http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3339538-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G75-0254 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G75-0231 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-0231 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-0254 |
| filingDate | 1983-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f8636d066d63374917cd0a2d791aeda3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a2b33940a1ed26291b44fcc1fafd0742 |
| publicationDate | 1985-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-3339538-A1 |
| titleOfInvention | METHOD FOR PRODUCING BRANCHED POLYARYL SULFIDES WITH HIGH MOLECULAR WEIGHT |
| abstract | A process for the preparation of branched polyarylene sulphides of high molecular weight comprises reacting dihaloaromatic compounds with alkali metal sulphides in the presence of from 0.5 to 10 mol% of alkali metal sulphite and/or alkaline earth metal sulphite, based on the amount of alkali metal sulphide, and from 0.05 to 3 mol% of tri- or polyhaloaromatic compounds, based on the amount of dihaloaromatic compounds, in 5- to 7-membered lactams which are substituted on the nitrogen atom by an alkyl or cycloalkyl radical as solvent at a temperature of from 180 to 350 DEG C, in which alkali metal sulphides in an N-substituted lactam with a boiling point of above 220 DEG C are introduced into a reactor, the haloaromatic compounds are added at a temperature above the boiling point of the dihaloaromatic compounds used and below the boiling point of the N-substituted lactam used, at the rate at which they are consumed. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4916179-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4988756-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021245155-A1 |
| priorityDate | 1983-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 78.