http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-544064-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5d9f3ca41550d315642580237250c5b0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C7-3882 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C7-388 |
| filingDate | 1940-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1942-03-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-544064-A |
| titleOfInvention | Improvements in photographic elements and methods of producing the same |
| abstract | 544,064. Colour photography. KODAK, Ltd. (Eastman Kodak Co.). June 24, 1940, No. 15161/39. [Class 98 (ii)] A dye or dye-forming substance such as a colour development coupler incorporated in an alkaline photographic layer having a watersoluble binder such as gelatine is rendered less liable to diffuse by coating the layer from an aqueous solution of the binder containing the dye or dye-forming substance and also containing polyvinyl phthalate or cellulose acetate phthalate substantially homogeneously distributed throughout the layer. The dye may be a sensitizing filter, or anti-halation dye. The process is particularly applicable to multilayer or mixed-grain material with or without an intermediate or overcoating layer containing filter dyes. In an example the sodium salt of p-phenylbenzoylacetonitrile and polyvinyl phthalate are incorporated in an alkaline gelatine silver bromide emulsion. The gelatine is hardened with formaldehyde. A second emulsion layer is coated on the first layer, and on processing with p-aminodiethylaniline the magenta dye is mainly generated in the lower layer. Specification 542,507 is referred to. |
| priorityDate | 1940-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.