http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2007131566-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2317062d8827849c9320498bceb07814 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K8-35 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61Q19-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K15-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B63-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K15-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K15-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-65 |
| filingDate | 2005-11-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c1e86b5aabdf9716172de710f7b8b9c7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8a0162bbde12d216447ba8a253e96af3 |
| publicationDate | 2007-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2007131566-A |
| titleOfInvention | Method for producing antioxidant hydroquinone compound |
| abstract | 【Task】 Conventional methods for producing hydroquinone compounds have poor yields and have affected the unit price of hydroquinone products. In addition, in order to obtain a high-purity molecular complex crystal, washing with an alcohol solvent must be repeated, which generates a large amount of waste solvent and is industrially inefficient. [Solution] In order to solve the above-mentioned problems, after reacting 1.5 equivalents of hydroquinone with 1 equivalent of cetalkonium chloride to obtain primary crystals, the filtrate containing unreacted raw materials is passed through a separation membrane, whereby unreacted substances are obtained. Provided is a method for producing a hydroquinone / cetalkonium chloride complex that reuses a raw material and a recovered solvent. Thereby, the yield is improved and the amount of waste liquid can be reduced. [Selection] Figure 3 |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2019116439-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-7044354-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009269915-A |
| priorityDate | 2005-11-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.