Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – To produce multiple image on medium or plural radiant energy...
Patent
1995-11-13
1997-03-11
Baxter, Janet C.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
To produce multiple image on medium or plural radiant energy...
430634, 430635, 430636, 430642, G03C 1047
Patent
active
056100027
ABSTRACT:
This invention describes gelatin thickening compounds for photographic coating melts with the general structure: ##STR1## wherein: A is an aromatic or heteroaromatic group;
X is SO.sub.3 M or CO.sub.2 M
M is H or an alkali metal, ammonium or pyridinium ion; each R1 and R2 is independently an alkyl or substituted alkyl group, each alkyl group being straight or branched chain and having 1 to 30 carbon atoms;
each R3 and R4 is independently H or an alkyl or substituted alkyl group, each alkyl group being straight or branched chain and having 1 to 30 carbon atoms;
each of a, b, c and e is independently 0, 1, 2 or 3, with the proviso that a+b+c+e is at least 1; and
d is 1, 2, or 3;
with the further proviso that when A is phenyl, X is SO.sub.3 M, d is 1 and any one of a, c, or e is 1, the sum of a+b+c+e is at least 2; and wherein there is a substantial absence of a compound containing one or more --SO.sub.2.sup.- groups in the composition.
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Bagchi Pranab
Connelly Richard W.
Ross Robert J.
Anderson Andrew J.
Baxter Janet C.
Eastman Kodak Company
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