http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-940014737-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-3001 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-586 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-42 |
| filingDate | 1993-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1994-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-940014737-A |
| titleOfInvention | Liquid crystal composition |
| abstract | The present invention provides a high voltage maintenance ratio of a liquid crystal device when used as a liquid crystal material for a liquid crystal device, consisting of a liquid crystal mixture of a chiral compound having the adsorption force for the achiral liquid crystal compound and the adsorbent of the following general formula (IV) is less than or equal to that of the achiral compound. And even when purified with an adsorbent or the like, the invention relates to a liquid crystal composition in which the spiral pitch hardly changes:n n n n n n n n Wherein 6-membered rings A ', B', C 'and D' are each independently trans-1,4-cyclohexylene, 1-cyclohexene-1,4-diyl or 1,4-phenylene, g and h and i are each 0 or 1, (g + h + i) is 1 or more, and X ', Y' and Z 'are each independently a single bond, -CH 2 -CH 2- , -CH = CH -Or -C = C-, R 7 is C m H 2m + 1- , C n H 2n-1 -or C n H 2n + 1 OC k H 22k -and R 8 is C m H 2m + 1 -, C m H 2m + 1 O-, F, CHF 2 O- or CF 3 O-, n and m are each independently an integer from 1 to 18, k is an integer from 1 to 17, n + k Is an integer from 2 to 18 and is at least one single bond of X ', Y' and Z ', ring D' is 1,4-phenylene and R 8 is F, CHF 2 O- or CF 3 O- For R 8 the H atom in the ortho position can be replaced by an F atom, g is 1 and ring B 'or C' is 1,4-phenylene and the H atom in the side chain position of the ring can be replaced by an F atom.n n n The liquid crystal composition is a highly reliable liquid crystal material having a high voltage maintenance ratio without extending the helical pitch even when purified with an adsorbent or the like. |
| priorityDate | 1992-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.