http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108947920-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06M2101-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06M2200-25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06M2101-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06M2101-06 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06M13-352 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D249-20 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06M101-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06M101-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06M101-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06M13-352 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D249-20 |
| filingDate | 2018-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-05-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-05-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108947920-B |
| titleOfInvention | Reactive ultraviolet absorber and preparation method thereof |
| abstract | The invention discloses a reactive efficient ultraviolet absorbent with a general structural formula The invention also discloses a preparation method of the compound, which comprises the following steps: adding DMF into a mixed solution of Cibafast W and thionyl chloride for heating reaction, and performing corresponding post-treatment after the reaction is finished to obtain Cibafast W sulfonyl chloride; adding Cibafast W sulfonyl chloride and acetone into a reaction vessel, and then adding K 2 CO 3 And esters; reacting for 0.8-1.2 hours at room temperature; after the reaction is finished, carrying out corresponding post-treatment to obtain the reactive efficient ultraviolet absorbent as a product. The ultraviolet absorbent of the invention has reactive groups, can be covalently combined with amino and hydroxyl in a natural fiber structure, improves the fastness to washing of the ultraviolet absorbent, and overcomes the defects of poor fastness to wet treatment, low durability and the like of the common ultraviolet absorbent. |
| priorityDate | 2018-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.