| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D10B2509-026
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D10B2501-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2203-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D10B2501-04 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4854
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-7671
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-76
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L75-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F1-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-3215
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-32 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L75-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F1-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-70 |
| filingDate |
2017-10-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2021-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2021-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-109923173-B |
| titleOfInvention |
Preparation method of antioxidant and preparation method of polyurethane elastic fiber |
| abstract |
The antioxidant of the present invention comprises a polyurethane compound represented by the following formula (1). Y is 1 Being the residue of a diol, a plurality of Y 1 May be the same or different. R 1 Is the residue of an aromatic diisocyanate, a plurality of R 1 May be the same or different. X 1 A plurality of X's being a residue of a hindered phenol compound having k or more hindered phenolic hydroxyl groups 1 May be the same or different. m is an integer of 1 or more, n is an integer of 1 or more, and k is an integer of 2 or more. |
| priorityDate |
2016-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |