http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110467681-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_424db9d56b06a23aed410fcf5df652f3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B11-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B11-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B13-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B13-00 |
| filingDate | 2019-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0a3d70e553d5a70ea3f1108f6b265bd3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3ebe5345cb4daaf6211c67421bab2630 |
| publicationDate | 2019-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110467681-A |
| titleOfInvention | Hypromellose phthalate and preparation method thereof |
| abstract | Provided is a method for producing hypromellose phthalate (HPMCP) which exhibits excellent solubility when dissolved in a solvent while suppressing the formation of insoluble matter. More specifically, a method for preparing HPMCP is provided, comprising: esterifying hypromellose dissolved in glacial acetic acid with phthalic anhydride at a temperature of 75 to 100° C. in the presence of sodium acetate, an esterification step to obtain a reaction product solution; a cooling step to cool the reaction product solution to 70° C. or lower; and a precipitation step to mix the cooled reaction product solution with water at 0 to 40° C. to obtain a precipitated HPMCP suspension . |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113143881-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113143881-B |
| priorityDate | 2018-05-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.