http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109836563-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-52 |
| filingDate | 2017-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109836563-B |
| titleOfInvention | Preparation method of unsaturated polyester resin containing glycerol monomethyl ether unit |
| abstract | The invention provides a preparation method of unsaturated polyester containing a glycerol monomethyl ether unit and unsaturated polyester prepared by the same. The preparation method comprises the following steps: 1) adding dihydric alcohol, an acid monomer and a reaction promoter into a reactor, and heating to 150-160 ℃ under an inert atmosphere; 2) in the reaction process, when the acid value of the reaction system reaches 130-170 mgKOH/g, heating to 170-200 ℃; 3) continuing the reaction, stopping the reaction when the acid value of the reaction system reaches 30-40mgKOH/g, cooling to 80-100 ℃, adding 15-30 wt% of a diluent based on 100 wt% of the total weight of the reaction system, and discharging; wherein the glycol comprises monomethyl ether, the acid monomer comprises maleic anhydride and optionally a dibasic or other anhydride, and the reaction promoter is selected from citric acid, phosphoric acid or sulfonic acid. |
| priorityDate | 2017-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 53.