摘要:
Thermotropic liquid crystalline polymers are produced by the reaction of a polyester made from an aromatic dicarboxylic acid and a diol, one or more hydroxycarboxylic acids, a stoichiometric excess of an aromatic diol, and a carboxylic acid anhydride. Also disclosed are novel liquid crystalline polymers that may be produced by this process. These liquid crystalline polymers are useful as molding resins and shaped articles thereof are produced. In particular, the articles include films, sheets, containers and portions thereof comprising these LCPs.
摘要:
The invention relates to chiral photoisomerizable compounds of formula (I) wherein X1, X2, X3, X4, X5 and X6 have the meanings given in claim 1, to liquid crystalline mixtures and polymers containing them, and to the use of chiral photoisomerizable compounds, liquid crystalline mixtures and polymers containing them in optical and electrooptical devices like liquid crystal displays or projection systems, in optical elements like polarizers, retardation films, compensators, colour filters or holographic elements, in liquid crystal pigments and coloured films or coatings for decorative or security applications, cosmetic and pharmaceutical compositions, in nonlinear optics and optical information storage.
摘要:
The present invention relates to oxabicyclooctanes of the general formula I. 1 in which R1, R2, A1, A2, A3, A4, L1, L2, n1, n2 and n3 have the meanings specified in claim 1, and to their use in liquid-crystalline media.
摘要:
Compounds of the formula (I), liquid-crystal mixtures comprising these compounds, and their use in liquid-crystal displays: 1 in which R1 is H, F, CF3, OCF3, OCF2H, OCFH2, an alkyl radical or alkyloxy radical or an alkenyl radical or alkenyloxy radical; R2 is H, an alkyl radical or alkyloxy radical or an alkenyl radical or alkenyloxy radical M1 is nullC(nullO)Onull, nullOC(nullO)null, nullCH2Onull, nullOCH2null, nullOCF2null, nullCF2Onull, nullCnullCnull, nullCH2CH2null, nullCF2CF2null, nullCFnullCFC(nullO)Onull or a single bond M2 is nullC(nullO)Onull, nullOC(nullO)null, nullCH2Onull, nullOCH2null, nullCH2CH2null, nullCF2CF2null or a single bond; A1 and A2 are null-1,4-diyl, unsubstituted or mono- or disubstituted by F; where null is: phenylene, cyclohexane,1-cyclohexene or 1,3-dioxane-2,5-diyl; m and n are zero or 1; mnullnnull0 or 1 L1, L2, L3, L4 and L5 are H or F.
摘要:
An object of the present invention is to provide a polymerizable liquid crystal composition incorporating a polymerizable liquid crystal compound which displays a low nematic phase temperature, displays excellent compatibility with other polymerizable liquid crystal compounds, and furthermore yields a product following polymerization, of good transparency and high mechanical strength. A polymerizable composition is provided which displays a liquid crystal phase, and moreover incorporates a liquid crystal backbone with two or more ring structures and a compound with a partial structure represented by the general formulaP1nullS1nullA1nullD1nullE1nullnullwherein P1 represents a polymerizable functional group; S1 represents null(CH2)wnull, nullO(CH2)wnull, null(CH2)wOnull, null(CH2)wC(nullO)Onull, null(CH2)wOC(nullO)null, nullC(nullO)O(CH2)wnull or nullOC(nullO)(CH2)wnull (w: 1 to 20); A1 and E1 each represent a hydrocarbon ring or a hetero ring, although E1 is a ring incorporated within the liquid crystal backbone; and D1 represents nullC(nullO)nullOnull(CH2)mnullOnull, nullO(CH2)mnullOnullC(nullO)null, nullOnullC(nullO)null(CH2)mnullOnull, or nullO(CH2)mnullC(nullO)nullOnull (m: 1 to 15)null.
摘要:
The invention relates to new thienothiophene derivatives, their use as semiconductors or charge transport materials, in optical, electrooptical or electronic devices like for example organic field effect transistors (FET or OFET) for thin film transistor liquid crystal displays and integrated circuit devices such as RFID tags, electroluminescent devices in flat panel displays, and in photovoltaic and sensor devices, and to a field effect transistor, light emitting device or ID tag comprising the thienothiophene derivatives.
摘要:
According to the present invention, a high-speed charge transport material is provided which comprises a polymer of a liquid crystal material which is a triphenylene compound having at least one specific unsaturated group in a molecule. The high-speed charge transport material can achieve a high-speed charge transport of not lower than 1null10null4 cm2nullVnull1snull1 within a wide temperature range.
摘要翻译:根据本发明,提供了一种高速电荷传输材料,其包括在分子中具有至少一个特定不饱和基团的三亚苯化合物的液晶材料的聚合物。 高速电荷传输材料可以在宽温度范围内实现不低于1×10 -4 cm 2.V-1s-1的高速电荷传输。
摘要:
The present invention relates to a stretchable blend comprising a stretchable liquid crystal polymer and a thermoplastic. These stretchable blends can be stretched at the same temperature range as many conventional thermoplastics. During a post orientation process, such as fiber or film stretching, the stretchable liquid crystal polymer can stretch and deform along with the thermoplastic matrix maintaining adhesion between the liquid crystal polymer domains and the thermoplastic matrix thereby improving the physical properties of the oriented article.
摘要:
An objective of the present invention is to provide a liquid crystal composition whose orientation undergoes a large change upon irradiation with light, and which also has a large birefringence nulln. The liquid crystal composition contains an aromatic acetylene compound and a chiral compound that undergoes a structural change upon photoreaction, and has such properties that, upon irradiation with light, its helical pitch undergoes a large change in accordance with the level of the light intensity, and that has a large birefringence nulln. Therefore, the present invention makes it possible to provide a reflection type color filter which utilizes the liquid crystal composition, and which provides a lighter display with high reflectance. Moreover, the present invention also provides an optical film that can be formed as a thinner film using the liquid crystal composition.
摘要:
A liquid crystalline compounds: R1nullAnull(X)mnull(B)nnullR2 are described where A is naphthyl, fluorinated naphthyl or brorninated naphthyl; B is phenyl, methylated phenyl, brominated phenyl, fluorinated phenyl or pyrimidine; R1 and R2 are independently C1-15 alkyl, alkoxy, alkynyl, thioalkyl, perfluoroalkyl, perfluoroalkoxy or Br, CN, SCN, NCS and hydrogen; X is COO or CnullC, m is 0 or 1, and n is 1.
摘要翻译:描述了液晶化合物:其中A是萘基,其中A是萘基,其中A是萘基, 氟化萘基或萘基; B是苯基,甲基化苯基,溴化苯基,氟化苯基或嘧啶; R 1和R 2独立地为C 1-15烷基,烷氧基,炔基,硫代烷基,全氟烷基,全氟烷氧基或Br,CN,SCN,NCS和氢; X为COO或C = C,m为0或1,n为1。