| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7f9af914ed2fb00cd4f1b8b1a28964e4 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2800-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M171-001
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-44 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10N60-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10N20-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10N70-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10N40-14 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M157-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M151-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M161-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M171-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J13-00 |
| filingDate |
1990-07-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d665431f3ddfd5646d3b751aa4cabaeb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_12b105cece9effdbbb00950321aac74a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3b72930202fb2381f25d87365de425ea |
| publicationDate |
1992-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H04100895-A |
| titleOfInvention |
Electroviscous fluid composition |
| abstract |
PURPOSE:To prepare an electroviscous fluid compsn, which generates a high shearing force when a relatively weak electric field is applied, gives a low electric current density under such a condition and is improved in the long-term stabilities of shearing stress and current density. CONSTITUTION:A crosslinked polymer is prepd. by suspension- or emulsion- polymerizing 50.0-99.0mol% vinyl-arom. compd. (e.g. styrene), 0.1-50.0mol% polyvinyl compd. (e.g. divinylbenzene) and 50mol% or less other vinyl compd. (e.g. ethylene) at 50-100 deg.C for 2-40hr. Then, 100 pts.wt. the crosslinked polymer is sulfonated with a sulfonating agent at -20 to 250 deg.C for 0.3-100hr. in 1.000 pts.wt. or less swelling solvent and dried to prepare a sulfonated polymer. Then 100 pts.wt. thereof is sulfonated with 100 pts.wt. or more sulfonating agent at -20 to 250 deg.C for 0.3-100hr to obtain dispersed phase particles composed of a sulfonated polymer having sulfo-substd. arom. rings of which mean particle size is 0.1-100mum. Then, 100 pts.wt. dispersed phase particles are dispersed in 50-100 pts.wt. insulating dispersion medium (e.g. polydimethylsiloxane). |
| priorityDate |
1990-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |