Including Fused Or Bridged Rings Patents (Class 252/299.62)
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Patent number: 8465672Abstract: The invention relates to mesogenic tetrahydropyran compounds having at least four rings, of the formula I in which R1, A1, A2, X1, L1, L2, m and n have the meanings indicated in Claim 1, and to a process for the preparation thereof, to the use thereof in liquid-crystalline media, to liquid-crystalline media comprising at least one compound of the formula I, and to electro-optical displays containing a liquid-crystalline medium of this type.Type: GrantFiled: July 17, 2007Date of Patent: June 18, 2013Assignee: Merck Patent GmbHInventors: Lars Lietzau, Markus Czanta, Atsutaka Manabe
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Patent number: 8465674Abstract: A compound represented by the formula (1) is provided. In the formula (1), for example, R1 and R2 are alkyl having 1 to 10 carbons, alkoxy having 1 to 9 carbons or alkenyl having 2 to 10 carbons; the ring A and the ring B are 1,4-cyclohexylene or 1,4-phenylene; Z1 and Z2 are a single bond and Z3 is —CH2O— or —OCH2—; Y1 and Y2 are halogen, —CF3, —CHF2, —CH2F, —OCF3, —OCHF2 or —OCH2F; and m and n is 0, 1 or 2, p is 1 or 2, and the sum of m, n and p is 1, 2 or 3.Type: GrantFiled: August 9, 2010Date of Patent: June 18, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventor: Tokifumi Masukawa
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Patent number: 8460577Abstract: The invention provides a compound represented by formula (1). In the formula (1), R1 is hydrogen, methyl or ethyl; X1 is a single bond, —O— or —OCO—; X2 is a single bond, —O—, —COO— or —OCO—; A1 and A2 are each independently a divalent aromatic ring or a divalent cyclohexane ring, and in these rings, arbitrary hydrogen may be replaced by halogen, alkyl having 1 to 3 carbons or halogenated alkyl having 1 to 3 carbons; Z1 is independently a single bond, —O—, —S—, —COO—, —OCO—, —CH2O—, —OCH2—, —CH?CH—COO—, —OCO—CH?CH—, —CH2CH2—COO—, —OCO—CH2CH2—, —CON(R)— or —N(R)CO—; R is hydrogen or methyl; Y is a terpenoid residue or a steroid residue; m is an integer from 0 to 20; and n is an integer from 0 to 3.Type: GrantFiled: November 16, 2010Date of Patent: June 11, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Mayumi Tanabe, Yoshiharu Hirai
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Patent number: 8460576Abstract: Provided are a liquid crystal composition containing, as a first component, a polymerizable compound represented by general formula (I): and a liquid crystal display element using the liquid crystal composition.Type: GrantFiled: April 15, 2011Date of Patent: June 11, 2013Assignee: DIC CorporationInventors: Kazuki Kurisawa, Takeshi Kuriyama, Shotaro Kawakami
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Patent number: 8455062Abstract: To provide a liquid crystal display panel that has high contrast and reduced display deficiency, a liquid crystal display panel of the present invention includes: a pair of substrates (1) and (2) facing each other; and a liquid crystal layer (3) sandwiched between the pair of substrates (1) and (2), the pair of substrates (1) and (2) being provided with a pair of respective alignment films (4) and (5) formed thereon and facing each other, the pair of alignment films (4) and (5) being provided with respective polymer films (6) and (7) formed thereon and each made of a monomer in the liquid crystal layer (3), the pair of alignment films (4) and (5) containing a macromolecular compound having a side chain containing a fluorine atom, the liquid crystal layer (3) containing a polymerizable monomer represented by at least one of General Formulae (1) through (3), the polymer films (6) and (7) each being made of the polymerizable monomer represented by at least one of General Formulae (1) through (3), the polymer filType: GrantFiled: March 24, 2010Date of Patent: June 4, 2013Assignee: Sharp Kabushiki KaishaInventors: Takako Nakai, Masanobu Mizusaki, Youhei Nakanishi
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Patent number: 8444877Abstract: Provided are liquid crystal compounds and mixtures incorporating the same. The liquid crystal compounds of the invention generally comprise a terminal cyclopentene group, along with at least two other ring groups.Type: GrantFiled: January 15, 2009Date of Patent: May 21, 2013Assignee: VVI Bright China Ltd.Inventors: Xinhua Chen, R. Amaranatha Reddy
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Publication number: 20130122274Abstract: A thermoplastic composition that comprises a low-naphthenic, thermotropic liquid crystalline polymer blended with a combination of flow modifiers is provided. More particularly, one of the flow modifiers is a hydroxy-functional compound that contains or more hydroxyl functional groups. Without intending to be limited by theory, it is believed that the hydroxyl functional groups can react with the polymer chain to shorten its length and thus reduce melt viscosity. Aromatic dicarboxylic acids are also employed as a flow modifier in the thermoplastic composition. Again, without intending to be limited by theory, it is believed that such acids can combine smaller chains of the polymer together after they have been cut by hydroxy-functional compounds. This helps maintain the mechanical properties of the composition even after its melt viscosity has been reduced.Type: ApplicationFiled: November 13, 2012Publication date: May 16, 2013Applicant: TICONA LLCInventor: Ticona LLC
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Publication number: 20130119310Abstract: To provide a novel liquid crystal compound having general physical properties necessary for the compound, namely, stability to heat, light and so forth, a wide temperature range of a liquid crystal phase, a high clearing point, a good compatibility with other compounds, a large refractive index anisotropy, a large dielectric anisotropy and a small viscosity. The liquid crystal compound is provided as compound (1): wherein, for example, R1 is alkyl having 1 to 20 carbons; ring A1 and ring B1 are 1,4-cyclohexylene or 1,4-phenylene; Z1 and Z2 are a single bond, —CH2CH2—, —CH?CH— or —C?C—; L1 is fluorine; L2, Y1 and Y2 are hydrogen, fluorine or chlorine; and X1 is halogen, —C?N or alkyl having 1 to 10 carbons, and in the alkyl, arbitrary —CH2— may be replaced by —O— or —S—, and m is 1 and n is 0.Type: ApplicationFiled: December 20, 2010Publication date: May 16, 2013Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventor: Hiroyuki Tanaka
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Publication number: 20130119317Abstract: A method for forming a liquid crystalline thermoplastic composition is provided. The method comprises blending at least one thermotropic liquid crystalline polymer and a plurality of fibers within an extruder. The extruder contains at least one rotatable screw received within a barrel (e.g., cylindrical barrel) and defines a feed section and a melting section located downstream from the feed section along the length of the screw. Relatively long fibers are initially supplied to the feed section of the extruder, but at a location downstream from the liquid crystalline polymer so that the polymer is still in a solid state when it initially contacts the fibers. In this manner, the present inventors have discovered that the polymer can act as an abrasive agent for reducing the length of the fibers.Type: ApplicationFiled: November 13, 2012Publication date: May 16, 2013Applicant: TICONA LLCInventor: Ticona LLC
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Publication number: 20130122273Abstract: A thermoplastic composition that comprises a low-naphthenic, thermotropic liquid crystalline polymer blended with a flow modifier is provided. The flow modifier is an aromatic carboxylic acid that contains one or more carboxyl functional groups. Without intending to be limited by theory, it is believed that the functional groups can react with the polymer chain to shorten its length and thus reduce melt viscosity. It is also believed that such acids can combine smaller chains of the polymer together after they have been cut during processing. This helps maintain the mechanical properties of the composition even after its melt viscosity has been reduced. As a result of the present invention, the melt viscosity of the thermoplastic composition is generally low enough so that it can readily flow into the cavity of a mold having small dimensions.Type: ApplicationFiled: November 13, 2012Publication date: May 16, 2013Applicant: TICONA LLCInventor: TICONA LLC
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Publication number: 20130122272Abstract: A thermoplastic composition that comprises a naphthenic-rich, thermotropic liquid crystalline polymer blended with a flow modifier is provided. The flow modifier is an aromatic carboxylic acid that contains or more carboxyl functional groups. Without intending to be limited by theory, it is believed that the functional groups can react with the polymer chain to shorten its length and thus reduce melt viscosity. It is also believed that such acids can combine smaller chains of the polymer together after they have been cut during processing. This helps maintain the mechanical properties of the composition even after its melt viscosity has been reduced. As a result of the present invention, the melt viscosity of the thermoplastic composition is generally low enough so that it can readily flow into the cavity of a mold having small dimensions.Type: ApplicationFiled: November 13, 2012Publication date: May 16, 2013Applicant: TICONA LLCInventor: Ticona LLC
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Patent number: 8440271Abstract: Providing a liquid crystal composition satisfies at least one of characteristics like a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat or has a suitable balance regarding at least two of the characteristics. Providing an AM device has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition has a negative dielectric anisotropy and contains a specific compound having large negative dielectric anisotropy as a first component, a specific three-ring compound having large optical anisotropy as a second component and a specific two-ring compound having low viscosity as a third component, and a liquid crystal display device contains the composition.Type: GrantFiled: August 16, 2010Date of Patent: May 14, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventor: Masayuki Saito
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Patent number: 8440101Abstract: Provided are a liquid crystal composition containing, as a first component, a polymerizable compound represented by general formula (I): R11—S11-L11-(M11-L12)m-M12-L13-(M13-L14)n-Z11??(I) and a liquid crystal display element using the liquid crystal composition.Type: GrantFiled: January 31, 2011Date of Patent: May 14, 2013Assignee: DIC CorporationInventors: Takeshi Kuriyama, Shinichi Hirata, Shotaro Kawakami
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Patent number: 8440914Abstract: A liquid crystalline thermoset oligomer or polymer including a structural unit of Chemical Formulae 1 and 2; and a functional group of Chemical Formula A,Type: GrantFiled: December 13, 2010Date of Patent: May 14, 2013Assignees: Samsung Electronics Co., Ltd., Samsung Electro-Mechanics Co., Ltd., Samsung Fine Chemicals Co., Ltd.Inventors: Jae-Jun Lee, Kalinina Fedosya, Myung-Sup Jung
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Publication number: 20130114010Abstract: The present invention relates to polymerisable mixtures and to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, especially in LC displays of the PS (“polymer sustained”) or PSA (“polymer sustained alignment”) type.Type: ApplicationFiled: June 30, 2011Publication date: May 9, 2013Applicant: MERCK PATENT GMBHInventors: Achim Goetz, Sven Christian Laut, Andreas Taugerbeck
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Patent number: 8431039Abstract: The present invention relates to compounds represented by the following Formula Ia, in which each R1-R6 can in each case be independently selected from hydrogen or hydrocarbyl (e.g., methyl); R7 is a multivalent linking group, such as L1 is a divalent linking group, such as a bond or divalent optionally substituted hydrocarbyl; each L2 independently represents a flexible segment, such as divalent linear or branched C1-C25 alkyl; each L3 independently represents a rigid segment including, for example, optionally substituted phenylen-1,4-diyl groups; t is from 1 to 4; m and p are each independently from 0 to 4 for each t, provided that the sum of m and p is at least 1 for each t; and E can be hydrogen or optionally substituted hydrocarbyl. The present invention also relates to compositions, such as liquid crystal compositions, and articles, such as optical elements, that include the compound represented by Formula Ia.Type: GrantFiled: August 8, 2011Date of Patent: April 30, 2013Assignee: Transitions Optical, Inc.Inventors: Xiao-Man Dai, Ruisong Xu, Meng He, Anil Kumar, Rachael L. Yoest, Chenguang Li
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Patent number: 8425800Abstract: Provided are a liquid crystal composition containing, as a first component, a polymerizable compound represented by general formula (I): (Z11)m11-M11-(L11-M12)n11-COO-(M13-L12)n12-M14-(Z12)m12??(I) and a liquid crystal display element using the liquid crystal composition.Type: GrantFiled: April 15, 2011Date of Patent: April 23, 2013Assignee: DIC CorporationInventors: Shinichi Hirata, Takeshi Kuriyama, Shotaro Kawakami
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Patent number: 8425988Abstract: The main aim of the invention is to provide a polymerizable compound that is excellent in the stability of a liquid crystal phase, a polymerizable liquid crystal composition, and an anisotropic polymer in which the optical anisotropy can be adjusted and a uniform orientation is excellent. An anisotropic polymer having a uniform orientation formed by polymerization of a paint film that was prepared by application of a polymerizable liquid crystal composition including a compound represented by formula (1) having a benzyl ester moiety in the minor axis direction of the molecule to a supporting substrate; wherein at least one of Ra is a polymerizable group, A is a divalent cyclic-structure group, B is phenyl that may have a substituent, Y and Z are a single bond or alkylene, and m and n are an integer from 0 to 5.Type: GrantFiled: December 21, 2010Date of Patent: April 23, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Yoshiharu Hirai, Takashi Kato
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Publication number: 20130093975Abstract: The present invention relates to polymerisable compounds, to processes and intermediates for the preparation thereof, and to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, especially in LC displays of the PS (“polymer sustained”) or PSA (“polymer sustained alignment”) type.Type: ApplicationFiled: June 1, 2011Publication date: April 18, 2013Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNGInventors: Andreas Taugerbeck, Achim Goetz, Stephan Derow
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Patent number: 8419973Abstract: A polymerizable liquid crystal composition is provided that can contains a mixture of polymerizable compounds containing a compound represented by the formula (1-1), a compound represented by the formula (2), a compound represented by the formula (3-1) and a compound represented by the formula (4), and a amine silane coupling agent. The composition can form a polymerizable liquid crystal layer exhibiting a uniform homeotropic alignment by coating the composition on a supporting substrate, independently from the kind of the supporting substrate without a special alignment film. Examples of each of the components are shown below, in which ring T represents triptycen-1,4-diyl.Type: GrantFiled: December 16, 2009Date of Patent: April 16, 2013Assignees: JNC Corporation, Chisso Petrochemical CorporationInventor: Yoshiharu Hirai
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Patent number: 8419972Abstract: A polymerizable liquid crystal composition is provided that is excellent in UV curing characteristics in the air and is excellent in orientation homogeneity, and a polymer film as a selective reflection film is provided that is obtained by orienting and polymerizing the composition on a supporting substrate. The liquid crystal composition contains a compound (1), a compound (2), a compound (3), a compound selected from a group of compounds represented by the formulae (4) to (6), and a surfactant. In the following formulae Y1 to Y4 and Y6 are each alkylene, A2, A3, A41, A42, A51, A52 and A6 are each a cyclic group, Z2 to Z4 and Z6 are each a bonding group, P4 and P6 are each an integer of from 0 to 3, R2, R31 and R32 are each hydrogen, halogen or alkyl, and Q1 and Q2 are each a polymerizable group.Type: GrantFiled: November 6, 2009Date of Patent: April 16, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Yoshiharu Hirai, Kazumi Hagihara
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Publication number: 20130087738Abstract: The present invention relates to an optical switch element, comprising a liquid-crystalline medium for the temperature-dependent regulation of radiant energy flow. The invention furthermore relates to the use of the optical switch element for the regulation of radiant energy flow between interior spaces and the environment and for the regulation of the temperature of interior spaces. The invention furthermore relates to a liquid-crystalline medium, characterised in that it comprises 5-95% of a compound of the formula (I), in particular for use in the optical switch elements according to the invention.Type: ApplicationFiled: May 4, 2011Publication date: April 11, 2013Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNGInventor: Michael Junge
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Publication number: 20130083284Abstract: The present invention relates to a switch element, which is thermo-responsive and which switches between a less transmissive state for radiant energy and a more transmissive state for radiant energy, and which comprises a liquid-crystalline medium. The invention furthermore relates to the use of the switch element for the regulation of radiant energy flow between interior spaces and the environment and for the regulation of the temperature of interior spaces. The invention furthermore relates to a liquid-crystalline medium, characterised in that it comprises 5-60% of a compound of the formula (I), in particular for use in the switch elements according to the invention.Type: ApplicationFiled: May 12, 2011Publication date: April 4, 2013Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNGInventor: Michael Junge
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Patent number: 8409673Abstract: A liquid crystal compound having a large refractive index anisotropy, a large dielectric anisotropy, and a low melting point, and a liquid crystal medium having a liquid crystal phase over a wide temperature range, a large refractive index anisotropy, a large dielectric anisotropy, and having an optically isotropic liquid crystal phase, are provided. The present invention is a liquid crystal compound having a chlorobenzene ring, and a liquid crystal medium characterized by containing the liquid crystal compound and a chiral reagent, and exhibiting an optically isotropic liquid crystal phase.Type: GrantFiled: May 7, 2010Date of Patent: April 2, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Yasuhiro Haseba, Takafumi Kuninobu
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Patent number: 8404317Abstract: The invention is to provide a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and heat, or a liquid crystal composition having a suitable balance regarding at least two of the characteristics; and an AM device having a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth; wherein a liquid crystal composition has a negative dielectric anisotropy and contains a specific compound having a large negative dielectric anisotropy as a first component and a specific two-ring compound having a large optical anisotropy and a low viscosity as a second component, and a liquid crystal display device contains the composition.Type: GrantFiled: December 23, 2011Date of Patent: March 26, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Masayuki Saito, Norikatsu Hattori
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Patent number: 8399073Abstract: The invention relates to a liquid-crystalline medium having negative dielectric anisotropy which comprises at least one compound of the formula I in which R1, R1* and a have the meanings indicated in Claim 1, and to the use thereof for an active-matrix display, in particular based on the VA, PS-VA, PALC, FFS or IPS effect.Type: GrantFiled: December 17, 2009Date of Patent: March 19, 2013Assignee: Merck Patent Gesellschaft mit Beschränkter HaftungInventors: Melanie Klasen-Memmer, Matthias Bremer, Konstantin Schneider, Detlef Pauluth
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Patent number: 8394294Abstract: The invention provides a liquid crystal compound which has stability to heat, light and so forth, a nematic phase in a wide temperature range, a small viscosity, a large optical anisotropy, and a suitable elastic constant K33, and further has a suitable and negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. Moreover, the invention provides a liquid crystal composition comprising this liquid crystal compound and a liquid crystal display device containing this liquid crystal composition. A liquid crystal compound represented by formula (a): for example, R1 and R2 are alkyl having 1 to 10 carbons, alkenyl having 2 to 10 carbons or alkoxy having 1 to 9 carbons; ring A1 and ring A2 are 1,4-phenylene or trans-1,4-cyclohexylene; L1 and L2 are hydrogen or fluorine, and at least one of L1 and L2 is fluorine; and Z1 and Z2 are a single bond, —(CH2)2—, —CH?CH—, —CH2O— or —OCH2—.Type: GrantFiled: June 2, 2009Date of Patent: March 12, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventor: Masahide Kobayashi
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Patent number: 8394468Abstract: Provided is a polymerizable compound with large solubility in a liquid crystal composition and high reactivity irradiated by ultraviolet in the longer wavelength range. Provided is a liquid crystal composition that satisfies at least one of characteristics such as high maximum temperature of a nematic phase, low minimum temperature of a nematic phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and high stability to heat, or that is suitably balanced between at least two of the characteristics.Type: GrantFiled: May 7, 2010Date of Patent: March 12, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Maiko Ito, Keiji Kimura, Norikatsu Hattori, Eriko Saegusa
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Patent number: 8389073Abstract: The invention provides a liquid crystal compound that has a large negative dielectric anisotropy (??) and also has at least one of characteristics such as the stability to heat, light or the like, a high clearing point, a suitable refractive index anisotropy (?n), a large negative dielectric anisotropy (??) and an excellent compatibility with other liquid crystal compounds. An excellent effect in which especially the value of the dielectric anisotropy (??) is increased negatively is achieved by use of the compound having two moieties of 1) a tetrahydropyran ring and and thus the effect is utilized.Type: GrantFiled: February 1, 2010Date of Patent: March 5, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Kenji Hirata, Tokifumi Masukawa, Junichi Yamashita, Maiko Ito
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Patent number: 8388861Abstract: A LC compound and a LC mixture are provided. The LC mixture includes a compound represented by (I) and at least one compound selected from a group consisting of compounds represented by (II) to (IV): in which X1 is F, —Cl, —CF3, or —OCF3; R, R11, and R12 are independently H, a C1-C15 alkyl group, or a C2-C15 alkenyl group; A1 is 1,4-phenylene; A11, A12, A13, and A14 are independently selected from a group consisting of 1,4-phenylene, 1,4-cyclohexylene, and 2,5-tetrahydropyranylene; at least one of A2, A3, and A4 is 2,5-indanylene, and the others are independently selected from a group consisting of 1,4-phenylene, 1,4-cyclohexylene, and 2,5-tetrahydropyranylene; L1 is —F2CO—; Z11, Z12, and Z13 are independently a single bond, —O—, —F2CO—, or —COO—; m is 1; n, o and p are independently 0, 1, 2 or 3, and n+o+p?3.Type: GrantFiled: March 17, 2011Date of Patent: March 5, 2013Inventors: Chun-Chih Wang, Wen-Chung Chu, Ren-Jie Chiou, Shi-Zhi You, Hong-Wei Zhang, Yu-Dong Tan
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Patent number: 8388860Abstract: Isomannide-based compounds having chiral properties are provided, in addition to liquid crystal compositions and polymer networks derived therefrom.Type: GrantFiled: August 14, 2008Date of Patent: March 5, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Marc B Goldfinger, Kai Qi
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Publication number: 20130048913Abstract: The invention is to provide a new liquid crystal compound having a high clearing point, a good compatibility with other compounds, a small viscosity, and a high stability to heat, light and so forth; compound (1) is provided: R1?CF2?nR2??(1) wherein, for example, R1 is alkyl having 4 to 10 carbons or —(CH2)2—CH?CH2, R2 is alkyl having 2 to 10 carbons, n is 8, and R1 and R2 are not allowed to be straight-chain alkyl having an identical number of carbons.Type: ApplicationFiled: August 23, 2012Publication date: February 28, 2013Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Hiroyuki TANAKA, Sayaka FUJIMORI
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Publication number: 20130048908Abstract: A thermotropic liquid crystalline polymer composition capable of exhibiting both a low melting temperature and good heat resistance without the use of conventional naphthenic acids is provided. The melting temperature may, for example, range from about 250° C. to about 400° C. Even at such low melting temperatures, the present inventors have surprisingly discovered that the ratio of the deflection temperature under load (“DTUL”), a measure of short term heat resistance, to the melting temperature may remain relatively high. The specific DTUL values may range from about 200° C. to about 300° C. The ability to form a polymer composition with the properties noted above may be achieved, at least in part, by the use of an aromatic amide oligomer.Type: ApplicationFiled: August 27, 2012Publication date: February 28, 2013Applicant: TICONA LLCInventors: Steven D. Gray, Kamlesh P. Nair, Joseph J. Grenci
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Publication number: 20130048914Abstract: A liquid crystalline polymer composition that contains a liquid crystalline polymer and an aromatic amide oligomer is provided. The oligomer can serve as a flow aid by altering intermolecular polymer chain interactions, thereby lowering the overall viscosity of the polymer matrix under shear. The oligomer is also not easily volatized or decomposed during compounding, molding, and/or use, which minimizes off-gassing and the formation of blisters that would otherwise impact the final mechanical properties of a part made from the polymer composition. While providing the benefits noted, the aromatic amide oligomer does not generally react with the polymer backbone of the liquid crystalline polymer to any appreciable extent so that the mechanical properties of the polymer are not adversely impacted.Type: ApplicationFiled: August 27, 2012Publication date: February 28, 2013Applicant: TICONA LLCInventors: Kamlesh P. Nair, Joseph J. Grenci, Sayanti Basu, Steven D. Gray
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Patent number: 8377331Abstract: A blue phase liquid crystal composition and a LC display using the composition. The liquid crystal composition includes a first class including a highly polar compound and a second class including a highly conjugated liquid crystal compound. The blue phase liquid crystal display device includes first and second substrates each with polarizer on the exterior surface and the blue phase liquid crystal composition sandwiched therebetween with and patterned electrodes on one of the substrates or both substrates. The patterned electrodes can be T-shaped, chevron or v-shaped, thin comb like shape and can also be flat or trapezoidal. The device outputs different light transmissions from the electrically controllable induced birefringence of the blue phase LC material for a low driving voltage, high transmittance blue phase liquid crystal display device.Type: GrantFiled: June 3, 2010Date of Patent: February 19, 2013Assignees: University of Central Florida Research Foundation, Inc., Chimei Innolux CorporationInventors: Sebastian Gauza, Shin-Tson Wu, Zhibing Ge, Linghui Rao, Hsu-Kuan Hsu, Chao-Lung Chin
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Patent number: 8366963Abstract: A liquid crystal compound is to be obtained that has stability to heat, light and so forth, a high clearing point, a suitable optical anisotropy, a large negative dielectric anisotropy, and excellent compatibility with other liquid crystal compounds. A liquid crystal composition containing the compound is also to be obtained that has a low viscosity, a suitable optical anisotropy, a suitable negative dielectric anisotropy, a low threshold voltage, a high maximum temperature of a nematic phase (phase transition temperature from a nematic phase to an isotropic phase), and a low minimum temperature of a nematic phase. A compound having a hydrocoumarin skeleton is synthesized, and a liquid crystal composition containing the compound is produced.Type: GrantFiled: April 11, 2011Date of Patent: February 5, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Mayumi Goto, Teruyo Sugiura, Norikatsu Hattori, Kouki Sagou
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Publication number: 20130026413Abstract: The present invention provides a liquid-crystalline polymer composition comprising: 100 parts by weight of a liquid-crystalline polymer and 1-150 parts by weight of the total weight of talc particles (A) and talc particles (B), wherein talc particles (A) have an aspect ratio of 3.1-5.0 and a median particle diameter of 5-100 ?m; and talc particles (B) have an aspect ratio of 1.0-3.0 and a median particle diameter of 5-100 ?m; wherein the weight ratio of talc particles (A)/talc particles (B) is from 1/9 to 9/1. The liquid-crystalline polymer composition according to the present invention exhibits improved molding flowability without impairing mechanical properties.Type: ApplicationFiled: July 26, 2012Publication date: January 31, 2013Applicant: UENO FINE CHEMICALS INDUSTRY, LTDInventors: Hiroto UCHIDA, Hitoshi TSUCHIYA
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Patent number: 8361344Abstract: The subject is to provide a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of the nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least two of the characteristics. The subject is also to provide the AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life, and so forth. The invention provides a liquid crystal composition having a negatively dielectric anisotropy containing a specific compound having a negatively large dielectric anisotropy as a first component, and a specific compound having a negatively large dielectric anisotropy as a second component, and provides a liquid crystal display device containing this composition.Type: GrantFiled: August 13, 2010Date of Patent: January 29, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Takayoshi Yanai, Masayuki Saito
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Patent number: 8361568Abstract: Disclosed are a liquid-crystalline medium of negative dielectric anisotropy based on a mixture of polar compounds, which contains at least one compound of formula IA and at least one compound of formulae IB, IC and/or ID and the use thereof for an active-matrix display, in particular based on the ECB, PALC, FFS or IPS effect.Type: GrantFiled: January 4, 2010Date of Patent: January 29, 2013Assignee: Merck Patent GmbHInventors: Melanie Klasen-Memmer, Matthias Bremer
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Publication number: 20130023637Abstract: The present invention is to provide a novel polymerizable chiral compound (chiral agent) having high left-handed helical twisting power, a polymerizable liquid crystal composition comprising the polymerizable chiral compound and a polymerizable liquid crystal compound, a liquid crystal polymer, and an optically anisotropic body.Type: ApplicationFiled: March 10, 2011Publication date: January 24, 2013Applicant: ZEON CORPORATIONInventors: Kei Sakamoto, Kentaro Tamura, Kumi Okuyama
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Patent number: 8357436Abstract: The subject is to provide a liquid crystal composition that satisfies at least one characteristic of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a negatively large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding two characteristics thereof. The subject is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The invention provides a liquid crystal composition having a negative dielectric anisotropy that includes a specific compound having 1-pyran-2,5-dyil as a first component, and a specific compound having a negatively large dielectric anisotropy as a second component , and provides a liquid crystal display device containing the composition.Type: GrantFiled: August 25, 2009Date of Patent: January 22, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Masayuki Saito, Norikatsu Hattori
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Patent number: 8349210Abstract: The present invention relates to compounds represented by the following Formula I, in which R1-R6 can each independently be selected from hydrogen or hydrocarbyl (e.g., methyl); L1 is a divalent linking group, such as a bond or —OC(O)—R8—C(O)O—, where R8 can be divalent hydrocarbyl (e.g., —CH2CH2—); each L2 independently represents a flexible segment, such as divalent linear or branched C1-C25 alkyl; each L3 independently represents a rigid segment including, for example, optionally substituted phenylen-1,4-diyl groups; t is from 1 to 4; m and p are each independently from 0 to 4 for each t, provided that the sum of m and p is at least 1 for each t; and E can be hydrogen or hydrocarbyl. The present invention also relates to compositions, such as liquid crystal compositions, and articles, such as optical elements, that include the compound represented by Formula I.Type: GrantFiled: August 8, 2011Date of Patent: January 8, 2013Assignee: Transitions Optical, Inc.Inventors: Ruisong Xu, Xiao-Man Dai, Anil Kumar, Meng He, Chenguang Li, Rachael L. Yoest
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Patent number: 8349209Abstract: The invention provides a liquid crystal composition having an optically isotropic liquid crystal phase used in an element driven in a state of an optically isotropic liquid crystal phase, which comprises a compound 1 having the clearing point T1 and a compound 2 having the clearing point T2, and which has the clearing point Tx, wherein the liquid crystal composition comprises 10 to 80 wt % of compound 1 and 20 to 90 wt % of compound 2, and wherein the clearing point T1, the clearing point T2 and the clearing point Tx of the liquid crystal composition satisfy the following conditions: T1>T2 T1?Tx?100° C.Type: GrantFiled: March 9, 2007Date of Patent: January 8, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Yasuhiro Haseba, Hirotsugu Kikuchi
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Publication number: 20130003009Abstract: To provide a liquid crystal composition satisfying at least one characteristic such as a high maximum temperature of a nematic phase, a low minimum temperature thereof, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy and specific resistance, a high stability to ultraviolet light and heat, or a liquid crystal composition having a suitable balance regarding at least two characteristics; an AM device having a short response time, a large voltage holding ratio and contrast ratio, a long service life and so forth; wherein the liquid crystal composition contains a specific compound having a polymerizable group as a first component, and may contain a specific compound having a large negative dielectric anisotropy and a low minimum temperature as a second component, or a specific compound having a small viscosity or a large maximum temperature as a third component, and a liquid crystal display device contains the composition.Type: ApplicationFiled: May 9, 2011Publication date: January 3, 2013Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Yoshimasa Furusato, Eriko Kurihara
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Patent number: 8343596Abstract: The invention is to provide a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least two of the characteristics, wherein the liquid crystal composition has negative dielectric anisotropy and includes a specific compound having a large negative dielectric anisotropy as a first component, a specific compound containing a pyran ring and having a large negative dielectric anisotropy as a second component, a specific compound having a small viscosity as a third component, and a specific compound having a large negative dielectric anisotropy as a fourth component, and the liquid crystal display device contains this composition.Type: GrantFiled: January 14, 2010Date of Patent: January 1, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Norikatsu Hattori, Masayuki Saito
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Publication number: 20120326084Abstract: The invention relates to a liquid-crystalline medium which comprises at least one compound of the formula I, in which R1, R1*, ring A have the meanings indicated in Claim 1, and to the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PALC, FFS or IPS effect.Type: ApplicationFiled: February 10, 2011Publication date: December 27, 2012Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNGInventors: Melanie Klasen-Memmer, Volker Reiffenrath, Konstantin Schneider, Andreas Waechtler, Elvira Montenegro
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Publication number: 20120327357Abstract: The present invention relates to polymerisable compounds, to processes and intermediates for the preparation thereof, to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays having a polymer-stabilised blue phase, and in LC media for LC displays of the PS or PSA type (“polymer sustained” or “polymer sustained alignment”), and to LC media and LC displays comprising these compounds.Type: ApplicationFiled: February 24, 2011Publication date: December 27, 2012Applicant: Merck Patent Gesellschaft Mit Beschrankter HaftungInventors: Axel Jansen, Thorsten Kodek, Helmut Haensel, Erdal Durmaz
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Patent number: 8337964Abstract: The invention is to provide a liquid crystal composition that satisfies at least one of characteristics such as a wide temperature range of nematic phase, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a large specific resistance, high stability to ultraviolet light and high stability to heat, or that is suitably balanced regarding at least two of the characteristics; and is to provide a AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition having a negative dielectric anisotropy may include a two-ring compound having a large negative dielectric anisotropy and at least three fluorines or chlorines at the lateral positions as a first component; and a specific compound having a large negative dielectric anisotropy as a second component. The liquid crystal display device contains this composition.Type: GrantFiled: October 21, 2009Date of Patent: December 25, 2012Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Yuji Yamashita, Yoshimasa Furusato
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Patent number: 8337719Abstract: The present invention provides a resin composition containing a liquid crystalline polyester and a high dielectric material filler. The present invention also provides a molded article of the liquid crystalline polyester resin composition. The liquid crystalline polyester resin composition of the present invention comprises 50 to 80% by volume of a liquid crystalline polyester which has 40% by mol or more of a 2,6-naphthalenediyl group as an aromatic group, also has a flow initiation temperature of 280° C. or higher, and shows a melt tension of 1 g or more measured at a temperature higher than flow initiation temperature; and 20 to 50% by volume of a high dielectric material filler. The liquid crystalline polyester resin composition can be formed into composition pellets easily and stably by a strand method, and a molded article obtained from the liquid crystalline polyester resin composition is excellent in flexural strength and dielectric characteristics.Type: GrantFiled: December 2, 2008Date of Patent: December 25, 2012Assignee: Sumitomo Chemical Company, LimitedInventors: Tomoya Hosoda, Tomoko Uehara, Satoshi Okamoto
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Publication number: 20120313040Abstract: A coating liquid comprising: a lyotropic liquid crystalline compound having a ?-conjugated system planar skeleton moiety and one or plural nitrogen-containing heterocyclic cation moiety or nitrogen-containing heteroaromatic cation moiety bonded to the planar skeleton moiety; and a solvent, an optical anisotropic film obtained by applying the coating liquid on a developing surface to form a coated film and solidifying this coated film, and an image display device provided with the optical anisotropic film are disclosed.Type: ApplicationFiled: June 5, 2012Publication date: December 13, 2012Applicant: NITTO DENKO CORPORATIONInventor: Hisanari ONOUCHI