http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002082202-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dbdfa36b677f4ef61245ca725011e221 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F12-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-04 |
| filingDate | 2000-09-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bb3f26f828a374206c95b68058bb530b |
| publicationDate | 2002-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2002082202-A |
| titleOfInvention | Optical resin material |
| abstract | (57) [Summary] [PROBLEMS] While maintaining transparency, rigidity (high elastic modulus) and low water absorption, which are the excellent features of hydrogenated styrene resin material, Provide an optical resin material with further improved birefringence performance. An optical resin material comprising a partially hydrogenated styrene-based polymer and having the following features (a) to (f): (A) The content of the styrene bond unit and the hydrogenated styrene bond unit in the partially hydrogenated styrene polymer is 80% by weight or more. (B) The ratio of the hydrogenation rate of the aromatic ring contained in the partially hydrogenated styrene polymer is The following range, fully hydrogenated aromatic rings 85-96 Mol%, unhydrogenated aromatic ring 15-4 mol%, partially hydrogenated aromatic ring 4-0 mol% (c) Total light transmittance is 85% or more (d) Glass transition temperature is 100 ° C or more (e) Elastic modulus is 1 5000 kg / cm 2 or more (f) 0.1% by weight of water absorption Less than. According to the present invention, the birefringence of a molded article is made substantially zero while maintaining performance such as transparency, rigidity (high elastic modulus), and low water absorption. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2289951-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101678675-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011057981-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102002137-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20130095693-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2015071773-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-03076477-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9051396-B2 |
| priorityDate | 2000-09-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 103.