http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0280781-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D239-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D233-32 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D233-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C275-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D239-10 |
| filingDate | 1987-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1991-09-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1991-09-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0280781-B1 |
| titleOfInvention | Process for the preparation of n-alkyl-n'-methyl-cyclic ureas, especially n,n'-dimethylcyclic ureas |
| abstract | A method of manufacturing N-alkyl-N'-methyl-alkyleneureas, by reacting an alkyleneurea with formaldehyde to produce a hydroxymethyl-alkyleneurea, and further reacting said hydroxymethyl-alkyleneurea with formic acid to yield a N-alkyl-N'-methyl-alkyleneurea product, wherein the molar ratio of the N-alkyl-N'-hydroxymethyl-alkyleneureas or N,N'-(bis)hydroxymethyl-alkyleneureas is from 1-2 to 1-10, preferably 1-4 to 1-7. |
| priorityDate | 1987-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 73.