| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_96eddd31165955882708d73c89118259 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2170-80 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-6492
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B7-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-7671
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09J11-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-7621
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D175-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09J175-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-0852 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-64 |
| filingDate |
2019-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3321498db7fb2cc4ad6006cc1347b06d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c71a413bf6439cb79b4332835f49b82a |
| publicationDate |
2019-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2019241607-A1 |
| titleOfInvention |
Lignin-based polyurethane prepolymers, polymers, related compositions, and related methods |
| abstract |
The disclosure relates to a polyurethane prepolymer and corresponding crosslinked network polymer incorporating lignin as a natural polyol in the polyurethane system. The polyurethane prepolymer includes a reaction product between an isocyanate, lignin, and a cyclic alkyl carbonate. The reaction product includes (i) free isocyanate groups and/or free hydroxyl groups, (ii) urethane linking groups between residues of lignin aliphatic hydroxyl groups and the isocyanate, (iii) ester linking groups between residues of lignin aromatic hydroxyl groups and a ring-opened form of the cyclic alkyl carbonate, and (iv) optionally urethane linking groups between residues of the ring-opened cyclic alkyl carbonate and the isocyanate. The polyurethane polymer can be a networked, crosslinked polymerization product of the prepolymer reaction product, for example in combination with a lignin curing agent. The polyurethane polymer can be used as a coating on a substrate, an adhesive joining multiple substrates, etc. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113201112-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113201112-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114605595-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114605595-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021150864-A1 |
| priorityDate |
2018-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |