http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0028697-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_06376d805362e4d41dbab4185be9d886 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-76 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-76 |
| filingDate | 1980-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_81a32ed5e9982caf5dafdd32b6fb2547 |
| publicationDate | 1981-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0028697-A1 |
| titleOfInvention | Aliphatic ester solvent in esterification of carboxybenzenes |
| abstract | An anhydride of a carboxybenzene is esterified in solution by a fluorinated alcohol, using an aliphatic ester having a boiling point between about 50°C and about 150°C as solvent. In particular, pyromellitic dianhydride is esterified in an ester such as ehtyl acetate or butyl acetate to the diester / diacid by reaction with 2-(n-perfluoroalkyl)ethanols having six to twelve carbon atoms in the perfluoroalkyl groups, and the reaction mixture containing the dissolved diester'diacid is admixed with an oxirane compound of the group ethylene oxide, epichlorohydrin and glycidol whereby the carboxyl groups are esterified in the solvent by reaction with oxirane groups. The product is recovered by evaporating off the solvent and unreacted oxirane compound. The product imparts oil and / or water repellency to textiles. |
| priorityDate | 1979-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 130.