G - Physics – 03 – C
Patent
G - Physics
03
C
96/100
G03C 1/04 (2006.01) G03C 7/327 (2006.01) G03C 7/388 (2006.01)
Patent
CA 1310850
Silver Halide Photographic Element, Photographic Coating Composition And Process To Prepare An Aqueous Dispersion Of A Hydrophobic Compound ABSTRACT OF DISCLOSURE A polymeric latex to load photographically useful compounds into photographic elements comprises, as a dis- persed phase, fine particles of a hydrophobic polymer which, for at least 70% of its weight, comprises: (a) repeating units derived from an ethylenic monomer con- taining a sulfonic or sulfonate group which monomer is capable of forming hydrophilic homopolymers, said units comprising 0.5 to 1.5% by weight of said hydro- phobic polymer, (b) repeating units derived from an N-3-oxo-alkyl-substi- tuted acrylamide, said units comprising from 5 to 25% by weight of said hydrophobic polymer, and (c) repeating units derived from acrylic acid ester mono- mers having a TG lower than 0°C, said units comprising at least 43.5% by weight of said hydrophobic polymer, the remaining polymer weight percentage, from zero to 30%, being formed by repeating units derived from inert mono- mers and/or cross-linking monomers. Such polymeric latex can be loaded with hydrophobic compounds to obtain stable coating compositions which are suitable for a uniform dispersion in a hydrophilic layer of a photographic material.
525819
Besio Mauro
Vallarino Angelo
Vittore Lorenzo
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
Silver halide photographic element, photographic coating... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Silver halide photographic element, photographic coating..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Silver halide photographic element, photographic coating... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1304397