| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_20688220cab72ad01902ff5223732946 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C7-413
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C5-266 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C215-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C7-407
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C7-413
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C5-26 |
| filingDate |
2001-05-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b861e54fca6f3064a6d8e4a8f7b9468a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c8f63a4279f6fe98ebc062d19bb062e6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_443b5c48d0032d71a520cdf49ea360a2 |
| publicationDate |
2002-01-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2002023328-A |
| titleOfInvention |
Concentrate comprising a p-phenylenediamine derivative |
| abstract |
PROBLEM TO BE SOLVED: To provide a stable alkaline p-phenylenediamine derivative which can be used universally for producing various color developer formulations. SOLUTION: a) having a pH higher than 12.5; b) containing 0.4 to 1.1 mol / l of a p-phenylenediamine derivative; c) oxidation of 0.05 to 2 mol / l. D) contains at most 35% by weight of organic solvent with respect to the total solution, e) contains at most 50 mmol / l of sulfate ions and f) is single-phase p-phenylenediamine Concentrated aqueous solutions of the derivatives are suitable for the production of various color developer formulations. |
| priorityDate |
2000-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |