| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2110-0025
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2110-0008
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2110-0083
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2110-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2203-184
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2203-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2203-142 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-632
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-1808
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-144
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4072
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4018
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-60 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G101-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-63
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-60 |
| filingDate |
2019-10-30-04:00^^<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-110790881-B |
| titleOfInvention |
Polyurethane catalyst and preparation method thereof, and polyurethane spraying rigid foam and polyurethane soft foam |
| abstract |
The invention discloses a polyurethane catalyst and a preparation method thereof, and polyurethane spraying rigid foam and polyurethane soft foam. The structural formula of the polyurethane catalyst is as follows: wherein R is 1 Is selected from-NH 2 ，‑N(CH 3 ) 2 、‑NHCH 3 ；R 2 Is selected from-NH 2 、‑N(CH 3 ) 2 、‑NHCH 3 . The catalyst can be used for preparing polyurethane foam, comprising reacting organic polyisocyanate and polyol in the presence of a blowing agent, a foam stabilizer and the catalyst. The catalyst has a diethylenetriamine skeleton, has high catalytic activity and selectivity, and particularly has a strong catalytic effect on the reaction of isocyanate and water. |
| priorityDate |
2019-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |