| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P70-50 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M8-1081
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-2218
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M8-1027
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M8-103
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M8-1048
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M8-1032
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M8-0289 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M8-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L79-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M8-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J7-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M2-16 |
| filingDate |
1997-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_922efd65c2600f2f71c60aecf01c91af
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0836ece467b82b0b0de3ca19e50263e6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8e8c676e5f5b058b195ed8af25d1b7ae
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_73d57878e6ce2033b5ca3510486db3d6 |
| publicationDate |
1999-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0954544-A1 |
| titleOfInvention |
Process for producing polymeric films for use as fuel cells |
| abstract |
A method for producing polymeric, e.g., polybenzimidazole (PBI) films, is provided by forming a porous membrane by coagulating a polymeric dope solution in a liquid coagulation bath containing a non-solvent alone or a mixture of a non-solvent and solvent; submerging the resulting membrane into a non-solvent bath to remove any residual solvent; placing the membrane into an acid solution, whereby the pores become filled with the acid solution; and drying the membrane to remove residual non-solvent which collapses the porous structure entrapping the acid and forming a dense film. An alternative method involves coagulating said polymer solution directly into an acid/solvent/non-solvent mixture to produce a porous membrane which imbibes the acid solution, followed by drying. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2012025380-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102010039900-A1 |
| priorityDate |
1996-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |