| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2683e51e950b5031619e3c537cd352c5 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2377-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-2495
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-269 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L77-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-32 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L77-10 |
| filingDate |
2020-08-31^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ae1bbda9e4fde46a46f7123bc0889ef1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7dffaae2eed618adabd1ccafa24891e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_204df011c39f776c1efe53a8722237ad
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c7c3157748c73fecbb6b3ddaaf591176 |
| publicationDate |
2020-12-24^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2020399469-A1 |
| titleOfInvention |
Aromatic Polyamide Films for Solvent Resistant Flexible Substrates |
| abstract |
Films with optical transmittance of >80% between 400 and 750 nm and with coefficient of thermal expansion less than 20 ppm/° C. are prepared from aromatic polyamides that are soluble in polar organic solvents yet have glass transition temperatures>300° C. The films are cross-linked in the solid state by heating at elevated temperatures for short periods of time in the presence of multifunctional epoxides. Surprisingly, the optical and thermal properties of the films do not change significantly during the curing process. The temperature required for the crosslinking process to take place can be reduced by the presence of a few free, pendant carboxyl groups along the polyamide backbones. The films are useful as flexible substrates for electronic displays and photovoltaic devices. |
| priorityDate |
2011-07-05^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |