http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0421513-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5929f2d6f4dba84be8dd3a8ba633db12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2df490b22c116321d79d7437b3baba8f |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-159 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J13-02 |
| filingDate | 1990-05-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f67e4a392de6bdc6b4fb1e38422859e9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9684c89cc62a944fde0dbf59b50f74fe http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5cbd18d32e784168478ce9e0b3159b6f |
| publicationDate | 1992-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H0421513-A |
| titleOfInvention | Silica gel bead coated with polymer composition |
| abstract | PURPOSE:To enable the control of the dissipation speed of a liquid included in a gel by coating a silica gel bead with a polymer composition containing a water-insoluble alginic acid salt. CONSTITUTION:A silica sol having a pH of 8.0-8.5 and produced by mixing water glass with a mineral acid is ejected from a nozzle into air and the droplets are thrown into water and washed with water to obtain spherical silica beads 1 having particle diameter of 1-5 mm. The beads 1 are immersed in an aqueous solution of a water-soluble alginic acid salt or its mixture with a water-soluble polymer (e.g. PVA) to form a coating film of the polymer composition on the surface of the bead. The coating film is cured by throwing the beads into an aqueous solution of a water-soluble alkaline-earth metal salt to obtain a bead 1 coated with a polymer composition 2 containing a water- insoluble alginic acid salt. The bead 1 is thrown into an amphiphatic liquid (e.g. methanol) and left standing for 1-48 hr to substitute the water in the bead with the amphiphatic liquid. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107552020-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9993793-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107159069-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10143632-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11096875-B2 |
| priorityDate | 1990-05-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.