http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2019163993-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2002-70 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-51 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-30 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B82Y40-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-142 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-1435 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-145 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-142 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B82Y40-00 |
| filingDate | 2019-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-WO2019163993-A1 |
| titleOfInvention | Method for producing silica sol having an elongated particle shape |
| abstract | By adding a compound as an anion source and ammonia as an alkali source to an active silicic acid aqueous solution and heating at a predetermined temperature, a method for producing a silica sol in which elongated particle-shaped colloidal silica particles with few metal impurities are dispersed in a solvent is provided. .. (A) Step: In a colloidal aqueous solution of active silicic acid having a SiO2 concentration of 1 to 6% by mass and a pH of 2 to 5, an amount of inorganic particles having a mass ratio of 3.0 to 7.0 with respect to SiO2. A step of preparing a raw material liquid containing at least one anion source compound selected from the group consisting of an acid, an organic acid, and an ammonium salt thereof, and ammonia, a step (b): (a). The average particle size (DLnm) by the dynamic light scattering method and the primary particles by the nitrogen gas adsorption method, which include a step of producing a silica sol by heating the raw material solution obtained in the above method at 80 to 200 ° C. for 0.5 to 20 hours. A method for producing a silica sol having a DL / DB ratio of 2.5 or more with a diameter (DB nm). |
| priorityDate | 2018-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 88.