| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_43e3f84cf200886abae714a643e8f83f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5f18d0b9ca3490c580402f93f0eb18a8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e3bdbaad19579332f26b2b9f43eef04e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7f4d099429d878afbd8581ebb3e65d74 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F222-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F212-08 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-13 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-10 |
| filingDate |
2006-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5968934cb83eadf9748b59e8d121d13a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_abfd77623bb4df4457a38282081251c4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f42df4079546dd8987eab5b78f161e19
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2b3a18d1704517fc4b9f4bda100c0655 |
| publicationDate |
2010-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2010168363-A1 |
| titleOfInvention |
Low Birefringent Copolymers |
| abstract |
The low birefringent material of the present invention is, for example, an acrylic copolymer including a lactone ring structure which can provide a positive retardation and a structural unit which can provide a negative retardation, the acrylic copolymer satisfying following conditions that: (A) the copolymer has a glass transition temperature (Tg) of 100° C. or higher; (B) a film comprising the copolymer has a total light transmittance of 85% or higher; and (C) a retardation per 100 μm of thickness in an in-plane direction of the film is 10 nm or lower, and a difference between a retardation per 100 μm of thickness in an in-plane direction of the film after the film is drawn by 1.5 times and a retardation per 100 μm of thickness in an in-plane direction of the film before the film is drawn is 20 nm or lower. The low birefringent material of the present invention has excellent transparency and heat resistance, also has other desired properties including mechanical strength and forming processability, has low coloration properties when no nitrogen atom is contained, and particularly has high optical isotropy. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10126473-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10203430-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2015362647-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10139525-B2 |
| priorityDate |
2005-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |