http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101518240-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D403-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F15-00 |
| filingDate | 2014-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2015-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-101518240-B1 |
| titleOfInvention | poly(amide imide) having low thermal expansion coefficient |
| abstract | The present invention relates to a diamine represented by the formula [D] wherein two substituents R and R 'are asymmetrically bonded to one of the ring groups A. The diamines prepared according to the present invention are asymmetrically bonded to the benzene ring so as to inhibit various interactions of the polyimide, so that not only the solubility of the polyamideimide can be increased, but also the low polarizability of the fluorine atom , The moisture absorption rate, the dielectric constant, the refractive index, and the like can be remarkably lowered. Two substituents R and R ' which are asymmetrically introduced into the molecular structure cancel the symmetry between the polyamideimide chains and thus further reduce the interaction. [Chemical Formula D] |
| priorityDate | 2014-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 221.