| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2603-94 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C261-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C323-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C317-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C315-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C-
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C313-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C261-02 |
| filingDate |
1976-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1979-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_07df406052f2c89aa7b9414ccf192e25
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c97957dad9626ec12ff48eb2624e4a2e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_adb7c1085e1da250a673ea94aaecf1df
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6c1a1a4b826263d75a810a67d0bd33dd |
| publicationDate |
1979-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-1063129-A |
| titleOfInvention |
Process for the production of highly pure, polyfunctional cyanic acid esters |
| abstract |
A PROCESS FOR THE PRODUCTION OF HIGHLY PURE, POLYFUNCTIONAL CYANIC ACID ESTERS ABSTRACT OF THE DISCLOSURE Highly pure aromatic polyfunctional cyanic acid esters having a high stability in storage and being extraordinarily suitable for use as starting compound for the production of plastics by cyclopoly-tri-merization are obtained by a special process. A di- or polytrialkyl ammonium phenolate of the formula: in which Ar represents an optionally substituted aromatic radical, R1,R2 and R3 are the same or different and each represents a linear or branched alkyl radical, and n is a number from 2 to 6, is reacted at a temperature in the range of from -40 to +65°C in the presence of a trialkyl amine and an organic sovent with an excess of cyanogen halide. The excess of cyanogen halide is up to 80% by weight, based on the total weight of the phenolate and the trialkyl amine. |
| priorityDate |
1975-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |