http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112500499-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-54 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B3-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B1-003 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B3-18 |
| filingDate | 2020-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112500499-B |
| titleOfInvention | A kind of method for preparing cellulose acetate butyrate |
| abstract | The invention discloses a method for preparing cellulose acetate butyrate, which comprises the following steps: after dissolving pulverized cellulose in a solvent, alcoholysis reacts with acetonitrile and butyronitrile under the catalysis of concentrated sulfuric acid to generate cellulose acetate butyrate . In the cellulose acetate butyrate prepared by the method, the content of acetyl groups is 1-15wt%, and the content of butyryl groups is 35-53wt%. The invention adopts non-corrosive esterification agent and solvent, and the solvent NMMO aqueous solution can be recycled and reused after being concentrated, which greatly reduces the production cost and is suitable for industrial production. |
| priorityDate | 2020-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.