| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9b0f615b92cd3bb66e8ea41483a2dc63 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C273-1827
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C273-189
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C275-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C275-30 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C275-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C275-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C275-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C273-18 |
| filingDate |
1989-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c1db91f09a75a156a27d3a0349de8210
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_90ebf1fbf2a7c1ee0882341e8fcd3738
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_13cc321519cdb9f0955c0a5334f35cc5 |
| publicationDate |
1990-06-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0371698-A1 |
| titleOfInvention |
Process for the preparation of methylene diphenylene bis (dialkyl-ureas) and polymethylene polyphenylene poly (dialkyl-ureas) |
| abstract |
Methylene diphenylene bis (dialkylureas) or polymethylene polyphenylene poly (dialkylureas) are prepared by reacting a methylene diphenylene diamine or a polymethylene polyphenylene polyamine with isocyanic acid (HNCO) to convert the amino groups of the amines to urea groups (-NHCONH₂) to give a bis urea or polyurea which is then reacted with a dialkyl amine having from 1 to 8 carbon atoms to produce the desired bis (dialkylurea) or poly (dialkylurea). |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0402020-A1 |
| priorityDate |
1988-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |