Jnc Corporation

Jnc Petrochemical Corporation

Chisso Petrochemical Corporation

Junichi Inagaki

Daisuke Ootsuki

Kazumi Nara

Ryushi Shundo

Yoshiharu Hirai

Mayumi Tanabe

Tomohiro Yano

Maiko Ito

Maiko Itoh

A problem is, in a liquid crystal film in which an alignment layer and a liquid crystal composition layer having homogeneous alignment are formed on a support substrate, to improve adhesion between the alignment layer and the liquid crystal composition layer, and durability under a severe environment such as high temperature and high humidity. A solution is a non-liquid crystalline polymerizable compound having a radically polymerizable group and a cationically polymerizable group in a molecule is simultaneously used as an antistripping additive in a polymerizable liquid crystal composition layer having homogeneous alignment.

Film using polymerizable liquid crystal composition containing peeling preventive agent

An optically active compound having a polymerizable group which is represented by formula (1) or (2).P-Q-(A-Z)&#x2014;X&#x2014;(Z-A)-Q-P&#x2003;&#x2003;(1)P-Q-(A-Z)&#x2014;X&#x2003;&#x2003;(2)For example, Ais independently divalent group having ring; Zis independently bonding group; m is independently an integer from 1 to 5; Qis independently alkylene having 1 to 20 carbons; Xis a divalent group having chirality; Xis a monovalent group having chirality, and Pand Pare polymerizable groups; and concerns a polymerizable liquid crystal composition, a polymer, an optical device and an article.

Optically active compound having polymerizable group and its polymer

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

A polymerizable liquid crystal compound represented by formula (1):  

Polymerizable liquid crystal compound and its polymer

The main aim of the invention is to provide a polymerizable liquid crystal compound that has a liquid crystal phase with a wide temperature range centering at room temperature, has an excellent compatibility with another polymerizable liquid crystal compound, has an excellent solubility in an organic solvent and is polymerizable even in air by heat or light. A polymerizable liquid crystal compound represented by formula (1-1) or formula (1-2): wherein Aand Aare a divalent cyclic-structure group such as cyclohexylene and phenylene; Zis a bonding group such as a single bond and &#x2014;O&#x2014;; m is an integer from 1 to 5; Qand Qare alkylene having 1 to 20 carbons; Ris fluorine, cyano, trifluoromethyl, trifluoromethoxy, alkyl, alkoxy and so forth; and Rand Ris hydrogen, halogen or alkyl.

Polymerizable liquid crystal compounds having oxiranyl group, polymerizable liquid crystal compositions and polymers

The purpose the invention is to provide a polymerizable liquid crystal compound which has an excellent solubility with other compounds, a high homeotropic property, and a spirobiindan-backbone, and a liquid crystal composition comprising this compound. The purpose is attained with a polymerizable liquid crystal compound represented by Formula (1). A polymer which is excellent in many characteristics can be obtained from this compound and a formed body having optical anisotropy, produced from this polymer can be obtained. In Formula (1), G is a single bond or oxygen; R is hydrogen, methyl (Me) or a group represented by Formula (a), wherein at least two of R are groups represented by Formula (a); P is a polymerizable group represented by any of Formula (P1) to Formula (P8). In Formula (a), a desirable A is 1,4-cyclohexylene or 1,4-phenylene; Z is a bonding group; m is an integer of 0 to 3; Xis a single bond or alkylene; Zis a single bond, &#x2014;O&#x2014;, &#x2014;OCO&#x2014;, or &#x2014;OCOO&#x2014;; X is a single bond or alkylene. 

Polymerizable liquid crystal compound, liquid crystal composition and polymer

The compound of the present invention is represented by the formula (1). In the formula (1), Rand Rare hydrogen, fluorine, chlorine, methyl or ethyl; Xand Xare hydrogen, fluorine, methyl or trifluoromethyl; Zand Zare a single bond, &#x2014;COO&#x2014;, &#x2014;OCO&#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;CHO&#x2014;, &#x2014;CONH&#x2014;, &#x2014;(CH)&#x2014;, &#x2014;CHCH&#x2014; or &#x2014;C&#x2261;C&#x2014;; Zand Zare a single bond or &#x2014;O&#x2014;; Aand Aare 1,4-cyclohexylene, 1,4-phenylene, 1,3-phenylene, pyridin-2,5-diyl, pyrimidin-2,5-diyl, naphthalen-2,6-diyl or tetrahydronaphtlane-2,6-diyl; and Yand Yare alkylene having from 2 to 20 carbon atoms. 

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Chiba, Japan

Junichi Inagaki