| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b55c349b43c3ecba4977fd52cc8f8c67 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K2203-0773
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K2203-0156
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K2203-0759
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K1-024
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2201-0502
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K2201-0355
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K2201-0116
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K2201-0154
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2379-08 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K1-0346 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H05K1-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-64 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H05K1-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-26 |
| filingDate |
2002-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2012-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d7801423940cabae20bd01d28b9d371c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8b3918f99d03e500a974b0e7ee3a1987
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a9528b65cc67f8b7af71f6c17a3ae81b |
| publicationDate |
2012-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1471103-B1 |
| titleOfInvention |
Process for producing porous polyimide resin and porous polyimide resin |
| abstract |
A process for porous polyimide resin production in which pores can be formed while wholly maintaining the configuration of a finely phase-separated structure comprising a polyimide resin precursor and a dispersible compound dispersed therein and which can attain a sufficiently reduced permittivity and yield a porous polyimide resin excellent in mechanical strength and heat resistance; and a porous polyimide resin obtained by the process. A resin solution containing a polyimide resin precursor and a dispersible compound is applied and dried to remove the solvent to thereby form a film in which the dispersible compound has been dispersed in the polyimide resin precursor. Subsequently, the dispersible compound is removed by extraction to make the film porous. This film is preheated at 190 to 250°C and then imidized. Thus, a coating film comprising a porous polyimide resin is formed. |
| priorityDate |
2001-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |