http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0083056-A3
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B11-193 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B11-193 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-42 |
| filingDate | 1982-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1984-10-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0083056-A3 |
| titleOfInvention | Hydroxyalkyl celluloses with stability against degradation, process for their preparation and their use |
| abstract | A method for producing is describednHydroxyalkyl celluloses with improved degradation stability in aqueousnSolutions. In a manner known per se, anSubjected to the cellulose starting material of the hydroxyalkylation,nin particular by reacting the cellulose with alkylene oxides,nfor example ethylene oxide, advantageously in the presence ofnbasic compounds such as alkali hydroxide. According to the inventionnthe reaction mixture 0.005 to 0.8 mol of methyl chloride and / ornMonochloroacetic acid added. The preferred, after thisnProcess obtained hydroxyalkyl cellulose ethers havenfollowing degrees of substitution (MS): hydroxyalkyl-MS in the range ofn1.5 to 4.0, carboxymethyl-MS and / or methoxyl-MS in the range ofn0.003 to 0.7, preferably 0.02 to 0.2. The so stabilizednHydroxyalkyl celluloses can be of advantage in technical applicationsnare used and serve, for example, as auxiliary substances in thenOil production. |
| priorityDate | 1981-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.