| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_36c7e6417df7d3a93390112f3b4a70b5 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-54 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C263-20 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-72
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C265-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C263-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F6-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C275-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C271-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C241-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C265-12 |
| filingDate |
1987-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_39ec1340ddd5ce8dccd2985231890927
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1af08f9a7ce88ea323ea636c4bab2d3f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_928e946c2019c7c7be58ceb8937ec807
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62211852c171ef7219c1123c931edc89 |
| publicationDate |
1989-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
FR-2621037-A1 |
| titleOfInvention |
PROCESS FOR THE PURIFICATION AND ISOLATION OF ISOCYANATE CONDENSATES BY LIQUID OR SUPERCRITICAL CO2 EXTRACTION |
| abstract |
The present invention relates to the purification and isolation of isocyanate condensates containing free NCO groups obtained from excess aromatic di- or polyisocyanates and at least one antagonist compound having at least two groups reactive with respect to NCO groups, said antagonist compound possibly being an aromatic diisocyanate. It essentially comprises the treatment with an inert gas in the liquid or supercritical state of said crude condensates containing free NCO groups. A polyisocyanate is thus obtained containing a very small amount of free aromatic diisocyanate. |
| priorityDate |
1987-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |