Jnc Corporation

Jnc Petrochemical Corporation

Nagahisa Miyagawa

Daisuke Ootsuki

Yoshiharu Hirai

Mayumi Tanabe

Kazumi Nara

A polymerizable liquid crystal composition for obtaining a retardation film that has high front contrast; and a liquid crystal polymer. A polymerizable liquid crystal composition which is characterized by containing a compound represented by formula (1).  Exemplified are embodiments wherein in formula (1), Wrepresents an alkyl group having 1-5 carbon atoms, an alkoxy group having 1-5 carbon atoms, an alkoxycarbonyl group having 1-5 carbon atoms or an alkanoyl group having 1-5 carbon atoms; Zrepresents &#x2014;CHCHCOO&#x2014;; Zrepresents &#x2014;OCOCHCH&#x2014;; each of Yand Yrepresents a linking group; each of Qand Qrepresents a spacer; and each of Pand Prepresents a polymerizable functional group.

Polymerizable liquid crystal composition and liquid crystal polymer

A polymerizable liquid crystal composition is presented which can form a polymer that allows formation of a uniform homeotropic alignment even without forming an alignment film on the supporting substrate and has excellent chemical strengths such as heat resistance and solvent resistance. The polymerizable liquid crystal composition includes at least one type of polyfunctional polymerizable liquid crystal compound and a cardo-type fluorene monomer, wherein based on a total amount of the polyfunctional polymerizable liquid crystal compound, a content of a monofunctional polymerizable liquid compound is less than 5.0% by weight.

Polymerizable liquid crystal composition and optical anisotropical body thereof

To provide a polymerizable liquid crystal compound in order to produce a retardation film having excellent front contrast. A polymerizable liquid crystal composition including a compound represented by Formula (1).  In Formula (1), for example, Wis an alkoxycarbonyl group having 1 to 10 carbon atoms, an alkanoyl group having 1 to 10 carbon atoms, or a polymerizable functional group, Ais independently 1,4-phenylene or naphthalene-2,6-diyl, Zis a linking group, m and n are independently an integer of 0 to 7, and satisfy 3&#x2264;m+n&#x2264;8, and Pis a polymerizable functional group.

Polymerizable liquid crystal compound, polymerizable liquid crystal composition, and liquid crystal polymerized films

Provided is a polymerizable liquid crystal compound represented by formula (1).  An aspect can be exemplified, in which, in formula (1), Wis hydrogen or a substituent, Ais 1,4-phenylene, 1,4-cyclohexylene or naphthalene-2,6-diyl, Zand Yare a connecting group, m and n each are an integer from 0 to 7, in which an expression: 3&#x2264;m+n&#x2264;8 holds, Qis a spacer, and PG is a polymerizable group.

Polymerizable liquid crystal compounds, polymerizable liquid crystal compositions, liquid crystalline polymers, phase difference film and display device

To provide a photoalignable material that can yield a photoalignable film having a high optical uniformity and no alignment defect, and is excellent in sensitivity to allow photoalignment even with exposure in a short period of time, and a liquid crystal alignment film having a high alignment stability of a liquid crystal compound from the photoalignable material. A photoalignable polymer composition containing a specific photoalignable polymer and a specific polymer that is reactive with the photoalignable polymer is manufactured, and the photoalignable film is manufactured by applying the polymer composition onto a base material or the like, drying the applied composition thereon, and irradiating the dried composition with light. Furthermore, the liquid crystal alignment film is manufactured by allowing alignment of molecules of the liquid crystal compound in the photoalignment film.

Polymer composition having photoalignable group, liquid crystal alignment film formed of the polymer composition, and optical device having phase difference plate formed of the liquid crystal alignment film

A polymerizable liquid crystal composition contains a polymerizable liquid crystal compound having good solubility, and is well-aligned without dissolving a substrate or a base material when coated onto the substrate. Moreover, the polymerizable liquid crystal composition causes no coating film unevenness during coating so that a smooth optically anisotropic body can be obtained. The polymerizable liquid crystal composition contains at least one kind of polymerizable liquid crystal compound having one or more polymerizable functional groups in one molecule, and a solvent, wherein the solvent includes a diacetate solvent and a ketone solvent.

Polymerizable liquid crystal composition and optically anisotropic body

A subject is to provide a polymerizable liquid crystal composition from which an optically anisotropic substance having twist alignment that is excellent in chemical strength (chemical resistance) and has only a small amount of alignment defects can be obtained. A solution is a polymerizable liquid crystal composition containing an optically active compound having a binaphthol moiety, an achiral polymerizable liquid crystal compound and a photopolymerization initiator having oxime ester.

Polymerizable liquid crystal composition and optically anisotropic substance having twist alignment

To provide an optically anisotropic substance having a negative uniaxial phase difference film and a positive uniaxial phase difference film, and excellent heat resistance and sputtering resistance. The positive uniaxial phase difference film is formed in combination with a bifunctional polymerizable liquid crystal compound, the negative uniaxial phase difference film is formed in combination of the bifunctional polymerizable liquid crystal compound with an optically active compound having a polymerizable binaphthol moiety, and additional thermosetting treatment (postcure) is applied after the negative uniaxial phase difference film is photocured, and when glass transition temperature after the negative uniaxial phase difference film is cured is 85&#xb0; C. or higher and 115&#xb0; C. or lower, additional thermosetting treatment temperature is adjusted to 220&#xb0; C. or higher and 250&#xb0; C. or lower, and when the glass transition temperature is higher than 115&#xb0; C., the additional thermosetting treatment temperature is adjusted to 200&#xb0; C. or higher and 250&#xb0; C. or lower.

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Chiba, Japan

Nagahisa Miyagawa