http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020224377-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_073b05644e3d35d6942a263a64bf6695 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-42 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-42 |
| filingDate | 2020-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_85f839481e96481c3694867272161ba7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_86bc86be4d06bcb8e62fb145e267ef0f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1567a44bafab6d2f799ec643eefd6e4e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6559d781c40eb12951cd290f2a402493 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b0484feba9506cf61493434905e68ec0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1a080d9078afedac66e2439a31aeca4d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e25a01cc424285e42b2d4658140eac2a |
| publicationDate | 2020-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2020224377-A1 |
| titleOfInvention | Flame-retardant semi-aromatic polyamide and preparation method therefor |
| abstract | A flame-retardant semi-aromatic polyamide, derived from the following monomers: diacid monomer A: A1 is terephthalic acid or terephthalic acid and another diacid, and the terephthalic acid accounts for 50-100 mol% of A1, and A2 is a phosphorus-based flame-retardant monomer having a diacid functional group and containing an aromatic ring structure, A1+A2 = 100 mol％, A1 = 90-99 mol％, and A2 = 1-10 mol％; and diamine monomer B: one or more of the diamine monomers containing 4-36 carbon atoms. By means of copolymerising the phosphorus-based flame-retardant monomer having a diacid functional group and containing an aromatic ring structure in a semi-aromatic polyamide segment by means of an in-situ polymerisation method, excellent flame retardancy and mechanical properties and high whiteness can be obtained, and yellowing will not easily occur in high-temperature conditions. In addition, the preparation method uses a gradient heating method, and the in-situ copolymerisation method synthesises semi-aromatic polyamide with intrinsic flame-retardant properties, without the need to separately synthesise flame-retardant precursors, such that the operating steps are simple and production costs are reduced. |
| priorityDate | 2019-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 234.