http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0463012-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-49 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G12-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G12-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G12-38 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G12-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G12-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G12-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G12-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-49 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-51 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H19-24 |
| filingDate | 1990-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1993-07-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1993-07-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0463012-B1 |
| titleOfInvention | Cationic urea-formaldehyde condensates, a process for their manufacture and their use in the paper industry |
| abstract | Cationic urea-formaldehyde condensates, which may be obtained by (a) the conversion of urea with alkanol amines in the mol ratio 1 to 6:1 at temperatures of 130 to 180°C with separation of ammonia; (b) the methylolisation of the conversion products obtained in step (a) in an aqueous medium in the basic pH range with formaldehyde; (c) the condensation of the methylolisation products in an aqueous medium at a pH of 0 to 6, the condensation reaction being stopped by setting the pH to between 6.2 and 8 and, where necessary, diluting the reaction mixture with water; a process for manufacturing the condensates, and their use as stiffening agents in papermaking. |
| priorityDate | 1989-03-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 54.