http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2020152917-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_10764c702d0d4b02a17856a8e212a0bd |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F12-00 |
| filingDate | 2020-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_88c20ba883556e074d0accd3b0017045 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ff37c3596afeb708febaf9e5df88f70f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6c86e2e76e30be491b7d3ed12067fb79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6287d3eab5bdabe853999a91e6d07bcf |
| publicationDate | 2020-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2020152917-A |
| titleOfInvention | Vinyl aromatic hydrocarbon polymer, polymer composition and molded article |
| abstract | 【Task】 Provided are vinyl aromatic hydrocarbon-based polymers, polymer compositions and molded articles in which low molecular weight polymers are reduced and have an expanded molecular weight distribution. SOLUTION: An anion polymer A1 in which a monomer containing a vinyl aromatic hydrocarbon is anionically polymerized by a polymerization initiator containing a bifunctional polymerization initiator as a main component, and the anion polymer A1 are cupped by a bifunctional coupling agent. In a vinyl aromatic hydrocarbon-based polymer containing a ringed anion polymer A2, the anion polymer A1 and the anion weight are measured by the gel permission chromatography method and obtained by a number average molecular weight curve obtained in terms of polystyrene. The area ratio of the anion polymer A2 to the total area of the combined A2 is 40% or more, and the area ratio of the polymer having a number average molecular weight of 500,000 or more is 15% or more. As a result, the low molecular weight polymer is reduced, and a polymer having an expanded molecular weight distribution is obtained. [Selection diagram] None |
| priorityDate | 2016-04-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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