than the unexposed areas, and (ii) treating the composition with the aqueous base developer to remove the unexposed areas. The image-forming process may be used in the production of printing plates and electrical circuits.
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Derwent Abstract 72755 E/35 (European Patent Application 58638, Aug. 25, 1982).
Derwent Abstract 83-724636/31 (European Patent Application No. 84515-A, Jul. 27, 1983).
Demmer Christopher G.
Irving Edward
Ciba-Geigy Corporation
Hall Luther A. R.
Hamilton Cynthia
Kittle John E.
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