| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ac93f643b44e958763fd1234fe359e3f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2375-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S521-918 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-832
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J11-16 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-83
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J11-16 |
| filingDate |
1979-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1980-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_515bfb16975df5fa2407bd5ac29e9ca4 |
| publicationDate |
1980-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4196148-A |
| titleOfInvention |
Hydrolysis of polyurethane foams |
| abstract |
A method for hydrolysis of polyurethane foam and recovery of diamines and polyethers (or polyesters) from the hydrolysate carried out near atmospheric pressure and temperatures above about 185 DEG C. in a reaction zone containing water vapor which comprises increasing the rate of diamine production by inclusion of a minor, but effective amount of ammonia in the reaction zone. Volitilized diamines separated from the foam are preferably removed from the reaction zone, e.g. in an overhead stream, while polyethers (or polyesters) separated from the foam are recovered as liquid bottoms from the reaction zone. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2023161252-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4281197-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2023161251-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9074069-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3098257-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022042909-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5208379-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022112581-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022042910-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4328368-A |
| priorityDate |
1977-07-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |