http://rdf.ncbi.nlm.nih.gov/pubchem/patent/BR-PI0707139-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0bf0928b608797b70bbc2b91c7e52e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C263-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-78 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C263-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C265-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-50 |
| filingDate | 2007-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0d2aab173c3932c098020f92459c260a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e746395f11abdf48ba29181a63571754 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_677c8aa8ded795fbcf524c2f5ee667de http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2b733d87214edfb2ca302d55fb246681 |
| publicationDate | 2011-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | BR-PI0707139-A2 |
| titleOfInvention | process for the simultaneous preparation of compounds |
| abstract | PROCESS FOR THE SIMULTANEOUS PREPARATION OF COMPOUNDS. The invention provides a process for the simultaneous preparation of 4,4'-diphenylmethanediamine and also diphenylmethane diisocyanate and polyphenylenepolymethylene polyisocyanates, comprising the steps: a) preparation of a mixture of diphenylmethanediamine and polyphenylenepolymethylenopolymines by aniline formaldehyde and acid condensation development of the mixture, b) part of the mixture prepared in step a), c) distillation of the mixture separated in step b) in a column, d) recirculation of the bottom product from step c) to the final product of step a) and condensation of the top product of step c), e) distillation of the top product of step c) in a column, f) recirculation of the top product of step e) to the final product of step a), g) isolation of the 4,4'-diphenylmethanediamine obtained as a background product in step e), h) reaction of the mixture of step a) with phosphogen and subsequent development of the reaction product. |
| priorityDate | 2006-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.