http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S61254257-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_630b360599ea5cf4b5bcbc0c6c0a3e2d |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J47-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J47-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-02 |
| filingDate | 1985-05-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e32c87305510b2b328f9c36ad9e09f8a |
| publicationDate | 1986-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S61254257-A |
| titleOfInvention | Method for desalting polyimide solution |
| abstract | PURPOSE:To effectively remove the salt in a polyimide solution, by treating the polyimide solution containing an alkali metal salt by using a strong acid form ion exchange resin and a strong base form ion exchange resin. CONSTITUTION:A polyimide solution containing an alkali metal salt is treated with a strong acid form ion exchange resin and a strong base form ion exchange resin to perform the desalting of the polyimide solution. As the strong acid form ion exchange resin, a crosslinked polystyrene resin having a sulfonic acid group imparted thereto is pref. and, as the strong base form ion exchange resin, a resin synthesized by reacting chloromethylated crosslinked polystyrene with trimethylamine is pref. used. The strong acid form resin and the strong base form resin may be used separately but, in order to obtain a higher desalting ration, it is pref. to use both resins in a mixed state. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021238315-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2012128392-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111607024-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011149023-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109225359-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-I402296-B |
| priorityDate | 1985-05-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID1146 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419525332 |
Total number of triples: 20.