Chisso Corporation

Jnc Corporation

Jnc Petrochemical Corporation

Chisso Petrochemical Corporation

Sharp Kabushiki Kaisha Corporation

Mayumi Tanabe

Shinichi Saito

Eiji Okabe

Daisuke Ootsuki

Takashi Kaneko

Hitoshi Takeda

Makoto Shiomi

Mitsuhiro Koden

Makoto Kikuchi

Katsuyuki Murashiro

Yoshiharu Hirai

Nagahisa Miyagawa

Masatoshi Fukushima

Kazumi Nara

Motonari Matsuki

Teiyu Sako

Masami Kido

Akira Sakaigawa

Junichi Inagaki

Mitshuhiro Koden

Kie Kubouchi

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

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.

Optically anisotropic substance and liquid crystal display

To provide a photoalignable material that can yield a photoalignable film having a high optical uniformity and no alignment defect, and allows photoalignment with exposure in a short period of time. A photoalignable polymer composition containing a specific photoalignable polymer having a silicone group or a fluorine-substituted alkyl group, and a photoalignable group, and a specific non-photoalignable polymer is manufactured, and the photoalignable film is manufactured by applying the polymer composition onto a base material or the like, drying an applied surface thereon, and irradiating the applied surface with light.

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

The invention provides a compound represented by formula (1). In the formula (1), Ris hydrogen, methyl or ethyl; Xis a single bond, &#x2014;O&#x2014; or &#x2014;OCO&#x2014;; Xis a single bond, &#x2014;O&#x2014;, &#x2014;COO&#x2014; or &#x2014;OCO&#x2014;; Aand Aare 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; Zis independently a single bond, &#x2014;O&#x2014;, &#x2014;S&#x2014;, &#x2014;COO&#x2014;, &#x2014;OCO&#x2014;, &#x2014;CHO&#x2014;, &#x2014;OCH&#x2014;, &#x2014;CH&#x2550;CH&#x2014;COO&#x2014;, &#x2014;OCO&#x2014;CH&#x2550;CH&#x2014;, &#x2014;CHCH&#x2014;COO&#x2014;, &#x2014;OCO&#x2014;CHCH&#x2014;, &#x2014;CON(R)&#x2014; or &#x2014;N(R)CO&#x2014;; 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.

Polymerizable oxetane derivative

The invention is to provide a photosensitive compound suitable for a photoalignment method, a photosensitive polymer prepared from the compound, a photoaligning agent by using the compound and a liquid crystal alignment film prepared from the photoaligning agent. A photosensitive compound represented by formula (1): in formula (1), Yis a divalent group represented by formula (2-1) or (2-2); Ais 1,4-phenylene or 1,4-cyclohexylene; Zis a single bond, &#x2014;COO&#x2014; or &#x2014;OCO&#x2014;; Rand Rare each independently hydrogen, fluorine or alkyl having 1 to 5 carbons; Qis independently a single bond or alkylene having 1 to 12 carbons; and n is 0 or 1. In formulas (2-1) and (2-2), Wand Ware each independently hydrogen, alkyl having 1 to 3 carbons or alkoxy having 1 to 3 carbons.

Photosensitive compound and its photosensitive polymer

The polymerizable liquid crystal composition includes at least two selected from the group of compounds represented by the following Formulas (1) and (2): wherein m is 5 or 10; and wherein n is 3, 4, 6, 7, 8 or 9, and R is hydrogen or methyl

Polymerizable liquid crystal composition and uses for the same

A cholesteric liquid crystal composition containing at least one esterified product selected from the group consisting of (1) an esterified product of a hydrolysate of (A) a &#x3b3;-oryzanol and (B1) a carboxylic acid compound, (2) an esterified product of a hydrogenated product of a hydrolysate of (A) a &#x3b3;-oryzanol and (B2) a carboxylic acid compound, and (3) an esterified product of a hydrogenated product of (A) a &#x3b3;-oryzanol and (B3) a carboxylic acid compound. The &#x3b3;-oryzanol (A) is a mixture containing at least one ferulate ester of a vegetable sterol and at least one ferulate ester of a triterpene alcohol, and the hydrolysate of the &#x3b3;-oryzanol (A) is a mixture containing at least one vegetable sterol and at least one triterpene alcohol.

Cholesteric liquid crystal composition

A polymerizable cholesteric liquid crystal composition in the invention includes at least one compound selected from the group consisting of a polymerizable ester compound (1) having a residue of a hydrolysate of &#x3b3;-oryzanol (A) and having a ring structure, a polymerizable ester compound (2) having a residue of a hydrolysate of &#x3b3;-oryzanol (A) and having no ring structures, and a polymerizable ester compound (3) having a residue of a hydrogenated product of &#x3b3;-oryzanol.

Polymerizable cholesteric liquid crystal composition and its use

The cholesteric liquid crystal composition includes at least one compound selected from the group of compounds represented by Formulas (1) to (8): wherein Rrepresents independently alkyl having 1 to 10 carbon atoms or alkoxy having 1 to 10 carbon atoms.

The polymerizable liquid crystal composition includes at least two selected from the group of compounds represented by the following Formulas (1) and (2):  wherein n is 3, 4, 6, 7, 8 or 9, and R is hydrogen or methylwherein said composition includes at most only two compounds of Formula (1) in which m is 10; andwherein said composition does not include a compound of Formula (2) in which n is 3 and R is hydrogen.

The invention includes compounds represented by Formula (1): wherein R represents hydrogen or methyl; A represents alkylene having from 1 to 12 carbon atoms, wherein in the alkylene, arbitrary &#x2014;CH&#x2014; may be replaced by &#x2014;O&#x2014;, &#x2014;S&#x2014;, &#x2014;CH&#x2550;CH&#x2014;, &#x2014;CO&#x2014;, &#x2014;COO&#x2014; or &#x2014;OCO&#x2014;; X and Y each independently represent an aromatic ring or a cyclohexane ring, wherein in the rings, arbitrary hydrogen may be replaced by alkyl having from 1 to 3 carbon atoms; Z independently represents a single bond, &#x2014;O&#x2014;, &#x2014;S&#x2014;, &#x2014;COO&#x2014;, &#x2014;OCO&#x2014;, &#x2014;CON(R)&#x2014; or &#x2014;N(R)CO&#x2014;, wherein Rrepresents hydrogen or methyl; and m represents an integer of from 0 to 3.

Polymerizable menthol derivative

Smectic liquid crystal composition and liquid crystal device

A composition containing a smectic C compound, having a .DELTA..epsilon. of negative value and enabling to effect a high speed response; a ferroelectric chiral smectic C liquid crystal composition using the same; and a ferroelectric liquid crystal display device using the ferroelectric chiral smectic C liquid crystal composition are provided, which composition containing a smectic C compound comprises at least one compound expressed by the formula (I) ##STR1## wherein R.sup.1 and R.sup.2 each represent different linear alkyl groups of 1 to 9 C, and at least one compound-expressed by the formula (II) ##STR2## wherein R.sup.3 and R.sup.4 each represent the same or different linear alkyl groups of 1 to 18 C and X is H or F.

Smectic C liquid crystal composition and a liquid crystal display element

A composition containing a smectic C compound, having a .DELTA..epsilon. of negative value and enabling to effect a high speed response; a ferroelectric chiral smectic C liquid crystal composition using the same; and a ferroelectric liquid crystal display device using the ferroelectric chiral smectic C liquid crystal composition are provided,

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Chiba, Japan

Mayumi Tanabe