http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3804621-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_67442786362dcafe00a16140b7456da8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03F7-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03F3-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03F3-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03F7-12 |
| filingDate | 1967-05-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1974-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7f5fd128541259938c5b7254bb1952a5 |
| publicationDate | 1974-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-3804621-A |
| titleOfInvention | Negative or positive wash-off relief systems |
| abstract | A wash-off relief system in which the residual portion of the light-sensitive gel coating exposed to a copy image may be either the light-struck (negative image) portion or the non-light-struck (positive image), at the option of the user. The coating includes a mixture of ferric double salts which, alone, normally do not insolubilize the gel coating, and ferric single salts which normally insolubilize the gel coating. To obtain a continous coating, the mixed salts are dispersed in the gel material in the presence of a volatile solubilizer (acid) sufficient to offset the insolubilizing effect of the ferric single salts, the solubilizer leaving the film coating during drying to provide a substantially insolubilized light-sensitive gel coating prior to exposure. Negative images are developed in a developer solution containing hydrogen peroxide and an acid (or a peroxide former and an acid) prior to wash-off. Positive images may be left by wash-off without use of a developer, but in some formulations, a positive developer solution containing salts of acids which solubilize the gel coating and salts of alkaline earth metals (particularly strontium and barium) may be used to aid wash-off. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4505999-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4546064-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4326020-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4590138-A |
| priorityDate | 1967-05-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 63.