Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
107 words
Compounds of the general formula : wherein the symbols X stand for carbon atom bonded with two hydrogen atoms (-CH 2 - group) and the symbols Z stand for oxygen atom or the symbols X stand for oxygen atom and the symbols Z stand for carbon atom bonded with two hydrogen atoms (-CH 2 - group), m is an integer of 1 to 2, R represents an alkyl (H 2n+1 C n -) or a 4-alkylphenyl (H 2n+1 C n C 6 H 4 -) group, the term alkyl group signifies an alkyl chain containing 1 to 15 carbon atoms and the chain is straight or branched.
Claim 2
Dependent Claim
107 words
Compounds of the general formula : wherein the symbols X stand for carbon atom bonded with two hydrogen atoms (-CH 2 - group) and the symbols Z stand for oxygen atom or the symbols X stand for oxygen atom and the symbols Z stand for carbon atom bonded with two hydrogen atoms (-CH 2 - group), m is an integer of 1 to 2, R represents an alkyl (H 2n+1 C n -) or a 4-alkylphenyl (H 2n+1 C n C 6 H 4 -) group, the term alkyl group signifies an alkyl chain containing 1 to 15 carbon atoms and the chain is straight or branched.
Claim 3
Dependent Claim
45 words
Compounds according to claim 1 wherein the symbols X stand for carbon atom bonded with two hydrogen atoms (-CH 2 - group) and the symbols Z stand for oxygen atom, m is the integer of 1 and R represents an alkyl or an alkylphenyl group.
Claim 4
Dependent Claim
12 words
Compounds according to claim 2, wherein R represents a normal alkyl group.
Claim 5
Dependent Claim
31 words
Compounds according to claim 2, wherein R represents a branched alkyl group, C 2 H 5 -CH(CH 3 )-(CH 2 ) k , k is an integer of 1 to 3.
Claim 6
Dependent Claim
15 words
Compounds according to anyone of claims 1 to 4 as components in liquid crystalline admixtures.
Claim 7
Dependent Claim
24 words
A liquid crystalline admixture containing at least two components, wherein at least one component is of the formula I as claimed in claim 1.
Claim 8
Dependent Claim
72 words
A liquid crystalline admixture according to claim 6, which contains one or more compounds of formula I defined in claim 1 and one or more compounds of the general formula: and/or and/or and/or and/or and/or and/or and/or and/or and/or wherein the symbols p and r are an integer of 1 to 2, Y represents N0 2 or CN group, R represents an alkyl, an alkoxy, an alkylcarboxy, an alkoxycarboxy, an alkylphenyl group.
Claim 9
Dependent Claim
52 words
A liquid crystalline admixture according to claim 7, which contains 50 to 90 % by weight compounds of the formulae II to XI defined in claim 7, wherein R 1 represents an alkyl or an alkoxy group having at least 5 carbon atoms in chain, and p is the integer of 1.
Claim 10
Dependent Claim
19 words
A liquid crystalline admixture according to claim 6, which contains an optically active compound and/or a pleo- chroic dye.
Claim 11
Dependent Claim
17 words
A liquid crystalline admixture containing as components only compounds of the formula I according to claim 2.
Claim 12
Dependent Claim
66 words
A liquid crystalline admixture according to claim 10 containing compounds of formula I, wherein R represents an alkyl group, in which the components are selected in such a way that one or several compounds with an alkyl group containing from 2 to 6 carbon atoms and one or several compounds with an alkyl group containing from 8 to 12 carbon atoms are simultaneously in the admixture.
Claim 13
Dependent Claim
16 words
The use of the compounds of the formula I defined in claim 1 for electro-optical purposes.