Method for forming silver precipitating nuclei

Details Method for forming silver precipitating nuclei Method for forming silver precipitating nuclei

1979-12-31

1981-03-31

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 105, 106135, 106137, 252313R, 430247, C23C 302

Patent

active

042591155

ABSTRACT:
Noble metal silver precipitating nuclei are prepared by reducing a noble metal salt or complex in the presence of a polymer with a Sn.degree. suspension formed by the borohydride reduction of a tin salt. The invention is also directed to film units employing said nuclei.

REFERENCES:
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patent: 2726154 (1955-12-01), Land
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patent: 3019124 (1962-01-01), Rogers
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patent: 3284208 (1966-11-01), Land
patent: 3536488 (1970-10-01), Land
patent: 3615426 (1971-10-01), Debruyn
patent: 3615427 (1971-10-01), Debruyn
patent: 3615428 (1971-10-01), Weed
patent: 3615429 (1971-10-01), Weed
patent: 3615440 (1971-10-01), Bloom
patent: 3647440 (1972-03-01), Rasch
patent: 3730716 (1973-05-01), Land et al.
patent: 3894871 (1975-07-01), Land
Land, "One Step Photography", Photographic Journal, pp. 7-15, Jan. 1950.

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