http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1288937-A
Outgoing Links
| Predicate | Object |
|---|---|
| filingDate | 1969-06-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1972-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1288937-A |
| abstract | 1288937 Methylene bridged polyaryl amines IMPERIAL CHEMICAL INDUSTRIES Ltd 5 May 1970 [9 June 1969] 29092/69 Heading C2C Methylene bridged polyaryl amines are prepared by condensing a primary arylamine and formaldehyde at elevated temperature in the presence of a strong organic carboxylic acid of pKa value less than 1À5 such as oxalic, trifluoroacetic, triehloroacetic, dichloroacetic, difluoroacetic and heptafluorbutyric acids. A neutral metallic salt, e.g. a halide of an alkali or alkaline earth metal may also be present and the reactants may be heated at a pressure above atmospheric and the process carried out in a continuous manner. Reference has been directed by the Comptroller to Specification 1,177,557 |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6031136-A |
| priorityDate | 1969-06-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 12.