| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0f705f295f4ba571f5311e5ef1b57807
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a0e63b6f7736b4811694f54898f9a029 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2205-02 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-228
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1039
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0083
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L79-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L79-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-74 |
| filingDate |
2011-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b3a23a5383593760fea2416fd35c2bfe
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_14553856bd75352ce6c4ee944415ffec |
| publicationDate |
2012-11-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2012210607-A |
| titleOfInvention |
Polyimide asymmetric hollow fiber membrane |
| abstract |
To provide a polyimide asymmetric hollow fiber membrane having excellent gas permeability and particularly excellent separation between carbon dioxide (CO 2 ) and methane (CH 4 ). SOLUTION: Using a mixed solution of a linear polyamic acid and a multi-branched polyamic acid, a hollow fiber-like structure is produced with a hollow fiber spinning device, and the hollow fiber-like structure is subjected to a heat treatment to produce a linear chain. The desired polyimide asymmetric hollow fiber membrane was obtained by imidizing the polyamic acid and the hyperbranched polyamic acid. [Selection] Figure 1 |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101562307-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2016002990-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101474545-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107778484-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107778484-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2015167071-A1 |
| priorityDate |
2011-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |