http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2463783-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5d9f3ca41550d315642580237250c5b0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-78 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-12 |
| filingDate | 1980-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3bbdc4b65661b367b42dc02e15b13668 |
| publicationDate | 1981-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | FR-2463783-A1 |
| titleOfInvention | PROCESS FOR PREPARING A BRANCHED POLYESTER |
| abstract | THE INVENTION IS RELATING TO BRANCHED POLYESTERS. THE PREPARATION PROCESS CONSISTS, IN A FIRST STEP IN REACTING A DIOL, A DIACID AND A POLYFUNCTIONAL MODIFIER HAVING AT LEAST 3 FUNCTIONAL RADICALS, TO OBTAIN A CONDENSATION POLYMER AND IN A SECOND STEP, IN POLYCONDENSER IN A SECOND STEP, IN POLYCONDENSER TRANSESTERIFICATION CATALYST, TO FORM A BRANCHED POLYESTER, THE ACTIVITY OF THE CATALYST BEING DECREASED, THE TEMPERATURE REDUCED OR THE PRESSURE INCREASED BEFORE OR DURING THE POLYCONDENSATION, WHEN THE DEGREE OF ADVANCEMENT OF THE REACTION FAVORING THE FORM OF THE LINEAR GROWTH RAMIFICATIONS OF MORE THAN 0.1. THE FIGURE GIVES THE THEORETICAL INHERENT VISCOSITY (IN ORDER) AS A FUNCTION OF THE DEGREE OF ADVANCEMENT OF THE REACTION FOR A BRANCHIFIED AND UNBRANIFIED POLYMER, FOR CONCENTRATIONS OF POLYFUNCTIONAL MODIFIER RANGING FROM 0 TO 0.5MOLE PERCENT OF DIACID. OBTAINING A POLYESTER HAVING REPRODUCIBLE PROPERTIES FROM BATCH TO BATCH. |
| priorityDate | 1979-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 76.