http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2010041509-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-91 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 |
| filingDate | 2009-08-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2012-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-WO2010041509-A1 |
| titleOfInvention | Method for producing polyhydroxypolyester |
| abstract | By eliminating the by-product removal step, polyhydroxypolyester that can suppress the occurrence of molding defects due to the generation of carbon dioxide due to the carboxyl group at the end during molding of the molded body, the solvent and the recovery device Can be produced efficiently by reducing the environmental burden, especially by forming a linear polyester as a by-product into a radial polyhydroxypolyester, which can be used effectively, and yield is improved. A method for producing a good polyoxypolyester is provided. After growing a polyester using a nucleating polyhydroxy compound having two or more hydroxy groups and an oxyacid to obtain a polyhydroxy polyester and a linear polyester having a carboxyl group at the end as a by-product Then, a carboxyl group blocking agent is added to the reaction system, and the carboxyl group blocking agent is bonded to the terminal carboxyl group of the linear polyester. |
| priorityDate | 2008-10-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 77.