http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104558205-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B11-12 |
| filingDate | 2014-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104558205-B |
| titleOfInvention | A kind of preparation method of low-viscosity sodium carboxymethyl cellulose |
| abstract | The present invention relates to a kind of preparation method of low-viscosity sodium carboxymethyl cellulose, belong to technical field of polymer chemistry.Methods described is with inexpensive wood pulp cellulose as raw material, alkalization is mixed by the mixed solution with sodium hydrate aqueous solution and ethanol, it is 6.5~8.0 with chloroacetic ethanol solution etherificate, the oxidizing viscosity reduction with ethanol dilution, with acid for adjusting pH value, again with three washings of ethanol water, centrifugation, prepared low-viscosity sodium carboxymethyl cellulose is finally dried.Methods described is simple; without pretreatment of raw material process; it is easy to operate, process stabilizing, low production cost, it is easy to large-scale production; obtained sodium carboxymethylcellulose is white or micro-yellow powder; uniformity is good, and viscosity is low, is 10~60mPas; purity is high, with dissolution velocity it is fast, good dispersion, transparency are good the characteristics of. |
| priorityDate | 2014-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.