Gas separation: apparatus – Electric field separation apparatus – Electrode cleaner – apparatus part flusher – discharger – or...
Patent
1967-06-09
1976-03-09
Louie, Jr., Won H.
Gas separation: apparatus
Electric field separation apparatus
Electrode cleaner, apparatus part flusher, discharger, or...
96 88, 427304, 427305, 427438, 96 49, 96 92, G03C 524, G03C 100
Patent
active
039429830
ABSTRACT:
This invention involves an imaging process in which a light image is projected onto a photosensitive medium having a layer capable upon light exposure of directly generating nuclei of a metal more noble than silver, such as palladium, which metal is catalytic to the electroless deposition of a non-noble metal, and thereafter selectively providing non-noble free metal onto the noble metal nuclei by electroless deposition, thereby providing a visible print of the original light image. The photosensitive layer in such media may comprise a compound of a metal more noble than silver and a photosensitive composition which can generate upon light exposure a reducing agent for said noble metal. In another embodiment, the photosensitive layer may contain a photoreducible metal salt which, upon light exposure, generates nuclei of a metal more noble than silver.
REFERENCES:
patent: 2267953 (1941-12-01), Schumpelt
patent: 3011920 (1961-12-01), Shipley
patent: 3719490 (1973-03-01), Yudelson et al.
Di Blas Umberto
Knirsch Franco
Louie, Jr. Won H.
Minnesota Mining and Manufacturing Company
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