http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109825105-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B67-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B29-20 |
| filingDate | 2019-03-27^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-11-10^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-11-10^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109825105-B |
| titleOfInvention | Method for preparing nano-scale pigment red 146 by inverse miniemulsion method |
| abstract | The invention discloses a method for preparing nano-scale pigment red 146 by using an inverse miniemulsion method. The solution obtained by diazotization reaction is used as a water phase, cyclohexane is used as an oil phase, and the water phase and the oil phase are uniformly mixed by adding a surfactant and a co-stabilizer to obtain the water-in-oil inverse miniemulsion. And adding dispersion liquid of the naphthol AS-LC and cyclohexane into the miniemulsion within 30-60 minutes, reacting for 2-6 hours, and finally centrifuging, washing with ethanol and drying to obtain a nano pigment red 146 product. The average particle size of the obtained product is 150-200nm, the particle size distribution is narrow, and the requirements of the industry standard on pigment particles in the preparation of ink-jet printing ink are met. The method has the advantages of mild conditions, few process steps, simple operation, few additives, easy realization of industrialization and good economic and social benefits. |
| priorityDate | 2019-03-27^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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