http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3764335-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/B41M5-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03F7-0085 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-695 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-695 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-73 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-725 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03F7-008 |
| filingDate | 1971-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1973-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_50a7ca74f6a4a98fd343a7ea453bd4bc |
| publicationDate | 1973-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-3764335-A |
| titleOfInvention | Image forming compositions including an azide and transition metal complexes of triorganophosphines |
| abstract | PHOTOGRAPHIC IMAGE-FORMING COMPOSITIONS THAT INCLUDE (1) AN ORGANOAZIDE SUCH AS AN ARYL AZIDE AND (2) A LABILE PHOSPHINE COMPLEX THAT, ON CHEMICAL TREATMENT, CAN LIBERATE A TRIORGANOPHOSPHINE, E.G. A TRIARYLPHOSPHINE, WHICH CAN FORM A RADIATION-SENSITIVE COMPLEX WITH THE AZIDE, CAN BE ACTIVATED BY CHEMICAL TREATMENT AND THEREAFTER IMAGEWISE EXPOSED TO ACTIVATING RAYS TO YIELD A SPECIES THAT CAN REACT WITH A DYE-FORMING COUPLER TO FORM AN IMAGE-DYE. THESE COMPOSITIONS ARE SUBSTANTIALLY LIGHT-SENSITIVE PRIOR TO CHEMICAL TREATMENT WHICH ACTIVATES THE COMPOSITION BY LIBERATING TRIORGANOPHOSPHINE, WHEREUPON THE PHOSPHINE-AZIDE COMPLEX IS FORMED IN SITU, AND SHELF LIFE IS DESIRABLY EXTENDED. WHEN THESE COMPOSITIONS ARE CARRIED ON A SUPPORT, IMAGE-FORMING ELEMENTS ARE PRESENTED. ONCE THE AZIDE-PHOSPHINE COMPLEX IS PRESENT IN AN ACTIVATED COMPOSITION, IMAGEWISE EXPOSURE TO ACTIVATING RAYS AND SUBSEQUENT OR CONCOMITANT TREATMENT WITH A DYEFORMING COUPLER OR THE LIKE PRODUCES A NEGATIVE IMAGE (I.E., ONE CORRESPONDING TO EXPOSED REGIONS). IF A LEUCO COMPOUND, DYE FORMING COUPLER, ETC., IS ALSO INCLUDED IN THE COMPOSITION, THEN A VISIBLE IMAGE GENERALLY FORMS ON EXPOSURE. AFTER PRODUCTION OF THE IMAGE, IT CAN BE STABILIZED BY OVERALL HEATING. IN CERTAIN CASES, HEAT FIXATION ALSO PRODUCES INTENSIFICATION OF A LOW DENSITY OR SUBSTANTIALLY LATENT IMAGE. IF DESIRED, POSITIVE IMAGES CAN BE FORMED BY THERMOPHOTOGRAPHIC MEANS. ONCE THE PHOSPHINE-AZIDE COMPLEX IS FORMED, IMAGEWISE EXPOSURE TO HEAT DENSITIZES THE COMPLEX IN HEATED REGIONS AND A SUBSEQUENT OVERALL EXPOSURE TO ACTIVATING RAYS PRODUCES EITHER A VISIBLE OR AN INTENSIFIABLE PHOTOGRAPHIC IMAGE. NO HEAT FIXATION IS REQUIRED, BUT IMAGE INTENSIFICATION BY HEAT MAY BE ACCOMPLISHED IF DESIRED. MULTI-COLOR IMAGES CAN BE PREPARED WHEN AN INCLUDED COUPLER IS OF THE TYPE THAT WILL REACT WITH THE AZIDE WHEN SUITABLY EXPOSED. LITHOGRAPHIC PRINTING SURFACES CAN BE PREPARED WHEN A HYDROPHILIC, POLYMERIC AZIDE IS USED TO FORM THE COMPLEX OR WHEN HYDROPHILIC POLYMERIC COUPLERS ARE USED TO FORM THE IMAGE DYE. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005284908-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2547109-C2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3856531-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4622284-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3912844-A |
| priorityDate | 1971-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 135.