http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2004196869-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9019c0ce5cb7b82c85e121f6cac86dce |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2201-0546 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2201-0543 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2379-08 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L79-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L79-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 |
| filingDate | 2002-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_729f4a7daf2338a1c8a3af1846f2a524 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c90ff63994175a4572bf7938fb33a22f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a68f9dc12ee6691ab190b053631d3cf5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c23ae0a0eff01db120911eb3d5537bbb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_04cf351cd233c3c9415375ad07166692 |
| publicationDate | 2004-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2004196869-A |
| titleOfInvention | Method for producing porous polyimide-based fine particles |
| abstract | The present invention provides a method for producing porous polyimide fine particles which is simple and has good reproducibility. A polyamic acid containing 0.5 to 80% by weight of an alkali metal salt with respect to the polyamic acid is 0.1 to 0.1%. the polymer solution was dissolved at a concentration of 15 wt% in a good solvent for the polyamic acid selected from an organic polar solvent, aliphatic solvents, alicyclic solvents, aromatic solvents, CS 2 and of two or more of these It is selected from a mixture, and injected into a poor solvent whose temperature is controlled at -20 ° C to 60 ° C, and the temperature of the poor solvent is controlled to have a particle size of 50 nm to 10000 nm, and the content and type of the alkali metal salt To form a porous polyamic acid fine particle having a pore diameter of 20 nm to 500 nm and a porosity of 0.1% to 30% controlled by the method described above, and then chemically or chemically imidizing the polyamic acid particle. A method for producing porous polyimide fine particles having the above-mentioned pore diameter and porosity by subjecting to thermal imidization after the formation. [Selection diagram] Fig. 1 |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2015087964-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2015087964-A1 |
| priorityDate | 2002-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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