http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1315783-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6bd4720aefb28835b9bfc5ff805f891b |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2019-3422 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2019-186 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-3402 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-3059 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-13 |
| filingDate | 2001-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5419419c5379435e692a295c54832e79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d548a3348bbb39f996a29858e82f4c76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6bbf79e3429271f4785654931301fc6a |
| publicationDate | 2003-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1315783-A2 |
| titleOfInvention | Polar tolane liquid crystals |
| abstract | A new class of liquid crystal compounds is based on tolane and bis-tolane structures: (I), in which X is a polar group such as F (fluoro), CN (cyano), OCF3 (trifluoromethoxy), or NCS (isothiocyanate) at least one of the pairs of sites Y1 and Y2, Z1 and Z2, and for the bis-tolane derivatives, A1 and A2 are fluoro groups. T1 for the tolane derivatives is always a triple bond. For the bis-tolane derivatives, T1 and T2 are either both triple bonds or one of the two groups is a double bond with and the other remains a triple bond. Rn or Rm may be an alkyl group having the general formula CnH2n+1, an alkenyl group having the general formula CnH2n-1, an alkoxy group having the general formula OCnH2n+1, or an alkenoxy group having the general formula -OCnH2n-1. Additionally, for the tolane compounds, Rn may be a cyclohexyl substituent: (II), or a dioxane substituent: (III), in which Rx is an alkyl group having the general formula general formula CxH2x+1, an alkenyl group having the general formula CxH2x-1, an alkoxy group having the general formula OCxH2x+1, or an alkenoxy group having the general formula OCxH2x-1. These compounds exhibit useful nematic ranges and melting points. Also disclosed are eutectic mixtures including these compounds. |
| priorityDate | 2000-09-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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