http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-2754457-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-00 |
| filingDate | 1977-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2933a850857b8e6f1833d48e8f3d9815 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_918441258e8fa6e88d98314ea367e66f |
| publicationDate | 1979-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-2754457-A1 |
| titleOfInvention | Process for the preparation of perfluoroalkane sulphonic acids |
| abstract | Prodn. of perfluoroalkane sulphonic acids of formula (I) RfSO3H (Rf = perfluoroalkyl, pref. of 1-15C) comprises treating a soln. of the corresp. salt with an acid ion-exchanger (A). Pref. (A) is a styrene polymer (opt. crosslinked with divinyken = zene) contg. SO3H or PO4H2 gps. Pref. salts of (I) are with alkali (ne earth) metals or HN4 and are used as solns. in 1-5C alkanols, water or glycol ethers of formula R1O(CH2CH2O)mR2(R1 and R2 = 1-5C alkyl; m = 1-5). (I) are used to suppress spray in electroplating baths, as catalysts for esterification polymerisation etc., and as intermediates for other fluorinated surfactants. Simple and inexpensive process gives practically 100% yield of very pure (I) (esp. free of heavy metals). |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4282162-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2008000682-A1 |
| priorityDate | 1977-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.