| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_91a923eced867530c082154761d539b9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e848ec2c4e388a75e5daa582ef032b6e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b8a64f9ed316e35566b7f652fc7bdee1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_66ca483631443a9b45dd7a8cd405fd32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2cb72657cf0479385a9b5e655af1e16f |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G75-0254
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G75-025 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-025
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-02 |
| filingDate |
2002-03-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a6da5470c2cf8154b7ece9df1d569bd0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_155573f64362a9af9f861452f3dedafd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1a92ac89008f1e11f7fcce965e9bf511 |
| publicationDate |
2002-09-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-02072650-A1 |
| titleOfInvention |
Process for producing polyarylene sulfide |
| abstract |
A process for continuously producing a polyarylene sulfide by reacting a sulfur source with a dihalogenated aromatic compound in an aprotic organic solvent, characterized in that it comprises at least one polymerization step wherein a polymer phase as a dispersed phase takes the form of spherical droplets. The process allows, in a continuous polymerization of PAS, a polymer phase and a solvent phase to be withdrawn from a polymerization vessel at a constant withdrawal ratio, resulting in maintaining the PAS composition (concentration) in the polymerization vessel to be constant, and thus is useful for the enhancement and the stabilization of the molecular weight of the resulting PAS. |
| priorityDate |
2001-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |