http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107973899-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G59-623 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G59-62 |
| filingDate | 2017-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107973899-B |
| titleOfInvention | A kind of preparation method of modified epoxy curing agent based on cardanol |
| abstract | The invention provides a method for preparing a cardanol-based modified epoxy curing agent. Weigh cardanol glycidyl ether and amine, add them to a reactor, heat to 60-160°C under nitrogen protection, and stir for 1-10 hours , and then add cardanol and aldehyde under the condition that the temperature does not exceed 75°C, and react for 2 to 5 hours, then vacuumize at this temperature to remove the water generated by the reaction, making an orange-yellow transparent oily substance, and then discharging to obtain cardanol Modified amine epoxy resin curing agent. The invention utilizes the reaction of cardanol glycidyl ether and amine to generate an intermediate with active amine that can be continuously modified. The cardanol-based epoxy curing agent is modified by introducing two cardanol segments into the curing agent molecule, which increases the toughness of the paint film after curing, and at the same time makes the shortcomings of the traditional cardanol-modified epoxy curing agent to a certain extent It has been improved, and the surface hardness of the paint film can reach H after curing at low temperature (‑15°C) for seven days. |
| priorityDate | 2017-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.