| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6fd83303735006e917a468db06a7a140 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C263-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C263-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-36 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-06 |
| filingDate |
2008-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2014-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_09568a9491c851ea9c2f29252af7b90c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ea54a45fdb00f9b65b2d401bde3fafe0 |
| publicationDate |
2014-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-101754945-B |
| titleOfInvention |
Process for preparing mixtures of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanates |
| abstract |
The present invention relates to a process for preparing mixtures of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanates by sequential reaction of benzene to nitrobenzene to aniline to polyphenyl polymethylene polyamines to polyphenyl polymethylene polyisocyanates wherein the benzene used as the starting material contains 500 to 5000 ppm w/w toluene and/or xylenes. |
| priorityDate |
2007-06-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |