http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1246596-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3e9445e5e3626f36e932c6451a928250 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D301-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D303-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D303-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G59-063 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D303-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D303-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G59-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D301-27 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D301-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L63-00 |
| filingDate | 1986-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1988-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_53c844708433333257789ce520fd5d5a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_235d2ae7696b7e6ab78b98b8be565bf1 |
| publicationDate | 1988-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1246596-A |
| titleOfInvention | Process for the preparation of glycidyl compounds |
| abstract | Improved process for the preparation of glycidyl compounds Abstract of the Disclosure A process for the preparation of glycidyl compounds by reacting a compound containing at least one phenolic group with at least the equivalent amount, based on the phenolic group, of a halohydrin in a substantially anhydrous, aprotonic solvent in the presence of a solid, substantially anhydrous catalyst, is described, which process comprises carrying out the reaction at a temperature in the range from 40° to 80°C in the presence of an alkali metal carbonate, an aprotonic dipolar solvent with a static relative dielectric constant of more than 25 (at 25°C) and a permanent electric dipole moment of more than 2.5 D being used, an additional feature of said solvent being that the transition energy of the solvatochromic absorption band of the dissolved N-(3,5-diphenyl-4-hydroxyphenyl)-2,4,6-tri-phenylpyridinium perchlorate is in the range from 168 to 197.4 kJ/mole (at 25°C), or which process comprises carrying out the reaction at a temperature in the range from 60° to 80°C in the presence of an alkali metal hydroxide and a phase transfer catalyst chosen from the group consisting of ammonium and/or phosphonium compounds, the water of reaction formed being removed continuously and an inert, aprotonic, apolar solvent with a static relative dielectric constant of less than 8.0 (at 25°C) and a permanent electric dipole moment of less than 2.0 D being used, an additional feature of said solvent being that the transition energy of the solvatochromic absorption band of the dissolved N-(3,5-diphenyl-4-hydroxyphenyl)-2,4,6-triphenylpyridinium perchlorate is in the range from 140 to 165 kJ/mole (at 25°C). The resins obtained in this manner have a high degree of epoxidation and a low content of hydrolysable or ionic halogen. They are particularly suitable as potting resins for electronic components. |
| priorityDate | 1985-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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