http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9309202-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_eccd894c99fea2d1c0c8735872bb2309 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-544 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-1333 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-54 |
| filingDate | 1992-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2d6cbb71964bcbc5b362d76947347af8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ec3d65f171213869ed358e3c131c37e6 |
| publicationDate | 1993-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-9309202-A1 |
| titleOfInvention | Electrooptical liquid crystal system |
| abstract | The invention relates to an electrooptical system, which between 2 electrode layers contains a PDLC film comprising a liquid crystal mixture forming microdroplets in an optically isotropic, transparent polymer matrix, in which one of the electrode layers forms an active matrix having nonlinear addressing elements integrated with the image point, while the other electrode layer forms the counter electrode, in which one of the refractive indices of the liquid crystal mixture is matched to the refractive index of the polymer matrix, which in one of the two switching states has reduced transmission compared with the other state, characterized in that the precursor of the PDLC film comprises a) 30-85 wt. % of a liquid crystal mixture containing one or more compounds of the formula (I) in which Z?1 and Z2¿, independently of one another, are a single bond, -CH¿2?CH2-, -COO-, -OCO- or -C=C-, α and β, independently of one another, are trans-1,4-cyclohexylene, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 2,3-difluoro-1,4-phenylene or 3,5-difluoro-1,4-phenylene and one of -A?1¿- and -A2- is also pyrimidine-2,5-diyl, pyridine-2,5-diyl or trans-1,3-dioxane-2,5-diyl, X?1 and X2¿, independently of one another, are H or F, Q is CF¿2?, OCF2, C2F4, OC2F4 or a single bond, Y is F, C1 or CN, n is 0, 1 and 3 and R is alkyl having up to 13 C atoms, in which one or two non-adjacent CH2 groups can also be replaced by -0- and/or -CH=CH-; b) 10-68 wt. % of the precursor of the polymer matrix at least comprising a component A containing 0.1-35 wt. % of one or more at least difunctional thiol monomers and/or oligomers, a component B containing 5-95 wt. % of one or more monomers of the ene type, and a component C containing 2-55 wt. % of one or more oligomers of the ene type, and c) 0.1-5 wt. % of a radical photoinitiator with the mass ratios given under a), b) and c) being related to the mass of the precursor of the PDLC film and the mass ratios of the components A, B and C relating to the mass of the precursor of the polymer matrix. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0564869-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110964542-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6685997-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0061684-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5641426-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5830385-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5593615-A |
| priorityDate | 1991-11-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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