http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112724382-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2203-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2203-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2367-02 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-6856 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-122 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-916 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-91 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-685 |
| filingDate | 2020-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112724382-B |
| titleOfInvention | A kind of polyester foam material and preparation method thereof |
| abstract | The invention relates to a polyester foam material and a preparation method thereof. The modified polyester is subjected to solid-phase polycondensation and thickened and then blended with zinc chloride to obtain the polyester foam material; the preparation method of the modified polyester is as follows: After terephthalic acid, ethylene glycol and 2,5-pyridinedicarboxylic acid are mixed uniformly, esterification reaction and polycondensation reaction are carried out successively to obtain modified polyester; the polyester segment of the obtained polyester foam material includes terephthalic acid Formic acid segment, ethylene glycol segment and 2,5-pyridinedicarboxylic acid segment, and the 2,5-pyridinedicarboxylic acid segments of different polyester segments are coordinated by Zn 2+ ; terephthalic acid The molar ratio of the chain segment and the 2,5-pyridinedicarboxylic acid segment is 1:0.08-0.10; the 2,5-pyridinedicarboxylic acid segment participating in the coordination includes the O atom on the carbonyl group and the N atom on the pyridine. In the preparation method of the polyester foam material of the present invention, after the introduction of zinc ions to participate in the coordination, the cross-linking point of the polymer is increased, and the sensitivity of the flow activation energy of the polyester to the temperature is reduced; The material foaming ratio is 16.3-19.7, and the apparent density is 60.5-75.6 kg/m 3 . |
| priorityDate | 2020-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 52.