http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1399485-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f4a7711656877c108fcffc1b2b52cfc4 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-2866 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B11-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B13-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B13-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B11-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B3-22 |
| filingDate | 2002-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4e6010c57200643a3a565921ba92d1b7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_699ff94fc0b6fd4d21efb366dd1d3002 |
| publicationDate | 2004-03-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1399485-A1 |
| titleOfInvention | Purification method of hydroxypropylmethyl cellulose phthalate |
| abstract | The present invention relates to a purification method of hydroxypropylmethyl cellulose phthalate, more particularly to a method of preparing high-purity hydroxypropylmethyl cellulose phthalate through a simple crushing process which comprises: increasing fluidity of reaction product mixture by adding fluidization solvent as a post-treatment process; and spraying it into water through a spray nozzle. As a result, formation of fine granular hydroxypropylmethyl cellulose phthalate particles prevents inter-particle coagulation during the a post-treatment process, and phthalic anhydride reactant, free phthalic acid and remaining acetic acid solvent can be removed effectively. |
| priorityDate | 2001-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.