http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H04187682-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_696ca0ae93d5cf5a686273601361781f |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-06 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D303-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D301-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D303-16 |
| filingDate | 1990-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_29eb77ccee3cabf973dede659f4fcebe http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c8372f39167688393c8bf0263fc59828 |
| publicationDate | 1992-07-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H04187682-A |
| titleOfInvention | Purification of glycidyl acrylate or glycidyl methacrylate |
| abstract | PURPOSE: To efficiently remove non-reacted epichlorohydrin and by-produced chlorine compounds without lowering the recovery rate of the purified products, by subjecting crude glycidyl (meth)acrylate to a stripping treatment under a specific condition and subsequently distilling the treated product. n CONSTITUTION: Crude glycidyl (meth)acrylate containing non-reacted epichlorohydrin and by-produced chlorine compounds is bubbled with mixed gases comprising oxygen gas and an inert gas (preferably nitrogen gas) in the presence of a quaternary ammonium salt (preferably tetraethyl ammonium chloride) to strip the epichlorohydrin and the by-produced chlorine compounds, followed by distilling the treated product to provide the objective purified product. The stripping treatment is preferably carried out under a reduced pressure of 2-50mmHg at a temperature which is lower than the boiling point of the solution containing the crude glycidyl (meth)acrylate, etc., and which is higher than the boiling point of the epichlorohydrin. n COPYRIGHT: (C)1992,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0761660-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5380884-A |
| priorityDate | 1990-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.