| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_154f5a8a983d88f296117dcc92946ab4 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M2300-0082
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P70-50 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M8-1023
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M8-1072
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M8-1039
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F12-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01B1-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M8-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L51-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F12-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M8-02 |
| filingDate |
2004-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2007-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a72bf1d9ac374c69fb4785a1e1923a9c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_14cdda8532ccc885807d163be5b4ec3a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a9bae1cdbde85e6dda882495025f5c91
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_70c0a147525cfbe5794c7947e0e8d075 |
| publicationDate |
2007-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-7244791-B2 |
| titleOfInvention |
Method for preparing sulfonated polystyrene for polymer electrolyte of fuel cell |
| abstract |
A method for preparing sulfonated polystyrene, whereby a styrene monomer having a sulfonyl chloride is prepared by reacting p-styrene sulfonic acid salt with a chloride, a styrene-based polymer having the sulfonyl chloride is synthesized by the polymerization of a p-styrene sulfonyl chloride monomer and optionally at least one monomer of a styrene and an acrylic monomer, the styrene-based polymer having the sulfonyl chloride is treated with an inorganic base aqueous solution to change the sulfonyl chloride into a SO 3 M group where M is an alkali metal, and treated with an acidic aqueous solution to prepare a styrene-based polymer having a sulfonic acid group. The styrene-based polymer having the sulfonic acid group prepared according to the process of the present invention has high proton conductivity and good mechanical properties. |
| priorityDate |
2003-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |