| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2371-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2650-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2203-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2381-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2650-30 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G75-23
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-122
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-4012 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-23
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L71-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L81-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-40 |
| filingDate |
2020-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2022-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-114249887-B |
| titleOfInvention |
A kind of branched polymer and its preparation and foam material |
| abstract |
The invention provides a branched polymer and a preparation method thereof, which solves the problem of cross-linking in the preparation process of the existing branched polyaryletherketone (sulfone), and realizes the branched polyaryletherketone (sulfone) with high branching degree and high Unity of molecular weight. The structural formula of the polymer is shown in formula (I) or formula (II). The invention also provides a foam material prepared by using the polymer as a matrix resin, and the foaming method is supercritical carbon dioxide foaming. |
| priorityDate |
2020-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |