http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0649208-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_20d3042eb4ea7c9afd525aa89373349d |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-02 |
| filingDate | 1992-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2a95b89a3c28590b134ea61bf2709110 |
| publicationDate | 1994-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H0649208-A |
| titleOfInvention | Method for producing high molecular weight polyarylene sulfide |
| abstract | (57) [Summary] [Structure] (1) In a polar organic solvent, in the presence of water (C), a sulfidizing agent (A) such as alkali sulfide or a mixed system of alkali hydrosulfide and alkali hydroxide and p-dihalobenzene are combined. Such a polyhaloaromatic compound (B) is reacted to form polyarylene sulfide, and the solvent ratio at the end of this step is made smaller than the solvent ratio at the start of the reaction. Solvent ratio 1.0 at the end of 8.0 To the second step of adding water (C) to the system to continue the reaction and increasing the polyarylene sulfide to a high molecular weight, at least two steps. Method for producing high molecular weight polyarylene sulfide. . [Effect] A high molecular weight PAS having a small amount of oligomers and excellent impact strength can be obtained. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2008260858-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2003026804-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4635344-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009185143-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002293939-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-02081548-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002212292-A |
| priorityDate | 1992-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 147.