| Predicate |
Object |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-57 |
| filingDate |
2002-07-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_54fe84c118d2dccffa65db1499f5495d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eeac047f832c3fb5d52dc71160febbe7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_54251e14d180e378c5df9a302c81af42 |
| publicationDate |
2004-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2004242929-A1 |
| titleOfInvention |
Process for production of acid anhydride |
| abstract |
According to the present invention there is provided a process for producing an acid anhydride by reacting a carboxylic acid, preferably a carboxylic acid having a polymerizable group, with a sulfonyl halide compound in the presence of a tertiary amine or in the presence of a tertiary amine and an inorganic base, wherein the tertiary amine or the tertiary amine and the inorganic base are used in an amount of 0.9 to 1.2 equivalents relative to the acid generated from the sulfonyl halide compound. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9695196-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2015196077-A1 |
| priorityDate |
2001-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |