http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-7156580-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K1-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B15-088 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B15-088 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B15-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H05K1-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B27-34 |
| filingDate | 2022-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-7156580-B1 |
| titleOfInvention | Method for producing polyimide resin powder |
| abstract | A method for producing a polyimide resin powder, in which a tetracarboxylic acid component (A) containing a tetracarboxylic dianhydride and a diamine component (B) containing an aliphatic diamine are represented by the formula (1). Including the step of reacting in the presence of a solvent (C) containing an alkylene glycol-based solvent, The step includes a solution (a) containing the tetracarboxylic acid component (A) in the solvent (C) and a solution (a) containing the diamine component (B) in the solvent (C). After preparing b) separately, add solution (b) to solution (a) or add solution (a) to solution (b) to contain a polyimide resin precursor containing polyamic acid A solution (c) is prepared, and then the polyimide resin precursor containing the polyamic acid is imidized by heating the solution (c), and a polyimide resin powder is precipitated in the solution. The solid content concentration of the solution (c) is 15 to 25% by mass, and the average temperature increase rate in the temperature range of 70 to 130° C. during the heating of the solution (c) is 0.5 to 8° C./min. A method for producing a polyimide resin powder. (Ra 1 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, Ra 2 is a linear alkylene group having 2 to 6 carbon atoms, and n is an integer of 1 to 3.) |
| priorityDate | 2021-03-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 279.