http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9215921-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5d9f3ca41550d315642580237250c5b0 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S430-136 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-74 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B05C9-14 |
| filingDate | 1992-02-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f8060aaae58ca1e2cf465181c037bb6f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5c6f63bbb16cf01afd1477d54a3b81a1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_01ed39ad34cacb25ee77961d817933f1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5e0894d058db513ebe29e52ef87535fa http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f98f324a415e8a7f1456e12deec28ebd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c910f0e03581bc90285ffcd26e150dc4 |
| publicationDate | 1992-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-9215921-A1 |
| titleOfInvention | Method of and apparatus for manufacturing photographic material |
| abstract | Photographic materials, such as films and papers, include a support and coatings on the support. The coatings often contain hardeners which cause gelation cross-links in the binder in the coating. The extent to which the cross-links have formed at the time of processing of the film or paper affects the appearance of the image produced by processing. Conventionally the cross-links have been allowed to form with time in normal atmospheric conditions. According to the invention, the formation of the cross-links is accelerated to substantial completion by a process including incubating the material at a temperature above the glass transition temperature of the coating and below the melting point of the coating in an atmosphere having a relative humidity which causes a moisture content of the coating of 0.1 to 0.25 for a period of time sufficient to substantially complete the hardening, that is, the formation of the cross-links. Such period of time is less than ten minutes. After the incubation step, the temperature of the coating is reduced below its glass transition temperature, the moisture content is reduced and the coating is then cooled prior to windup of the support with the coating thereon. The incubation and related steps of the invention may be performed after the coating and drying of the material and prior to windup into a roll or they may be performed in a rewind situation. The roll is subsequently unwound, operated upon in accordance with the invention and then rewound into a roll. Apparatus for performing the invention is also disclosed. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5368894-A |
| priorityDate | 1991-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.