http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2006129736-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D319-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D319-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D321-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D321-12 |
| filingDate | 2006-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2009-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-WO2006129736-A1 |
| titleOfInvention | Method for producing cyclic ester |
| abstract | An object of the present invention is to provide an industrially advantageous process for producing a cyclic ester, to provide an industrially advantageous process for producing a cyclic oxyester that is a raw material of poly (hydroxyalkyloxyacetic acid ester), poly An object of the present invention is to provide an industrially advantageous production method of a cyclic dimer ester which is a raw material of (α-hydroxycarboxylic acid). The method for producing the cyclic ester of the present invention comprises: [First Step] A step of adding an alkylene glycol having a boiling point higher than the cyclic ester to be produced to a specific hydroxyalkyl carboxylic acid and / or a condensate of the hydroxyalkyl carboxylic acid to obtain a polymerization solution by carrying out a polymerization reaction , [Second Step] A method for producing a cyclic ester comprising two steps of obtaining a cyclic ester having a purity of 98% or more while simultaneously heating and reacting the polymerization liquid obtained in the first step. |
| priorityDate | 2005-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 85.