| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d9cb217f83556ce2a418344c2d485415 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2201-0544
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2379-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2201-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2205-044 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1085
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1007
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1032
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1067
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J7-123
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-28 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 |
| filingDate |
2017-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_05c495ca78e1776ab7a410428923d4f9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d1a9f6c81fd8d904da2396eb8dc6dda5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_65b55a10a511bea470ba0ac7a32faa53
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e85a15858ca83ec4b5d496f7dc5f137 |
| publicationDate |
2018-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2018021356-A1 |
| titleOfInvention |
Porous polyimide film production method and porous polyimide film produced using said method |
| abstract |
The present invention pertains to a porous polyimide film production method and a porous polyimide film produced using said method, said method including: a step (1) in which a polyamic acid solution comprising 40%-97% by mass organic polar solvent and 3%-60% by mass polyamic acid having an intrinsic viscosity, comprising tetracarboxylic acid units and diamine units, of 1.0-3.0 is cast in film form and immersed in or caused to come in contact with a coagulating solvent having water as an essential component thereof, and a porous film of polyamic acid is produced; and a step (2) in which the porous film of polyamic acid obtained in said step is heat treated and imidized. Shrinkage in the film longitudinal direction and transverse direction after heat treatment is suppressed to no more than 8% for each direction and the speed of temperature increase in a temperature range of at least 200°C during the heat treatment is at least 25°C/min. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114316348-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-7314524-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-7326785-B2 |
| priorityDate |
2016-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |