http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6512138-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-327 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-327 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-08 |
| filingDate | 2000-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2003-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_39859142edfd11f464c8b63020dfd405 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_68fe0de2a4bdef37178adcf2ed075258 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_c2ea297e58cf9037b37412bf6c22d677 |
| publicationDate | 2003-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-6512138-B1 |
| titleOfInvention | Preparation of (meth)acrylates |
| abstract | The process for the esterification of (meth)acrylic acid with an alkanol in the presence of an esterification catalyst, in which unconverted starting compounds and the (meth)acrylate to be formed are separated off by distillation and an oxyester-containing bottom product is formed and is separated off, and(a) in the bottom product separated off, the oxyesters present are cleaved, if required after the addition of (meth)acrylic acid and/or oligomeric (meth)acrylic acid, directly in the presence of acid catalysts differing from (meth)acrylic acid and/or oligomeric (meth)acrylic acid, and the cleavage products are removed, a cleavage residue remaining, or(b) the oxyesters are first removed by distillation from the cleavage product separated off, a distillation residue remaining, and the oxyesters removed are cleaved, if required after addition of (meth)acrylic acid and/or oligomeric (meth)acrylic acid, in the presence of acid catalysts differing from (meth)acrylic acid and/or oligomeric (meth)acrylic acid, and the cleavage products are removed, a cleavage residue remaining,is carried out in such a way that the cleavage residue obtained in step (a) or the cleavage residue obtained in step (b) is hydrolytically cleaved together with the resulting distillation residue in the presence of water and acids or bases. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113462016-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6900346-B2 |
| priorityDate | 1999-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 76.