摘要:
An optically anisotropic sheet comprises an optically anisotropic layer, an orientation layer and a transparent support in this order. The optically anisotropic layer is formed from discotic liquid crystal molecules. The orientation layer is subjected to rubbing treatment. The discotic liquid crystal molecules are aligned with the orientation layer. An average inclined angle of discotic planes of the discotic liquid crystal molecules is in the range of 50° to 90°. An average direction of optical axes of the discotic liquid crystal molecules is essentially parallel to a rubbing direction of the orientation layer.
摘要:
An optically anisotropic sheet comprises an optically anisotropic layer, an orientation layer and a transparent support in this order. The optically anisotropic layer is formed from discotic liquid crystal molecules. The orientation layer is subjected to rubbing treatment. The discotic liquid crystal molecules are aligned with the orientation layer. An average inclined angle of discotic planes of the discotic liquid crystal molecules is in the range of 50° to 90°. An average direction of optical axes of the discotic liquid crystal molecules is essentially parallel to a rubbing direction of the orientation layer.
摘要:
A heterocyclic ring-containing compound represented by the following formula (1). In the formula, D represents a heterocyclic ring residue having a 5- to 7-membered ring structure and substituted with (m+n) of substituents, X represents a divalent linking group consisting of a single bond, NR3 group (R3 represents a hydrogen atom or an alkyl group having 1-30 carbon atoms), an oxygen atom, a sulfur atom, a carbonyl group, a sulfonyl group or a combination thereof, R1 represents an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group, which may be substituted or unsubstituted, R2 represents a halogen atom, a hydroxy group, an unsubstituted amino group, a mercapto group, a cyano group, a sulfide group, a carboxy group or salt thereof, a sulfo group or salt thereof, a hydroxyamino group, a ureido group or a urethane group, m represents 1 or 2, and n represents an integer of 1 or larger. There is provided a novel heterocyclic ring-containing compound showing superior lubricant performance.
摘要:
Disclosed are a liquid crystal display provided with an optical compensatory sheet comprising an optically anisotropic layer which has negative birefringence and comprises a polymer having a discotic structure in its molecule, and an optical compensatory sheet which comprises a transparent support, an orientation layer provided thereon and the optically anisotropic layer provided on the orientation layer. Further, a process for preparation of the optical compensatory sheet and a liquid crystal composition which is useful as material for preparing the optical compensatory sheet are also disclosed.
摘要:
The novel impregnating oil composition for a sintered bearing is disclosed. The composition comprises a base oil, at least one compound represented by a formula (1). In the formula, D represents an m-valent cyclic group capable of binding to “m” of —X—R; each X represents a single bond or a bivalent linking group selected from the group consisting of NR1, where R1 is a hydrogen atom or a C1-30 alkyl group, oxygen, sulfur, carbonyl, sulfonyl and any combinations thereof; each R represents a substituted or non-substituted, alkyl group, alkenyl group, alkynyl group, aryl group or heterocyclic group, or a halogen atom, hydroxy, amino, mercapto, cyano, sulfide, carboxy or salt thereof, a sulfo or salt thereof, hydroxylamine, ureido or urethane; and m is an integer from 2 to 11.
摘要:
Disclosed is a lubricant composition containing a compound of formula (1) and a carboxylic acid, and exhibiting excellent lubrication potency. wherein D represents a cyclic group; X represents a single bond, a group NR1 (where R1 represents a hydrogen atom, or an alkyl group having from 1 to 30 carbon atoms), an oxygen atom, a sulfur atom, a carbonyl group, a sulfonyl group, or a divalent linking group of a combination thereof; R represents an alkyl group, an alkenyl group, an alkynyl group, an aryl group, or a heterocyclic group; m indicates an integer of from 2 to 11.
摘要:
A process for alignment of rod-like liquid crystal molecules comprises the steps of: forming an orientation layer for vertical alignment on a support; and forming a liquid crystal layer containing rod-like liquid crystal molecules on the orientation layer to align the rod-like liquid crystal molecules at an average inclined angle of 50 to 90°. The liquid crystal layer further contains a compound represented by the formula (I): (Hb—L1—Cy1—L2—)nCy2 (I) wherein Hb is an aliphatic group having 6 to 40 carbon atoms or an siloxanoxy group substituted with an aliphatic group having 6 to 40 carbon atoms, each of L1 and L2 is a single bond or a divalent linking group, Cy1 is a divalent aromatic group or a divalent heterocyclic group, n is 2, 3 or 4, and Cy2 is an n-valent aromatic group or an n-valent heterocyclic group.
摘要翻译:棒状液晶分子的排列方法包括以下步骤:在载体上形成用于垂直取向的取向层; 并在取向层上形成含有棒状液晶分子的液晶层,使棒状液晶分子的平均倾斜角为50〜90°。 液晶层还含有式(I)表示的化合物:其中Hb为碳原子数为6〜40的脂肪族基团或被碳原子数为6〜40的脂肪族基团取代的硅氧烷氧基,L 1, L 2为单键或二价连接基团,Cy 1为二价芳香族基团或二价杂环基团,n为2,3或4,Cy 2为n价芳香族基团 或n价杂环基。
摘要:
A novel lubricant composition is disclosed. The composition comprises the compound selected from the formula (1), where D represents an m-valent cyclic group capable of bonding to “m” of —X—R; Xs respectively represent a single bond or a bivalent linking group selected from the group consisting of NR1, where R1 is a hydrogen atom or a C1-30 alkyl group, oxygen, sulfur, carbonyl, sulfonyl and any combinations thereof; Rs respectively represent a substituted or non-substituted alkyl, alkenyl, alkynyl, aryl or heterocyclic group provided that at least one R contains an ester bond; and m is an integer from 2 to 11. And a novel compound represented by the formula (2), where X1 to X3 respectively represent a single bond or abivalent linking group selected from the group consisting of NR1, oxygen, sulfur, carbonyl, sulfonyl and any combinations thereof; and R11 to R13 respectively represent a substituted or non-substituted alkyl, alkenyl, alkynyl, aryl or heterocyclic group provided that at least one of them contains an ester bond; is also disclosed
摘要:
A grease composition comprising at least one polymer having a mesogen structure in the principal chain or in the side chain(s) thereof, and at least one viscous agent is disclosed. A viscous agent which is a discotic compound having, in the molecule thereof, a discotic core and three or more side chain groups radially extended from said discotic core is also disclosed. The discotic core and/or said side chain groups has at least one tautomeric group therein, and at least one side chain group of said three or more side chains has, at the end portion thereof, a long chain group in which 20 or more atoms selected from the group consisting of oxygen, carbon, nitrogen, silicon and sulfur atoms are linked in a straight-chain-like manner or in a branched manner.
摘要:
A novel process for producing 2,4,6-tris(hydroxyphenyl amino)-1,3,5-triazine is disclosed. The process comprises reacting a compound represented by a formula (I) and a compound represented by a formula (II) in the presence of a base in a mixed solvent of at least one organic solvent and water, to produce a compound represented by a formula (III): where Y represents a substituent, R1 represents a hydrogen atom or a substituent, m is an integer from 1 to 5, n is an integer from 0 to 4, and when n is 2 or larger, plural Y are same or different each other or plural Y may bond to each other.