http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0542320-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c946b05fd32fd1bd0e04b1ddf2061fc7 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-6886 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-193 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-688 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-193 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-79 |
| filingDate | 1987-10-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_06ed6abb469aa65a2f11324307579deb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8125ca1adac26cda7119b3afd4d7efd8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_95b5dcdffe53c77ad514a8b1a5da09e0 |
| publicationDate | 1993-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0542320-A1 |
| titleOfInvention | Process for the preparation of an aromatic polyester |
| abstract | In a continuous process for the production of aromatic polyesters by polycondensation of 9,9-bis (4-hydroxyphenyl) fluorene with iso-phthaloyl chloride and / or tere-phthaloyl chloride as dicarboxylic acid halide according to the two-phase interface polycondensation process, the aqueous phase consists first of all from a solution of the diphenols, alkali metal hydroxide to form the diphenolates and optionally a phase transfer catalyst in water or in a mixture of water and an organic solubilizer with an organic solvent; a fine pre-emulsion is continuously produced which, together with the organic liquid phase forming the acid chloride solution, is supplied to a dispersing device in quantities such that the compounds participating in the polycondensation reaction are mixed in the dispersing device in constant proportion to one another to form a reaction emulsion, which then one or passes through several dispersing devices and / or static mixers, during which the polycondensation takes place and is ended. The phases are then separated and the polyester formed is precipitated from the organic phase by introducing acetone. |
| priorityDate | 1986-10-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 54.