http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109467716-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G59-063 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08H6-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G59-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08H7-00 |
| filingDate | 2018-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109467716-B |
| titleOfInvention | Lignin modification method and lignin-based epoxy resin preparation method |
| abstract | The invention discloses a lignin modification method, which comprises the following steps: adding lignin and metal oxide into the eutectic liquid for modification reaction, and separating after the reaction is finished to obtain the modified lignin. Based on the lignin modification method, the invention also provides a preparation method of the lignin-based epoxy resin. The method for modifying the lignin uses the eutectic as a solvent, is cooperated with a metal oxide to modify the lignin, utilizes hydrogen bonds formed by urea and choline chloride in the eutectic to controllably break C-C, C-O bonds and surface functional groups in a lignin structure, achieves the effect of fully dissolving the lignin, and then utilizes lattice oxygen formed in a metal oxide M ═ O bond to selectively oxidize the lignin, thereby efficiently catalyzing and removing methoxyl groups on the surface of the lignin and breaking C-O bonds in the lignin, achieving the purposes of reducing steric hindrance of the lignin spatial structure and increasing the content of surface hydroxyl groups, and being capable of improving the reaction activity of the lignin and epoxy chloropropane. |
| priorityDate | 2018-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.