http://rdf.ncbi.nlm.nih.gov/pubchem/patent/HU-192848-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e6b4a4f6d51042a8e34516ccfd04041 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b2bf6236ce5d340612ff62a106d6c013 |
| filingDate | 1983-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b782101d11500dbcefd58ba05ade29a3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d81c0eb42523e5ea2721ebf644e0d061 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8db49605712eeb72d585d86ee1960264 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c0f4ba7d1e4dc342dbddda4a04fd70d6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3809f9b0d907960fd3abbbc5796779c2 |
| publicationDate | 1987-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | HU-192848-B |
| titleOfInvention | Process for preparing azo-dicarboxylic acid diamide |
| abstract | The target cpd. is prepd. by mixing 43-100 pts. by wt. 30-70 wt.% aq. urea soln. under intense stirring with 100 pts. by wt. of an aq. soln. contg. 130-150 g per litre sodium-hypochlorite and 150-170 g per litre sodium-hydroxide. The resulting mixt. is fed through a heating zone to raise its temp. in 0.1-1.0 minutes to 110-130 deg.C and added to an aq. soln. contg. 0.76 mole equivs. inorganic or organic acid for each mole urea. The temp. of the reaction mixt. is kept at 130-150 deg.C and its pH at 7-8 until extracted samples stop consuming iodine. The resulting hydrazo-dicarbonic acid-diamide is oxidized by known methods to the azo cpd. which is sepd. from the suspension, washed and dried. - The process yields the target cpd. which is widely used in the plastics industry in a simple and economic way. |
| priorityDate | 1983-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 48.