| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_646bc8f03568158b3dc3f2d20e8dc0fc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_97d92fb4f0bace630f6fa993361ff9f1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_38a671869fe4c49ae962680e87c235a1 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C213-00 |
| filingDate |
1980-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bd056252089d6aacdd6932303b0e9933
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8e9d8b8a9f0061d007ae048da440e234
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_36a88dc584d080f9d276c9aed94f717b |
| publicationDate |
1982-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CS-211826-B1 |
| titleOfInvention |
Method for p-aminobenzoic acid esterification with methanol |
| abstract |
The present invention provides a process for esterifying an acidnp-aminobenzioic acid with methanol as catalystnsulfuric acid or its actionnorganic esters at a pressure of 0.15 to 1.5 MPa.nThe pressure method of esterification makes it possible to use itnless sulfuric acid and methanol. |
| priorityDate |
1980-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |