http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104119532-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-89 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 |
| filingDate | 2014-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104119532-B |
| titleOfInvention | A kind of clear polyimides resin and preparation method thereof |
| abstract | The invention discloses a kind of clear polyimides resin, obtained with binary primary amine monomer polycondensation reaction by double (2,3 dicarboxylic acids phenoxy group) the hexamethylene dianhydride monomer of Isosorbide-5-Nitrae.Owing in dianhydride monomer, two ends phthalic anhydride structure maintains the high reaction activity of dianhydride, the alicyclic structure of intermediate space structural distortion, there is bigger free volume and sterically hindered, effectively suppress charge transfer complex in polyimide molecule and intermolecular formation, improve properties of transparency and the glass transition temperature of polymer.The glass transition temperature of gained polyimide resin is 200 DEG C～300 DEG C, UV cut-off wavelength is 370～380nm, light transmission rate at 450nm is 75%～90%, has preferable application prospect in fields such as the flexible substrate material of solaode, flexible transparent conducting film backing material, liquid crystal display materials.The invention also discloses a kind of dianhydride monomer, can be used for preparing clear polyimides resin. |
| priorityDate | 2014-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 62.