http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2018225796-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7689e9aa4e22ebbe003ff5f0db439d9a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F216-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F118-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-12 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F18-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-12 |
| filingDate | 2018-06-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac8a9c29616151ec515d4b16ac4101c8 |
| publicationDate | 2018-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2018225796-A1 |
| titleOfInvention | Method of producing modified vinyl alcohol polymer |
| abstract | Provided is a production method enabling high-efficiency production of a modified vinyl alcohol polymer that is advantageous as a dispersion stabilizer suitable for obtaining resin particles that are fine and highly homogeneous, have high plasticizer absorbency, and have suitable bulk specific gravity when suspension-polymerizing a vinyl compound such as vinyl chloride. This method of producing a formyl-group-terminated modified vinyl alcohol polymer comprises: (1) a step for obtaining a vinyl ester polymer by suspension-polymerizing a vinyl ester monomer in an aqueous medium in the presence of one or more types of halogenated methane represented by general formulas (I) to (III):n(I) H 2 CX 2 n(II) HCX 3 n(III)CX 4 ;n(2) a step for dissolving the vinyl ester polymer obtained in step (1) in an alcohol-based medium; and (3) a step for adding an alkali to the alcohol-based medium solution of vinyl ester polymer obtained in step (2) to effect a saponification reaction. |
| priorityDate | 2017-06-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 82.