http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-873937-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_315d611c240458b1308de8455144105a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-48523 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-485 |
| filingDate | 1958-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_923bf6b5f705525fa33090d48afdec86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6cce5504c82f5225df5bb952a0e73d4d |
| publicationDate | 1961-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-873937-A |
| titleOfInvention | Improvements in or relating to direct positive emulsions |
| abstract | Quaternary salt of the general formula:-<FORM:0873937/IV (b)/1> wherein R is an alkyl, allyl or halogen-substituted or unsubstituted aralkyl group and X is an anion, the quaternized pyridinium ring being joined to the vinyl group in 2- or 4-position, are prepared by reacting the corresponding bases with salts of the formula RX. Examples are given of the reaction of 1:2-dipyridylethylenes with benzyl chloride, benzyl bromide, p-chlorobenzyl chloride, methyl iodide, ethyl iodide, allyl bromide or ethyl toluene p-sulphonate. Specifications 843,363, 850,482 and 871,938 are referred to. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3314796-A |
| priorityDate | 1958-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.