| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2230-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2110-0025
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2110-0083 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08H6-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4081
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-6492
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4825
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4833
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-7614
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-7671
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-7664 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G101-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08H7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-76 |
| filingDate |
2017-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2021-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2021-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-109206589-B |
| titleOfInvention |
Preparation method of pyrolysis lignin and lignin-based polyurethane rigid foam |
| abstract |
The invention provides a cracked lignin which is obtained by hydrocatalytically cracking wood fibers. The invention also provides a preparation method of the lignin-based polyurethane rigid foam, and the cracked lignin provided by the invention replaces part of petroleum-based polyol. The lignin-based polyurethane rigid foam prepared by the preparation method disclosed by the invention is excellent in performance, degradable, reproducible and environment-friendly, and has great industrial application prospects. |
| priorityDate |
2017-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |