http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2019059835-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e7828bffde81e5d329be574876b9234c |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L79-08 |
| filingDate | 2017-09-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_34685cefd8dfa7ee7a06ad1737e9d2db http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e7e62299dd1f27535806d36be6d040a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_928567d5015cabc29417fb5fe3e18def http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d8da0c7860f40fd98f8875dfa03b8611 |
| publicationDate | 2019-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2019059835-A |
| titleOfInvention | Polyimide powder, polyimide varnish and polyimide film |
| abstract | An object of the present invention is to provide a polyimide powder and a polyimide varnish which are soluble in an organic solvent and have excellent handling properties, which give a polyimide film excellent in heat resistance, transparency and mechanical properties. Kind Code: A1 A polyimide powder which is a blend of a polyimide powder A and a polyimide powder B and is soluble in an organic solvent, and the polyimide powder A and the polyimide powder B each have at least one aromatic group The polyimide powder A comprises a polyimide having a structural unit derived from a diamine compound and a structural unit derived from at least one tetracarboxylic acid dianhydride, and the polyimide powder A has a weight average molecular weight of 100,000 g / mol or more and less than 250,000 g / mol The polyimide powder B is made of polyimide having a weight average molecular weight of 250,000 g / mol to 500,000 g / mol, and the weight ratio of the polyimide powder A / polyimide powder B is 10/90 to In the range of 90/10, and for the blend of polyimide powder A and polyimide powder B There weight average molecular weight measured is a varnish prepared by dissolving polyimide powder which is characterized, and such polyimide powder in an organic solvent at a predetermined concentration in the range of 160,000~350,000g / mol. 【Selection chart】 None |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021182589-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20220147139-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020230663-A1 |
| priorityDate | 2017-09-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 129.