http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6805921-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_696ca0ae93d5cf5a686273601361781f |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2323-00 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-586 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-58 |
| filingDate | 2002-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2004-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_76b81032a24faf697b004b22236f688a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1bd1a39ff54f1fb4074797a22a73a272 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1b6e2c5dcc3af899579065f695b1f451 |
| publicationDate | 2004-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-6805921-B2 |
| titleOfInvention | Optically active compound and nematic liquid crystal composition containing the compound |
| abstract | An optically active compound of the following general formula (1),wherein A is -C=C- or -COO-, each of R1 and R2 is independently CnH2n+1-, (C2H5)2CHCH2C*H(CH3)OOC-, CmH2m+1C*H(CH3)OOC- or C6H5C*H(CH3)OOC- in which n is an integer of 2 to 5, m is an integer of 5 to 9, C6H5- is phenyl group, and C* is an asymmetric carbon, provided that there is no case where R1 and R2 are together CnH2n+1- or C6H5C*H(CH3)OOC- and that when both R1 and R2 are CmH2m+1C*H(CH3)OOC-, m in CmH2m+1C*H(CH3)OOC- represented by R1 and m in CmH2m+1C*H(CH3)OOC- represented by R2 may be different integers.The optically active compound of the present invention is excellently valuable as a chiral dopant since it has properties that its helical twisting power (HTP) is at least 9, that a helical pitch induced decreases with an increase in temperature and further that its birefringence (Deltan) is large. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005260358-A1 |
| priorityDate | 2001-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 144.