| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-58
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-58 |
| filingDate |
1997-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2001-09-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_df793075a652f102e5fb197b2f90fbd3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_35df966ab44e84790f550afe30679ebc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1dd4b611969347e6ee9610ab384700fc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_68fe0de2a4bdef37178adcf2ed075258 |
| publicationDate |
2001-09-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0944573-B1 |
| titleOfInvention |
Method for the production of (meth)acrylic acid esters |
| abstract |
The invention relates to a method for producing (meth)acrylic acid esters by reacting (meth)acrylic acid with C4-C12-alkanols in the presence of sulfuric acid or of a sulfuric acid mono-C4-C12-alkyl ester as a catalyst, wherein the catalyst is regenerated by extraction with water from the reaction mixture and the aqueous catalyst solution is reintroduced into the esterification. The concentration of non-reacted alkanol in the reaction mixture that is to be extracted amounts to a maximum of 5 wt.% in relation to said reaction mixture. |
| priorityDate |
1996-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |