http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0609566-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_52a65b677bbedbe7bf090dd556a7cc43 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-586 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-3001 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-50 |
| filingDate | 1993-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ef26516465a8f3c13349e96821ff0647 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be2ae5d4af2689d434f980e065f0693c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_86c9ea023767c4a7da08b1e238ba0f46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_688833a383beb4b10732df9f9eb56dfc |
| publicationDate | 1994-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0609566-A1 |
| titleOfInvention | A liquid crystal composition |
| abstract | Liquid crystal composition having a high voltage-holding ratio of liquid crystal element and being almost unchanged in the helical pitch even when subjected to purification treatment with adsorbents or the like, n which composition is a liquid crystal mixture of an achiral liquid crystal compound of the following formula (IV) with a chiral compound having an adsorptivity to adsorbents, not greater than that of the achiral compound:n n wherein A', B', C' and D' each independently are trans-1,4-cyclohexylene, 1-cyclohexene-1,4-diyl or 1,4-phenylene; g, h and i each are 0 or 1; (g+h+i)≧1 ; X', Y' and Z' each independently are a single bond, -CH₂-CH₂-, -CH=CH- or -C≡C-; R⁷ is C n H 2n+1 -, C n H 2n-1 or C n H 2n+1 OC k H 2k -; R⁸ is C m H 2m+1 -, C m H 2m+1 O-, F, CHF₂O or CF₃O-; n and m each independently are an integer of 1 to 18; k is an integer of 1 to 17; (n+k) is 2 to 18; at least one of X', Y' and Z' is single bond; when ring D' is 1,4-phenylene and R⁸ is F, CHF₂O- or CF₃O-, then H at ortho position as regards R⁸ may be replaced by F; and "Then" g is 1 and ring B' or C' is 1,4-phenylene, when H at the lateral position of the ring may be replaced by F. n It is preferred in order to exhibit a high voltage-holding ratio that the achiral liquid crystal compound have as a polar group, a functional group (such as F and CF 3 O-) limited to a halogen atom such as F, Cℓ, etc. or an ether bond, besides the C-C bond and the C-H bond. n As to chiral compounds those having a functional group restricted to only a halogen atom or an ether bond are preferred, in the same aspect, chiral agent compounds having a polar group of -CN group as a fuctional group are unsuitable. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2016198143-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103224798-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103224798-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0806466-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7976912-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7462297-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8057867-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1845147-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1845147-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2004037948-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0806466-A3 |
| priorityDate | 1992-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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