| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_75a9b43328a2cbfcf60da8b223a321c7 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C239-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C269-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| filingDate |
1979-02-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1980-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3ddd625f2a02b4e9e3f29c40f97fe1d8 |
| publicationDate |
1980-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4202986-A |
| titleOfInvention |
Preparation of diphenylmethane dicarbamates and polymethylene polyphenyl carbamates with Lewis acid catalysts intercalated in graphite |
| abstract |
Diphenylmethane dicarbamates and polymethylene polyphenyl carbamate homologs and derivatives of these compounds are produced by the condensation of N-aryl carbamic acid esters, such as ethylphenylcarbamate, with a carbonyl compound selected from formaldehyde, para-formaldehyde or trioxane at a temperature of between about ambient and 170 DEG C. in the presence of a Lewis acid intercalated in graphite and optionally in the presence of an inert solvent. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004256605-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1323670-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1323670-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4282370-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7479513-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5206412-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003157015-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7118725-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4319018-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4415745-A |
| priorityDate |
1979-02-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |