| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_292e53b3aa569633e542ca7d0aea29b4 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-69
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F36-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F236-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08C19-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F279-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G81-024
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L63-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-692
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08C19-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L9-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L9-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F136-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L9-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-69
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F36-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G81-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L63-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F136-06 |
| filingDate |
2018-07-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d11e910a195e3b08f51d4c27214628e0 |
| publicationDate |
2022-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-11292856-B2 |
| titleOfInvention |
Urea terminated butadiene polymers and butadiene acrylonitrile copolymers |
| abstract |
Urea-terminated polybutadiene polymers and polybutadiene acrylonitrile copolymers useful as both accelerators and tougheners are disclosed for use in epoxy formulations cured with dicyandiamide. The inventive urea-terminated polymers achieve comparable toughness in cured epoxy formulations when compared to that achieved with traditional polymeric or rubber tougheners with little to no change in glass transition temperature. Viscosity improvement and stability over time are also an advantage. A method of preparation emphasizing aspects of reaction stoichiometry is also disclosed. |
| priorityDate |
2017-07-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |