http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2706343-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_99cd2888b2026702c522c60b1544ff90 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-405 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G75-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-40 |
| filingDate | 2019-06-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-11-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dcc75123a566146c861cb97359e1b93c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6b05fe3aaeccf9f918eb252df76fba94 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f9a4a4f8f9e3f209fd55f68d2df763e5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c8b613043ccb0ecb8254ef582b75c85e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d7d523cd80cb59d925ce9c41e0794d68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ef15420a2d2484d00978e7745f6317db http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_094a20e3ab2e9ec0e136d38a38d98179 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6c3899d2811e81a2531b233fc84c2f44 |
| publicationDate | 2019-11-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2706343-C1 |
| titleOfInvention | Polyesters for composite materials and method for production thereof |
| abstract | FIELD: chemistry.SUBSTANCE: invention relates to aromatic polyesters, in particular to aromatic polyethersulfonarylates, as well as to a method for production thereof. Polyesters can be used as polymer matrix of various composite materials used in aviation, space, automotive and other industries, as well as in electronics and electrical engineering. Polyesters have the following formula, in which n=1–20; m=1–30; z=1–30. Method of producing polyesters involves accepting at the first stage of synthesis an acceptor-catalytic polycondensation of oligosulfone based on phenolphthalein with a condensation degree of 1–20 with an equimolar mixture of terephthaloyl chloride and 1,1-dichloro-2,2-di(4-carboxyphenyl)ethylene. Polycondensation is carried out in high-boiling solvent ditolilmetane or diphenyl oxide at temperature of 25–60 °C for 1 hour. At the second synthesis step, high-temperature polycondensation is carried out for 1 hour at temperature of 200–220 °C in the presence of triethylamine hydrochloride. Then, polymer solution is poured into hot tetrachloroethane. Polyester is then planted in isopropanol. Upset polyester does not contain trace hydrochloric triethylamine. Conjured hydrochloric triethylamine is collected from the inner surface of the reactor cover, washed with dichloroethane and used as an independent product..EFFECT: invention enables to obtain polyesters with high fire-, heat- and thermo-resistance, as well as mechanical characteristics.2 cl, 1 tbl, 3 ex |
| priorityDate | 2019-06-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.