http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-310049-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0ff16e899ce32685c9600075c1cc21 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S430-134 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B23-148 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B23-141 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B23-105 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-053 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B23-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-8155 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-815 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-053 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B23-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B23-14 |
| filingDate | 1965-03-03^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1965-12-01^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-310049-A1 |
| titleOfInvention | PROCEDURE FOR THE PREPARATION OF AN OPTICALLY CLEARED PHOTO MATERIAL |
| abstract | Optically brightened photographic material is prepared by coating a support with a dispersion prepared by mixing a photographic colloid and an aqueous emulsion of a solution, in an organic solvent, of (i) a hydrophilic resinous polymer having a refractive index similar to that of the colloid so that the polymer and colloid together yield a homogenous, transparent dispersion and (ii), an optical brightener free from acid groups. The dispersion may include the photosensitive material sion may include the photosensitive material (e.g. a gelatino silver halide emulsion optionally comprising colour couplers or bleachable dyestuffs), or it may be used to form an auxillary layer. Specified polymers are vinylidene chloride or styrene/methacrylic or acrylic alkyl ester/methacrylic or acrylic acid copolymers. and polyvinylpyrrolidone. Specified brightening agents are benzoxazoles, benzimidazoles, pyrazolones, coumarins, naphthalic acid imides, stilbenetriazole and distyrylbenzenes. The dispersions may also comprise a dispersing agent (e.g. an alkyl sulphonate) and an alkali (e.g. NH3). |
| priorityDate | 1964-03-04^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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