http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2020037619-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7f9af914ed2fb00cd4f1b8b1a28964e4 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L39-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-00 |
| filingDate | 2018-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b27b0c618494ce9feb3157ad65bf7410 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2554984dd1dab5358377702c09c7078a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c90a56547b140863d09a6d6550f65fa4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e2dbddf75c25689b49c0e87c25457ef2 |
| publicationDate | 2020-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2020037619-A |
| titleOfInvention | Polyvinylpyrrolidone-containing composition |
| abstract | PROBLEM TO BE SOLVED: To provide a polyvinylpyrrolidone-containing composition which is excellent in heat resistance at a higher temperature than in the past and can sufficiently suppress the decomposition of a pyrrolidone ring. SOLUTION: The composition contains polyvinylpyrrolidone and a heat resistance improver, and the content of the heat resistance improver is 0.1 to 10% by mass relative to 100% by mass of polyvinylpyrrolidone, and when heated at 200 ° C for 24 hours. Wherein the decomposition ratio of the pyrrolidone ring calculated by the following method is 30% or less. <Calculation of decomposition rate of pyrrolidone ring> The 13 C solid-NMR was measured for the polyvinylpyrrolidone-containing composition before and after heating, and the area of the peak appearing at 0 to 24 ppm in the NMR chart of the composition before heating was α1, the area of the peak appearing at 160 to 195 ppm. β1, the area of the peak appearing at 0 to 24 ppm in the NMR chart of the composition after heating is α2, and the area of the peak appearing at 160 to 195 ppm is β2, and the decomposition rate of the pyrrolidone ring is determined by the following formula (1). Decomposition rate of pyrrolidone ring = (α1 / β1-α2 / β2) / (α1 / β1) × 100 Equation (1) [Selection diagram] None |
| priorityDate | 2018-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 174.