http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-T889006-I4
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-695 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-695 |
| filingDate | 1970-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1971-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1971-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-T889006-I4 |
| titleOfInvention | Defensive publication |
| abstract | STABLE PHOTOGRAPHIC IMAGES ARE FORMED BY A DRY PRINTOUT PROCESS WHICH EMPLOYS A PHOTOGRAPHIC ELEMENT COMPRISING A LIGHT SENSITIVE COMPOUND, E.G. AN AROMATIC AZIDE, AND A DYE FORMING COUPLER, PREFERABLY A PHENOLIC COMPOUND OF THE TYPE WHICH WILL FORM AN AZOMETHINE DYE. THE AZIDE AND THE COUPLER ARE PREFERABLY COATED ON A SUPPORT SUCH AS PAPER AND ISOLATED FROM EACH OTHER. THE ELEMENT IS EXPOSED IMAGE-WISE TO VISIBLE LIGHT AT AMBIENT TEMPERATURE WHEREBY THE PHOTOSENSITIVE COMPONENT DECOMPOSES TO A COLORED PHOTOPRODUCT IN THE LIGHT STRUCK AREAS. THE ELEMENT IS THEN HEATED TO PERMIT INTIMATE PHYSICAL MIXING OR COSOLUTION OF THE LIGHT SENSITIVE AND COUPLER COMPONENTS AND THEN FLASH EXPOSED AT A DIFFERENT TEMPERATURE TO YIELD STABLE PRINTOUT IMAGES DIRECTLY WITHOUT ADDITIONAL PROCESSING OR FIXING STEPS. THE SYSTEM MAY BE MADE EITHER POSITIVE OR NEGATIVE WORKING BY REVERSING THE TEMPERATURES AT WHICH THE EXPOSURES ARE MADE. SUITABLE AZIDES INCLUDE 3-METHYL-4-AZIDO-N-ETHYL-NDODECYLANILINE AND N-(4-AZIDOPHENYL) MORPHOLINE; AND SUITABLE COUPLERS INCLUDE 2,4-DICHLORO - 3 METHYL-6-STEARAMIDOPHENOL AND 2-(A-(2,4-DI - TERT - AMYLPHENOXY) ACETAMIDO)-4.6-DICHLORO-5-METHYLPHENOL. THE AZIDE AND THE COUPLER ARE PREFERABLY COATED IN SEPARATE LAYERS ON THE SUPPORT AND ARE NON-MIGRATING AT NORMAL TEMPERATURE BUT WHEN HEATED THEY MIX AND UPON LIGHT EXPOSURE FORM A DYE. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0779536-A1 |
| priorityDate | 1970-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.