Radiation imagery chemistry: process – composition – or product th – Silver halide colloid tanning process – composition – or product
Patent
1994-06-23
1995-02-21
Neville, Thomas R.
Radiation imagery chemistry: process, composition, or product th
Silver halide colloid tanning process, composition, or product
430598, 430599, 564 59, G03C 106
Patent
active
053914597
ABSTRACT:
Novel compounds have been discovered that are particularly effective as nucleation accelerators or boosters when employed with hydrazide nucleators in the formulation of silver halide emulsions for lithographic film. The novel compounds contain bis ureido groups joined by an alkyleneoxy moiety or recurring alkyleneoxy moieties. The 2-nitrogen of each ureido group can carry groups comprising hydrogen, aryl, alkyl or dialkylaminoalkyl, alike or different.
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Husain Syeda
Piechowski Allan P.
Pilot John F.
Matalon Jack
Neville Thomas R.
Sun Chemical Corporation
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