Liquid crystal silanes
First Claim
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1. A liquid crystal compound of the general formula ##STR48## wherein y is an integer having a value of from 1 to 3;
- x is an integer having a value of from 0 to 2;
the sum of x and y is 3 M is methoxy, ethoxy, chloro or dimethylamino;
R'"'"' is hydrogen, methyl or ethyl;
G is alkylene having from 2 to 4 carbon atoms, or arylene or aralkylene having from 6 to 8 carbon atoms;
E is --O-- or --NH--; and
Z is a group of the formula;
##STR49## wherein Rb is an unsubstituted or substituted phenyl, fluorenyl, fluorenonyl or anthracenyl group;
Rc is an unsubstituted or substituted phenyl group;
wherein the substituents on said groups can be chloro, nitro, methylthio, bromo, iodo, tertiary amino, acyl having from 2 to 12 carbon atoms, dialkylamino in which the alkyl group has from 1 to 5 carbon atoms, alkoxy having from 1 to 6 carbon atoms, alkyl having from 1 to 10 carbon atoms, cyano, esters which may contain substituted aryl or aralkyl moieties of from 1 to 12 carbon atoms or carbonates containing an alkyl group of from 1 to 10 carbon atoms.
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Abstract
Silicon based liquid crystal compounds produced by the reaction of an isocyanatosilane with a Schiff base, aromatic ester, azo compound or cholesteryl compound. The liquid crystals are useful in those applications in which liquid crystals are currently used and they also have the capability of being firmly chemically bonded to certain substrates, such as glass, thus avoiding the need for hermetic sealing.
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Citations
14 Claims
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1. A liquid crystal compound of the general formula ##STR48## wherein y is an integer having a value of from 1 to 3;
- x is an integer having a value of from 0 to 2;
the sum of x and y is 3 M is methoxy, ethoxy, chloro or dimethylamino;
R'"'"' is hydrogen, methyl or ethyl;
G is alkylene having from 2 to 4 carbon atoms, or arylene or aralkylene having from 6 to 8 carbon atoms;
E is --O-- or --NH--; and
Z is a group of the formula;
##STR49## wherein Rb is an unsubstituted or substituted phenyl, fluorenyl, fluorenonyl or anthracenyl group;
Rc is an unsubstituted or substituted phenyl group;
wherein the substituents on said groups can be chloro, nitro, methylthio, bromo, iodo, tertiary amino, acyl having from 2 to 12 carbon atoms, dialkylamino in which the alkyl group has from 1 to 5 carbon atoms, alkoxy having from 1 to 6 carbon atoms, alkyl having from 1 to 10 carbon atoms, cyano, esters which may contain substituted aryl or aralkyl moieties of from 1 to 12 carbon atoms or carbonates containing an alkyl group of from 1 to 10 carbon atoms. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- x is an integer having a value of from 0 to 2;
Specification
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Current AssigneeUnion Carbide Corporation (Dow, Inc.)
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Original AssigneeUnion Carbide Corporation (Dow, Inc.)
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InventorsWilliams, Thomas C., Totten, George E.
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Primary Examiner(s)Gron, Teddy S.
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Application NumberUS06/122,482Time in Patent Office728 DaysField of Search252/299.4, 252/408, 252/299.64, 252/299.67, 252/299.68, 252/299.7, 252/299.62, 252/299.63, 350/340, 350/341, 350/350 R, 350/350 S, 556/419, 556/420, 556/421, 428/1US Class Current556/420CPC Class CodesC07F 7/127 by reactions not affecting ...C07F 7/1804 Compounds having Si-O-C lin...C07J 51/00 Normal steroids with unmodi...C09K 19/406 containing silicon
