| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1fa893ad762099de57d3c9c93b13d968 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-797
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C263-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C263-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C267-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-79
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C263-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C267-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C263-18 |
| filingDate |
2018-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c08628282246758af7dc3a2642d4f539 |
| publicationDate |
2022-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-11447447-B2 |
| titleOfInvention |
Method for producing carbodiimides |
| abstract |
The present disclosure provides new methods for preparing carbodiimides including steps of carbodiimidizing monomeric aromatic isocyanates in the presence of a catalyst, separating low boilers and catalyst from the reaction product in a thin-film evaporator, and distilling the residue from the thin-film evaporation in a further thin-film evaporator. |
| priorityDate |
2017-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |