http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0460714-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K49-1842 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K49-1818 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K49-1806 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G51-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G53-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-37 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K49-18 |
| filingDate | 1987-06-11^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7f9cb6e15317f72d93ba9605f3c4dd6e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3f4764b4ab8d2ba456e62de9fa777b32 |
| publicationDate | 1991-12-11^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0460714-A2 |
| titleOfInvention | Preparation process for polar and apolar superparamagnetic fluids |
| abstract | Polar and non-polar superparamagnetic liquids, which contain surfactant-coated superparamagnetic solid particles dispersed colloidally in polar or nonpolar liquid media, are produced with the help of new processes for the production of polar and nonpolar superparamagnetic liquids. The new process for producing non-polar superparamagnetic liquids from superparamagnetic solid particles is based on the precipitation of the particles from aqueous metal salt solutions which correspond to the chemical composition of the particles by means of a base, coating the particles with an anionic surfactant and converting the particles into a nonpolar liquid, wherein a) the coated particles in the aqueous medium are flocculated with methanol, separated and redispersed in a non-polar liquid and / or b) the coated particles which have already been dispersed in any manner in a non-polar liquid medium are flocculated with methanol, separated and in a non-polar Liquid redispersed. The new process for the production of polar superparamagnetic liquids from superparamagnetic solid particles also starts from the precipitation of the particles from aqueous metal salt solutions, which correspond to the chemical composition of the particles, by means of a base, but then the particles are coated with an acidic phosphoric acid ester and transferred Particles from the aqueous medium into a polar liquid which has a higher boiling point than water, a ') converting the coated superparamagnetic solid particles into a polar liquid 1 boiling between 110 and 250 ° C. and b') the resulting dispersion after distilling off the Water mixed with a polar liquid 2, which boils higher than the liquid 1, after which the liquid 1 is removed from the dispersion. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7726008-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2612683-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0977212-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0977212-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6262129-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7399523-B2 |
| priorityDate | 1986-06-12^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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