http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H11236458-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B27-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-1333 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-04 |
| filingDate | 1998-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cb1c93733d0131c1c6ae9b534471aef8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_28e79b970d40a713f3241e938f26ed52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8f0c9d9ecdda4b8acbb29236342e2cb2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9a0cb27f052a761aa794c47ce67d8675 |
| publicationDate | 1999-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H11236458-A |
| titleOfInvention | Optical film or sheet |
| abstract | (57) [Problem] To provide an optical film or sheet excellent in heat resistance, and excellent in transparency and optical characteristics. SOLUTION: The following general formula [I] [Wherein R 1 , R 2 , R 3 and R 4 are the same or different and represent a hydrogen atom or a methyl group, and X has 5 to 1 carbon atoms. A cycloalkylene group having 0, an aralkylene group having 7 to 15 carbon atoms or a haloalkylene group having 1 to 5 carbon atoms, However, when R 1 , R 2 , R 3 and R 4 are hydrogen atoms, X is not a cycloalkylene group. An optical film or sheet comprising a polycarbonate (co) polymer containing the repeating unit represented by the formula (1) in a proportion exceeding 30 mol%, a film thickness of 50 to 500 μm, and a retardation (Re) of 10 nm or less. |
| priorityDate | 1993-08-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.