| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c85d78c6a4459b5dbbc49c82a4c5c107
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_62f941494409aea84f621977c5f0ab81 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2323-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2323-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2256-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2256-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2323-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2257-702
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2256-245 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1075
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-021
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0067
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-141
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1042
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-228
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-101 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-22 |
| filingDate |
2019-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_28dfe7e3823ce656f3ce7b79a65d3d0c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cda7a47ade66d08f4713dea42e6a2b76
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f4ca0f314101667295af68958d8c0c98
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_83ff6f5752a2fea5a6d5d10ba4fe5f50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_822be7f063a520e92093e3a191e27755 |
| publicationDate |
2021-10-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2021324142-A1 |
| titleOfInvention |
Cross-linked polyimide membranes and carbon molecular sieve hollow fiber membranes made therefrom |
| abstract |
A cross-linked polyimide of the reaction product of a crosslinking agent and a polyimide. The cross-linking agent having at least two cross-linking moieties and the polyimide has a plurality of polyimide chains having an aryl constituent with a moiety comprised of a reactive substituent. The polyimide has crosslinks from the reaction of the reactive substituent of the aryl constituents of the polyimide chains and the cross-linking moieties of the cross-linking agent. The cross-linking may be induced by thermally treating a mixture of the polyimide and crosslinking agent above about 150° C. to a temperature where the polyimide begins to decompose under an inert atmosphere. The membrane can be used for separations involving gases such as hydrogen and light hydrocarbons. |
| priorityDate |
2018-08-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |