Abstract: An object of the invention is to provide a poly(phenylene ether) resin composition that allows production of laminated sheets excellent in heat resistance and processability, even in case of using a low molecular weight PPE for convenience in prepreg manufacturing without the sacrifice of dielectric characteristics. The poly(phenylene ether) resin composition according to the present invention comprises poly(phenylene ether) and a crosslinking curing agent, wherein the poly(phenylene ether) is represented by the following formula (I) and the number averaged molecular weight thereof is in the range of 1,000 to 7,000. [wherein, X is an aryl group; (Y)m is a poly(phenylene ether) moiety; Z is a phenylene group and the like; R1 to R3 each independently is a hydrogen atom, and the like; n is an integer of 1 to 6; and q is an integer of 1 to 4.

Abstract: There is provided a flame-retardant resin composition which can maintain heat resistance at a high level and simultaneously provide low dielectric constant and low dielectric loss tangent while ensuring flame-retardancy without containing any halogen compound causing the generation of harmful substances. This flame-retardant resin composition comprises 0.1 to 200 parts by mass of a cyclophosphazene compound represented by the following formula (1): wherein n=3 to 25; and one of R1 and R2 is CN and the other is H, or both of R1 and R2 are CN, based on 100 parts by mass of a resin component containing a polyfunctional epoxy resin having a biphenyl aralkyl structure, wherein the ratio of cyanophenoxy groups in the compound is 2 to 98% of the total number of phenoxy groups and cyanophenoxy groups in the compound.

Abstract: An object of the invention is to provide a poly(phenylene ether) resin composition that allows production of laminated sheets excellent in heat resistance and processability, even in case of using a low molecular weight PPE for convenience in prepreg manufacturing without the sacrifice of dielectric characteristics. The poly(phenylene ether) resin composition according to the present invention comprises poly(phenylene ether) and a crosslinking curing agent, wherein the poly(phenylene ether) is represented by the following formula (I) and the number averaged molecular weight thereof is in the range of 1,000 to 7,000. [wherein, X is an aryl group; (Y)m is a poly(phenylene ether) moiety; Z is a phenylene group and the like; R1 to R3 each independently is a hydrogen atom, and the like; n is an integer of 1 to 6; and q is an integer of 1 to 4.

Abstract: An object of the invention is to provide a poly(phenylene ether) resin composition that allows production of laminated sheets excellent in heat resistance and processability, even in case of using a low molecular weight PPE for convenience in prepreg manufacturing without the sacrifice of dielectric characteristics. The poly(phenylene ether) resin composition according to the present invention comprises poly(phenylene ether) and a crosslinking curing agent, wherein the poly(phenylene ether) is represented by the following formula (I) and the number averaged molecular weight thereof is in the range of 1,000 to 7,000. [wherein, X is an aryl group; (Y)m is a poly(phenylene ether) moiety; Z is a phenylene group and the like; R1 to R3 each independently is a hydrogen atom, and the like; n is an integer of 1 to 6; and q is an integer of 1 to 4.

Abstract: Provided is a liquid crystal display device that makes it possible to prevent coating unevenness of a colored layer from occurring. The liquid crystal display device includes a first colored layer, a second colored layer and a third colored layer, which layers are formed in a display area. In the liquid crystal display device, the first colored layer is arranged in a grid pattern in a manner of surrounding the second colored layer and the third colored layer. In addition, when (n, m) denotes the coordinates of a pixel having a grid square formed therein in the display area, grid squares are omitted in at least pixels of (n?1, m?1), (n?1, m+1), (n+1, m?1) and (n+1, m+1).

Abstract: A method of manufacturing an array substrate comprising forming a plurality of scanning lines, a plurality of signal lines and a plurality of switching elements on a substrate, forming an under layer having a plurality of color layers overlapping the scanning lines, the signal lines and the switching elements, a plurality of base parts, and a plurality of protective parts located near the base parts and having a height equal to or greater than that of the base parts, polishing a surface of the under layer, and forming a plurality of pillar-shaped spacers on the base parts after the surface of the under layer has been polished.

Abstract: A projection pattern is formed so as to project to a colored film to which a part of colored film on an array substrate is adjacent. A recess pattern corresponding to the projection pattern is formed to the adjacent colored film. A columnar spacer is formed on the projection pattern. The columnar spacer does not override a color overlap portion of the colored films, and thus the variation in a cell gap between the array substrate and the counter substrate can be suppressed.

Abstract: An array substrate comprises a substrate, an underlayer including a plurality of switching elements formed on the substrate, a plurality of colored layers formed on the substrate and the switching elements, and a plurality of pixel electrodes provided on the colored layers and connected to the switching elements via contact holes formed in the colored layers, and a plurality of columnar spacers provided on the underlayer. The underlayer includes a plurality of same-structure portions extending perpendicular to the substrate. The columnar spacers are provided on the same-structure portions.

Abstract: A liquid crystal display device includes an array substrate, a counter-substrate, first pixel sections, second pixel sections, a liquid crystal layer, a color filter including first color layers, which form the first pixel sections, and second color layers which form the second pixel sections, and an undercoat insulation film including first light-transmissive inorganic parts, which form the first pixel sections and are set at such a film thickness that a wavelength at which a transmittance spectrum of the first pixel sections increases agrees with a wavelength at which a transmittance spectrum of the first color layers increases, and second light-transmissive inorganic parts which form the second pixel sections and are set at such a film thickness that a wavelength at which a transmittance spectrum of the second pixel sections increases agrees with a wavelength at which a transmittance spectrum of the second color layers increases.

Abstract: An object of the invention is to provide a poly(phenylene ether) resin composition that allows production of laminated sheets excellent in heat resistance and processability, even in case of using a low molecular weight PPE for convenience in prepreg manufacturing without the sacrifice of dielectric characteristics.

Abstract: An aromatic polyester carbonate comprising structural units represented by the following formulae (A), (B), (C), and (D) and satisfying the following relationship when the mole fractions of the structural units represented by the formulae (A), (B), (C), and (D) are defined as a, b, c, and d, respectively: ##EQU1## and having an inherent viscosity [.eta..sub.inh ] in a solution at a concentration of 0.5 g/dl in p-chlorophenol as a solvent at 50.degree. C. of 1.0 dl/g or higher, or being insoluble in the solvent, and having liquid crystal properties ##STR1## wherein R is the same or different and represent an alkyl, phenyl group or a halogen, and n represents an integer of 0 to 4; ##STR2## X.sup.1 represents a substituted or non-substituted phenyl group, an alkyl group having 3 to 6 carbon atoms or a halogen;X.sup.2 represents --O--, --S--, ##STR3## or --CH.sub.2 --; X.sup.3 may be the same or different and represents an alkyl group, phenyl group, or a halogen; and m represents an integer of 0 to 4.

Abstract: A soluble polyimide having a chain member substantially represented by the formula:--X--Y--wherein X represents the following structures (A) and (B): ##STR1## and Y represents the following structure (C): ##STR2## wherein R represents hydrogen, methyl, or ethyl. The polyimide has an inherent viscosity (.eta. inh) of 0.25 dl/g or more as determined at a temperature of 30.degree. C. in a solution of 0.5 g of the polyimide in 100 ml of o-chlorophenol.This polyimide has a high heat resistance, is soluble in some organic solvents, and is capable of forming a film.

Abstract: A soluble heat-resistant aromatic polyamide having amide bonds at the terminal ends thereof represented by the formula (I):R.sup.1 CO--NH--Y--NH--X).sub.n NH--Y--NHCOR.sup.1 (I)wherein R.sup.1 represents an alkyl group or aromatic group,Y represents ##STR1## wherein R.sup.2 represents hydrogen, methyl, or ethyl, X represents ##STR2## wherein Z represents an aromatic ring which may be substituted with an alkyl group, andn is a recurring unit number; said polyamide having an inherent viscosity (.eta..sub.inh) of at least 0.30 dl/g as measured in a solution of 0.5 g of the polyamide in 100 ml of dimethylacetamide at 30.degree. C.

Abstract: Disclosed is a process for the preparation of a naphthalene-2,6-dicarboxylic acid dialkali metal salt which comprises heating an alkali metal salt of naphthoic acid and/or a dialkali metal salt of naphthalene-dicarboxylic acid under pressure with carbon dioxide gas in the presence of a catalyst, wherein an aprotic polycyclic aromatic compound having 2 or 3 rings is used as a reaction medium. Naphthalene-2,6-dicarboxylic acid dialkali metal salt can be obtained in high yield and selectivity with a good reproducibility of the reaction.

Abstract: A heat-resistant polyamide having a repeating unit represented by the formula (I):--X--NH--Y--NH--(I)wherein X represents the structure (A): ##STR1## or the structure (A) and the structure (B) --C.sub.m H.sub.2m -- wherein R represents hydrogen, methyl, or ethyl and m is an integer of 2 to 8; and Y represents the structure (C) ##STR2## and the structure (D) --CO--C.sub.n H.sub.2n --CO-- wherein n is 2 to 6, provided that Y may be the structure (C) when X is the structures (A) and (B), said polyamide having an inherent viscosity (.eta..sub.inh) of at least 0.25 dl/g as determined at a temperature of 30.degree. C. in a solution of 0.5 g of the polyamide in 100 ml of dimethylacetamide.