http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1528951-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_01dc8a8a3ae90ebd3658b65c494e2a4d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C5-3056 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C323-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C323-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C5-305 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C5-29 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C391-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C323-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C325-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C313-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C323-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C7-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C323-62 |
| filingDate | 1975-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1978-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1528951-A |
| titleOfInvention | Development of photographic silver halide material |
| abstract | 1528951 Polyether derivatives AGFA GEVAERT 12 Jan 1976 [22 Jan 1975] 2866/75 Heading C2C [Also in Divisions G2 and C3] Compounds of the formula wherein R 1 is hydrogen, C 1-5 alkyl or the group X-A-Y-R 2 , n is an integer of value at least 4, or if R 1 is X-A-Y-R 2 and X is a monovalent chemical bond, is at least 2, X is CO, SO 2 , CONH or when R 1 is X-A-Y-R 2 , may be a monovalent chemical bond, A is alkylene, substituted alkylene or arylene, Y is sulphur or selenium atom and R 2 is alkyl or substituted alkyl are prepared for use as additives to photographic developers. In examples, polyethylene glycol derivatives are obtained by reacting (1) polyethylene glycol (MW 200) and p-methylselenobenzoyl chloride; (2) polyethylene glycol (MW 200) and p-methylthiobenzoyl chloride; and (3) the bis-toluene sulphonic acid ester of polyethylene glycol (MW 200) and mercaptoethanol. |
| priorityDate | 1975-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.