http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110790880-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-792 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-022 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D251-34 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D251-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-02 |
| filingDate | 2019-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110790880-B |
| titleOfInvention | Preparation method of TDI tripolymer, TDI tripolymer containing solvent and application thereof |
| abstract | The invention provides a preparation method of TDI trimer, which is prepared by taking toluene diisocyanate as a monomer raw material and carrying out self-polymerization in a solvent under the action of a Mannich base catalyst, wherein the content of secondary amine structural impurities in the Mannich base catalyst is less than or equal to 1000 ppm. The preparation method of the TDI trimer provided by the invention has the advantages that the TDI trimer product with lighter color, better yellowing resistance and more stable storage is prepared by controlling the content of impurities, the preparation method is simple and convenient in process, mild in reaction condition, free from excessive economic cost and very high in industrial application value. |
| priorityDate | 2019-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.