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Inventor:
Krause; Joachim
Address:
Dieburg, DE
No. of patents:
123
Patents:


1 2 3










Patent Number Title Of Patent Date Issued
7604851 Liquid-crystalline compounds October 20, 2009
Liquid-crystalline compounds of the formula I ##STR00001## in which R.sup.1, A.sup.1, A.sup.2, Z.sup.1, Z.sup.2, X, a, b, L.sup.1, L.sup.2 and L.sup.3 are as defined herein, and to liquid-crystalline media comprising at least one compound of the formula I and to electro-optical disp
7425356 Chiral compounds September 16, 2008
The invention relates to chiral compounds of formula I wherein X.sup.1, X.sup.2, X.sup.1, X.sup.2, x.sup.1, x.sup.2, y.sup.1, y.sup.2, B, C, U.sup.1, U.sup.2, V.sup.1, V.sup.2, W.sup.1 and W.sup.2 have the meaning given in claim 1, to liquid crystal mixtures comprising at least one c
7318950 Chiral compounds II January 15, 2008
The invention relates to chiral compounds of formula (I) R.sup.1--X.sup.1-(A.sup.1-Z.sup.1).sub.m-G-(Z.sup.2-A.sup.2).sub.n-X.sup.- 2--R.sup.2, wherein R.sup.1, R.sup.2, X.sup.1, X.sup.2, A.sup.1, A.sup.2, Z.sup.1, Z.sup.2, G, m and n have the meaning given in claim 1, to liquid cryst
7316830 Liquid-crystalline phenol esters January 8, 2008
The invention relates to liquid-crystalline phenol esters of the formula I ##STR00001## in which R, A.sup.1, Z.sup.1, m, L and Y are as defined in Claim 1, to liquid-crystalline media comprising at least one phenol ester of the formula I, and to electro-optical displays containing such
7250199 Phenylcyclohexanes and a liquid-crystalline medium July 31, 2007
Novel phenylcyclohexanes of the formula I ##STR00001## in which n is 0 to 7, Q.sup.1 and Q.sup.2 are H, or one of these radicals is alternatively CH.sub.3, r is 0, 1, 2, 3, 4 or 5, A is trans-1,4-cyclohexylene, 1,4-phenylene, 3-fluoro-1,4-phenylene or a single bond, X is F, Cl, --CF
7250198 Liquid-crystalline compounds July 31, 2007
Liquid-crystalline compounds of the formula I ##STR00001## in which R.sup.1, A.sup.1, A.sup.2, Z.sup.1, Z.sup.2, X, a, b, L.sup.1, L.sup.2 and L.sup.3 are as defined herein, and to liquid-crystalline media comprising at least one compound of the formula I and to electro-optical disp
7223450 Chiral compounds May 29, 2007
The invention relates to chiral compounds of formula I wherein X.sup.1,X.sup.2,X.sup.1,X.sup.2,x.sup.1,x.sup.2,y.sup.1,y.sup.2,B,C,U.sup- .1,U.sup.2,V.sup.1,V.sup.2,W.sup.1 and W.sup.2 have the meaning given in claim 1, to liquid crystal mixtures comprising at least one chiral compoun
7179511 Liquid-crystalline phenol esters February 20, 2007
The invention relates to liquid-crystalline phenol esters of the formula I ##STR00001## in which R, A.sup.1, Z.sup.1, m, L and Y are as defined in Claim 1, to liquid-crystalline media comprising at least one phenol ester of the formula I, and to electro-optical displays containing suc
7135210 Liquid crystal compounds November 14, 2006
The invention relates to liquid crystal compounds of formula (I), where X.sup.1, X.sup.2, X.sup.3, Z.sup.1, Z.sup.2, L.sup.1, L.sup.2, L.sup.3, L.sup.4, L.sup.5, L.sup.6, L.sup.7, L.sup.8, L.sup.9, L.sup.10, L.sup.11 and a have the meanings given in claim 1, and liquid crystal media
7074462 Ester compounds and their use in liquid crystalline media July 11, 2006
The invention relates to compounds of the formula I and to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it comprises one or more compounds of the general formula I ##STR00001## in which R, A.sup.1, A.sup.2
7060331 Chiral compounds 1 June 13, 2006
The invention relates to chiral compounds of formula (I) wherein R.sup.1, R.sup.2, A.sup.1, A.sup.2, X.sup.1, X.sup.2, Z.sup.3 and m have the meaning give in claim 1, to liquid crystalline mixtures comprising at least one chiral compound of formula (I), to chiral linear or crosslinked
7041345 Chiral compounds III May 9, 2006
The invention relates to chiral compounds of formula (I) wherein Y.sup.1, Y.sup.2, Y.sup.3, Y.sup.4, X.sup.1, X.sup.2, X.sup.3 and X.sup.4 have the meaning given in claim 1, to liquid crystalline mixtures comprising at least one chiral compound of formula (I), to chiral linear or crossli
7029730 CF.sub.2O-bridged, axially substituted cyclohexane derivatives April 18, 2006
The invention relates to CF.sub.2O-bridged cyclohexane derivatives, in particular compounds of formula (I), R1-(-A1-Z1-)k1-Q-CF2O-A2-(-Z3-A3-)K3-R2, wherein Q represents group (a); W.sup.1, W.sup.2 represent --CH.sub.2-- and/or --O-- independendy from each other, X.sup.1, X.sup.2, X.
6955837 Phenylcyclohexanes and a liquid-crystalline medium October 18, 2005
Novel phenylcyclohexanes of the formula I ##STR1##in which n is 0 to 7, Q.sup.1 and Q.sup.2 are H, or one of these radicals is alternatively CH.sub.3, r is 0, 1, 2, 3, 4 or 5, A is trans-1,4-cyclohexylene, 1,4-phenylene, 3-fluoro-1,4-phenylene or a single bond, X is F, Cl, --CF.sub.3
6780477 Liquid crystalline compounds August 24, 2004
The invention relates to liquid-crystalline compounds of the formula I ##STR1##in which R.sup.1, R.sup.2, A.sup.1, A.sup.2, A.sup.3, A.sup.4, Z.sup.1, Z.sup.2, a, b and c are as defined in claim 1, and to liquid-crystalline media comprising at least compound of the formula I and to el
6723866 Liquid-crystalline compounds April 20, 2004
The invention relates to liquid-crystalline compounds of the formula I ##STR1##in which R.sup.1, A.sup.1, A.sup.2, Z.sup.1, Z.sup.2, a, b, L.sup.1, L.sup.2 and L.sup.3 are as defined in claim 1, and to liquid-crystalline media comprising at least compound of the formula I and to elect
6706338 Liquid-crystalline compounds March 16, 2004
The invention relates to liquid-crystalline compounds of the formula I, ##STR1##and to liquid-crystalline media comprising at least one compound of the formula I and to electro-optical displays containing such a liquid-crystalline medium.
6677002 Phenylcyclohexanes and a liquid-crystalline medium January 13, 2004
Novel phenylcyclohexanes of the formula I: ##STR1##in which n is 0 to 7, Q.sup.1 and Q.sup.2 are H, or one of these radicals is alternatively CH.sub.3, r is 0, 1, 2, 3, 4 or 5, A is trans-1,4-cyclohexylene, 1,4-phenylene, 3-fluoro-1,4-phenylene or a single bond, X is F, Cl, --CF.sub.
6635318 Tetracyclic and pentacyclic compounds, and their use in liquid-crystalline media October 21, 2003
Disclosed is a tetracyclic compound of the formula I ##STR1##in which R.sup.1, R.sup.2 are each, independently of one another, an alkyl or alkenyl radical having up to 15 carbon atoms which is unsubstituted, monosubstituted by CN or CF.sub.3, or monosubstituted by halogen. One or
6630210 Pentafluorosulfuranylbenzene derivatives October 7, 2003
The invention relates to pentafluorosulfuranylbenzene derivatives of the formula I ##STR1##in which R.sup.1, A.sup.1, A.sup.2, Z.sup.1, L.sup.1, L.sup.2, L.sup.3 and n are as defined herein and to the use thereof in liquid-crystalline media.
6620468 Dioxane derivatives, and liquid-crystalline medium September 16, 2003
The invention relates to novel dioxane derivatives of the formula Iin which R.sup.1, R.sup.2, A.sup.1, A.sup.2, A.sup.3, A.sup.4, Z.sup.1, Z.sup.2, m and n are as defined herein, to their use as components of liquid-crystalline media, and to liquid-crystal and electro-optical display ele
6569505 Liquid crystal compounds, liquid crystal medium and liquid crystal display May 27, 2003
The instant invention relates to liquid crystal media comprising a strongly dielectrically positive component A, preferably comprising isothiocyanate compounds, most preferably compounds of formula I, as given in the text, and a further dielectrically positive component B, preferably com
6551666 Cyclohexane derivatives and liquid-crystalline medium April 22, 2003
The invention relates to cyclohexane derivatives of the formula I ##STR1##in which n, m, p, R.sup.1, X.sup.1, X.sup.2, Z.sup.1, Z.sup.2, Z.sup.3, A.sup.1 A.sup.2 and Y are as defined above.
6541082 Liquid-crystalline medium April 1, 2003
The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it comprises one or more compounds of the general formula I ##STR1##in which R.sup.1 and R.sup.2 are as defined herein.
6541081 Ester compounds and their use in liquid-crystalline media April 1, 2003
The invention relates to esters of the formula I and to a liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it comprises one or more compounds of the general formula I ##STR1##in which R, A.sup.1, Z.sup.1, L.s
6475595 Fluorocyclohexene derivatives, and liquid-crystalline medium November 5, 2002
Fluorocyclohexene derivatives of formula Iin which n, m, p, R.sup.1, R.sup.2, Z.sup.1, Z.sup.2, Z.sup.3, Z.sup.4, A.sup.1, A.sup.2, A.sup.3, A and B are as defined herein, are suitable for use in liquid crystal mediums. Also, difluorocyclohexanes of formula IIIwhere R.sup.3, A*, Z.sup.6, A.s
6468608 Vinylene and ethyl compounds October 22, 2002
Vinyldene and ethyl compounds of the formula I ##STR1##in which R.sup.1, R.sup.2, A.sup.1, Z.sup.1, Z.sup.2, Z.sup.3, m, n and R are as defined herein, where at least one of Z.sup.1 to Z.sup.3 is ##STR2##wherein L.sup.1 to L.sup.6 are each H or F and at least one of L.sup.1 to L.sup.
6284154 Phenylcyclohexanes and a liquid-crystalline medium September 4, 2001
Novel phenylcyclohexanes of the formula I ##STR1##in which n is 0 to 7, Q.sup.1 and Q.sup.2 are H, or one of these radicals is alternatively CH.sub.3, r is 0, 1, 2, 3, 4 or 5, A is trans-1,4-cyclohexylene, 1,4-phenylene, 3-fluoro-1,4-phenylene or a single bond, X is F, Cl, --CF.sub.3
6146719 Liquid-crystalline compounds, and liquid-crystalline medium November 14, 2000
A liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, including one or more compounds of the general formula I: ##STR1## in which, R is H, an alkyl or alkenyl radical having 1 or 2 to 15 carbon atoms respectively which is unsubstitut
6143199 Fluorinated biphenylcyclohexanes, and liquid-crystalline medium November 7, 2000
Fluorinated biphenylcyclohexanes of the formula I ##STR1## in which R, X, Z, L.sup.1, L.sup.2, L.sup.3 and n are as defined herein, are suitable as components of liquid-crystalline media.
6139773 Cyclohexane derivatives, and liquid-crystalline medium October 31, 2000
The invention relates to cyclohexane derivatives of the formula I in which n, m, p, R.sup.1, X.sup.1, X.sup.2, X.sup.3, Z.sup.1, Z.sup.2, Z.sup.3, A.sup.1, A.sup.2 and Y are as defined herein.
6137576 Optical transducers based on liquid crystalline phases October 24, 2000
Optical transducers for measuring a contaminant in a gas are disclosed, whereby said contaminant interacts with a liquid crystalline phase as a sensing element in a flow cell. According to the invention nematic crystalline phases on a orientation layer are used. Means are provided to
6057006 Fluorocyclohexane derivatives, and liquid-crystalline medium May 2, 2000
The invention relates to fluorocyclohexane derivatives of the formula I ##STR1## in which R.sup.1, Z.sup.1, Z.sup.2, L.sup.1, L.sup.2, L.sup.3 and X are as defined as below:X is alkyl or alkoxy having 1 to 10 carbon atoms which is unsubstituted or substituted by halogen, alkenyl or a
6056895 Fluorocyclohexane derivatives, and liquid-crystalline medium May 2, 2000
The invention relates to fluorocyclohexane derivatives of the formula I ##STR1## in which n, m, R.sup.1, X.sup.1, X.sup.2, Z.sup.1, Z.sup.2, A.sup.1 and Y are as defined above.
5997766 Halovinyloxy-substituted dioxane derivatives December 7, 1999
Halovinyloxy-substituted dioxane derivatives of the formula I in which R, X, Y and n are as defined in claim 1, are useful as components of liquid-crystalline media, and in liquid-crystal and electro-optical display elements which contain the novel liquid-crystalline media.
5968410 Fluorocyclohexane derivatives, and liquid-crystalline medium October 19, 1999
The invention relates to fluorocyclohexane derivatives of the formula I ##STR1## in which R.sup.1, R.sup.2, y.sup.1, y.sup.2, X.sup.1, X.sup.2, A.sup.1, Z.sup.1, Z.sup.2, Z.sup.3, n, m, p and q are as defined above.
5961880 1,3-dioxane derivatives having axial fluorine substitution October 5, 1999
1,3-Dioxane compounds of the formula Iin whichW is ##STR1## and R.sup.1, R.sup.2, A.sup.1, A.sup.2, Z.sup.1, Z.sup.2, m, n, ##STR2## n.sub.1, n.sup.2, n.sub.3, n.sub.4, n.sub.5, n.sub.6, Z.sup.3 and Z.sup.4 are as defined herein,are suitable as components of liquid-crystalline
5932138 Benzene derivatives, and liquid-crystalline medium August 3, 1999
The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it contains one or more compounds of the general formula I ##STR1## in which R, A.sup.1, A.sup.2, Z.sup.1, Z.sup.2, X, L and m are as de
5911912 Halovinyl ethers June 15, 1999
Halovinyl ethers of the general formula I ##STR1## in which R, A.sup.1, A.sup.2, A.sup.3, Z.sup.1, Z.sup.2, X.sup.1, X.sup.2, l, m and n are as defined herein are suitable as components of liquid-crystalline media.
5891360 Phenylcyclohexanes and a liquid-crystalline medium April 6, 1999
Novel phenylcyclohexanes of the formula I ##STR1## in which n is 0 to 7, Q.sup.1 and Q.sup.2 are H, or one of these radicals is alternatively CH.sub.3, r is 0, 1, 2, 3, 4 or 5, A is trans-1,4-cyclohexylene, 1,4-phenylene, 3-fluoro-1,4-phenylene or a single bond, X is F, Cl, --CF.
5807500 Fluorinated biphenylcyclohexanes, and liquid-crystalline medium September 15, 1998
Fluorinated biphenylcyclohexanes of the formula I ##STR1## in which R, X, Z, L.sup.1, L.sup.2, L.sup.3 and n are as defined herein, are suitable as components of liquid-crystalline media.
5800735 1, 3-dioxanes, and liquid-crystalline medium September 1, 1998
1,3-Dioxanes of the formula I ##STR1## in which R, X, L and ##STR2## are as defined below, are suitable as components of liquid-crystalline media.
5723682 Difluorovinyl ethers March 3, 1998
The invention relates to difluorovinyl ethers of the general formula I ##STR1## in which R, A, X and m are as defined in claim 1, and to the use of these compounds as components of liquid-crystalline media, and to liquid-crystal and electro-optical display elements which contain the
5718840 Benzene derivatives, and liquid-crystalline medium February 17, 1998
The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it contains one or more compounds of the general formula I ##STR1## in which R, A.sup.1, A.sup.2, Z.sup.1, Z.sup.2, X, L and m are as de
5641429 Fluorobenzene derivatives and liquid-crystalline medium June 24, 1997
Fluorobenzene derivatives of formula I, ##STR1## in which R an alkenyl radical as further defined in the specification,A.sup.1 and A.sup.2 are a trans-1,4-cyclohexylene radical, 1,4-phenylene radical or other cyclic structure as further defined in the specification,Z.sup.1 and Z.sup.2 ar
5536442 Fluorinated liquid crystal compounds and liquid crystal medium containing same July 16, 1996
The invention relates to liquid crystal compounds having a terminal structure in accordance with formula 1, 2, 3 or 4:wherein A.sup.2, A.sup.3, X.sup.1 and X.sup.2 and are defined herein. The invention further relates liquid crystal phases containing the above components as well as elect
5494606 1,3-dioxane derivatives, and liquid-crystalline medium February 27, 1996
Novel 1,3-dioxane derivatives of the formula I ##STR1## in which Q is CHalogen.sub.1 H.sub.3-1, CnH.sub.2n+1 --O-- or C.sub.2 H.sub.2n+1 --CH.dbd.CH--, whereHalogen is F or Cl,l is 1, 2 or 3 andn is 0 to 5,r is 0 to 5,X=X'=0 and Y=Y'=CH.sub.2 orX=X'=CH.sub.2 and Y=Y'=O,Z.sup.1 and Z.sup.
5487845 Fluorobenzene derivatives and liquid-crystalline medium January 30, 1996
Fluorobenzene derivatives of the formula I, ##STR1## R, A1, A2, S1, 22, L, m, Y, Q are as defined herein.
5478496 Media containing thiazole derivatives and thiadiazole derivatives and having a smectic liquid-cr December 26, 1995
The invention relates to the use of chiral and/or achiral compounds, containing at least one structural element from the group comprisingthiazole-2,4-diylthiazole-2,5-diyl1,2,4-thiadiazole-2,5-diyl1,2,4-thiadiazole-3,5-diylas components of media having a smectic liquid-crystalline phase.
5458805 Phenylcyclohexanes and a liquid-crystalline medium October 17, 1995
Novel phenylcyclohexanes of the formula I ##STR1## in which n is 0 to 7, Q.sup.1 and Q.sup.2 are H, or one of these radicals is alternatively CH.sub.3, r is 0, 1, 2, 3, 4 or 5, A is trans-1,4-cyclohexylene, 1,4-phenylene, 3-fluoro-1,4-phenylene or a single bond, X is F, Cl, --CF.
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