http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5164495-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4629bd6f07bc58aa772a1f6fe6ba784b |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2371-12 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-2293 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25B13-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-22 |
| filingDate | 1975-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dc9f2ec7d10322f60452c1f641c2ac96 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_270ee985b0019b17c757e411302b1b19 |
| publicationDate | 1976-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S5164495-A |
| abstract | 1485708 Cation exchange membranes DIAMOND SHAMROCK CORP 15 Oct 1975 [16 Oct 1974] 42310/75 Heading C3P [Also in Divisions B5 and C7] Cation exchange membranes for use in an electrolytic cell are obtained by surface treatment of a membrane comprising a fluorine-containing polymer having pendant sulphonyl groups with an ethylene diamine to convert the sulphonyl groups to a depth of 5-75 microns to the form on one side only, the remaining sulphonyl groups being converted to -SO 3 R where R is H, Na or K and R<SP>1</SP> is R or -SO 2 -. The membrane is preferably formed from a copolymer of tetrafluoroethylene and CF 2 = CFYfSO 2 F where Yf is a bivalent C 2 -C 8 perfluorinated radical. After treatment on one side with ethylene diamine, the membrane is further treated with alkali metal hydroxide to hydrolyse other -SO 2 F groups to -SO 3 R. The membrane is used in the electrolysis of brine with the treated surface facing the cathode. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2000188013-A |
| priorityDate | 1974-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.