http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5721379-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_696ca0ae93d5cf5a686273601361781f |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D301-30 |
| filingDate | 1980-07-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_03748e67d56ff04b6defb210ac5dd356 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4e4bec262c43f88a63f68180a698fc48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c10faf3719bd9fca9d73e3059b3c9c89 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9241b72d6397eaa15c11449b8dc02780 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_82e8b8c378a4d3f1e1b080d709eebb58 |
| publicationDate | 1982-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S5721379-A |
| titleOfInvention | Preparation of glycidyl acrylate or methacrylate |
| abstract | PURPOSE: To obtain the titled ester, by adding acrylic or methacrylic acid to a specific amount of a suspension of an alkali metallic (bi)carbonate in an epihalohydrin at a controlled temperature, to carry out the neutralization reaction, and removing the formed water by the azeotropic distillation, and adding water to the reaction system. n CONSTITUTION: Acrylic acid or mehacrylic acid is slowly added to and neutralized with a suspension of an alkali metallic (bi)carbonate in an amount of at least 1.1 equivalents based on the acrylic or methacrylic acid in an epihalohydrin at a temperature not exceeding 108°C , and the formed water is then removed by the azeotropic distillation with the epihalohydrin to give the alkali metallic salt of the acid. A catalyst is then added to the reaction system to react the alkali metallic salt with the epihalohydrin and give a glycidyl ester thereof. Preferably, a polymerization inhibitor is present in the reaction system in both the neutralization and the esterification reactions. n EFFECT: The formation of by-products can be inhibited by controlling the temperature of the neutralization reaction. n COPYRIGHT: (C)1982,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002526484-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2006151854-A |
| priorityDate | 1980-07-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.