http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4587058-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C205-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C265-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-7671 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C263-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C241-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C265-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C265-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-76 |
| filingDate | 1981-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1986-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_193eb4c0daeb05f579df5ce9b842a46d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e72eaf49d7de6c557c3b075847977f7 |
| publicationDate | 1986-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4587058-A |
| titleOfInvention | Diisocyanates of the diphenyl methane series and processes for the production thereof |
| abstract | A diisocyanate corresponding to the general formula: ##STR1## in which R 1 , R 2 and R 3 represent hydrogen or a C 2 -C 12 alkyl group provided that two of the radicals R 1 , R 2 and R 3 represent hydrogen and the third represents an alkyl group containing from 2 to 12 carbon atoms. Mixtures of diisocyanates in which the described diisocyanate is a major substituent are also within the scope of this disclosure. Such compounds and mixtures are made by reacting a nitrobenzyl halide, an unsubstituted benzyl halide or a benzyl alcohol in the presence of a Friedel-Crafts catalyst with an alkylbenzene or a nitroalkylbenzene and then converting the nitro groups to amino groups by hydrogenation or reduction. The thus-produced amino compound is then phosgenated to form the diisocyanate. n The compounds and mixtures of the present invention are useful in the production of polyurethane plastics. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5141968-A |
| priorityDate | 1980-08-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 152.