An epoxy resin composition comprising an epoxy resin [A], an amine-based curing agent [B] and a block copolymer [C] as components, wherein the epoxy resin [A] contains [Aa] an epoxy resin having at least one structure selected from a condensed polycyclic structure, biphenyl structure and oxazolidone ring structure; [Ab] an epoxy resin selected from a polyfunctional amine type epoxy resin [Ab1] and a liquid bisphenol type epoxy resin [Ab2], and the block copolymer [C] is at least one block copolymer selected from the group consisting of S-B-M, B-M and M-B-M. The present invention provides an epoxy resin composition that can be cured to form a cured product excellent in heat resistance, elastic modulus and toughness.

Epoxy resin composition, prepreg, and fiber-reinforced composite material

Disclosed herein are articles for removing contaminants from a fluid, such as a liquid or gas, the article comprising carbon nanotubes, which comprise at least one molecule or cluster attached thereto or located therein, wherein the carbon nanotubes are present in the article in an amount sufficient to reduce the concentration of contaminants in fluid that come into contact with the article. A method of making the nanomesh material used in such articles is also disclosed, as are methods of purifying fluids using these articles.

Nanomesh article and method of using the same for purifying fluids

Disclosed is an image sensor including a photo-sensing device, a color filter positioned on the photo-sensing device, a microlens positioned on the color filter, and an insulation layer positioned between the photo-sensing device and the color filter, and including a trench exposing the photo-sensing device and a filler filled in the trench. The filler has light transmittance of about 85% or more at a visible ray region, and a higher refractive index than the insulation layer. A method of manufacturing the image sensor is also provided.

Image Sensor and Method for Manufacturing the Same

Material for forming an underlayer film for lithography, which has a high carbon concentration, a low oxygen concentration, a relatively high heat resistance and also a relatively high solvent solubility, and which can be applied to a wet process is disclosed. Material for forming an underlayer film for lithography contains a compound represented by general formula (1).

Underlayer film-forming material for lithography, underlayer film for lithography, and pattern formation method

A photoelectric conversion element comprises a first photoelectric conversion part, the first photoelectric conversion part comprising: a pair of electrodes (11,13); and a photoelectric conversion film (12) between the pair of electrodes, wherein the photoelectric conversion film comprises an organic photoelectric conversion material having an absorption peak in an infrared region of an absorption spectrum within a combined range of a visible region and the infrared region and generating an electric charge according to light absorbed, and the first photoelectric conversion part as a whole transmits 50% or more of light in the visible region.

Photoelectric conversion element and solid-state imaging device

PROBLEM TO BE SOLVED: To provide a polyester resin having both high refractive index and low birefringent properties. SOLUTION: The polyester resin includes a dicarboxylic acid component and a diol component as polymerizable components, wherein the dicarboxylic acid component is a dicarboxylic acid component containing an asymmetric monocyclic aromatic dicarboxylic acid component (e.g. an isophthalic acid dicarboxylic acid component) as a main component (e.g. in an amount of more than 50 mol% of the whole dicarboxylic acid components), and the diol component comprises a compound having a 9,9-bis(hydroxy(poly)alkoxyaryl)fluorene skeleton. The diol component may comprise a compound having a 9,9-bis(hydroxy(poly)alkoxyaryl)fluorene skeleton, and an aliphatic diol component. COPYRIGHT: (C)2011,JPO&INPIT

Polyester resin having fluorene skeleton

PROBLEM TO BE SOLVED: To obtain a fluorene-based composition having excellent diepersibility of an additive and capable of making the additive exhibit its function, by mixing a small amount of a fluorene compound into the composition, and to obtain a molded product of the same. SOLUTION: This fluorene-based composition contains the compound expressed by formula (I) [X 1 and X 2 are identical to or different from each other and are each a hydroxy, -O(AO) p H (A is a 2-3C alkylene; and p is an integer of 1 or more), amino or an N-monosubstituted amino; R 1 to R 4 are identical to or different from each other and are each a nonreactive group; m1 and m2 are identical to or different from each other and are each 0 or an integer of 1 to 3, and (m1+m2) is an integer of 1 to 6; and n1 to n4 are identical to or different from each other and are each an integer of 0 to 4; provided that (m1+n1) and (m2+n2) are each an integer of 0 to 5] or its derivative and the additive. The molded product is formed by using the composition. COPYRIGHT: (C)2005,JPO&NCIPI

Fluorene-based composition and molded product of the same

PROBLEM TO BE SOLVED: To provide a new fluorene skeleton-containing multi-functional (meth)acrylate which is excellent in handleability, although having a 9,9-bis(condensed multi-cyclic aryl) fluorene skeleton. SOLUTION: Provided is the (meth)acrylate represented by formula [wherein, a ring Z is a condensed multi-cyclic aromatic hydrocarbon ring such as naphthalene ring; R 1 is a substituent such as an alkyl group; R 2 is an alkylene group; R 3 is H or a methyl group; R 4 is a substituent such as a hydrocarbon group or an alkoxy group; (k) is an integer of 0 to 4; (m) is an integer of ≥1; (n) is 0 or an integer of ≥1; (p) is an integer of ≥1]. COPYRIGHT: (C)2009,JPO&INPIT

Multi-functional (meth)acrylate having fluorene skeleton

PROBLEM TO BE SOLVED: To provide a method for producing a fluorene skeleton-containing alcohol having extremely slight discoloration. SOLUTION: In producing a compound represented by formula (3) by reacting a fluorene compound represented by formula (1) with an alcohol represented by formula (2) in the presence of an acid catalyst and a thiol, the ratio of the alcohol used is ≥3 mol based on 1 mol of the fluorene and the ratio of the thiol used is ≥3 pts.wt. based on 100 pts.wt. of the fluorene. COPYRIGHT: (C)2011,JPO&INPIT

Method for producing fluorene skeleton-containing alcohol

PROBLEM TO BE SOLVED: To provide a photocatalyst filter having excellent air cleaning capability and durability which solves problems of conventional photocatalyst filters using activated carbon and photocatalyst and to provide an air cleaner and an exhaust gas treating device using the photocatalyst filter. SOLUTION: This invention relates to a filter body, an adsorbent containing carbon nanotubes and the photocatalyst filter including the photocatalyst. COPYRIGHT: (C)2004,JPO

昌宏山田

Papers

Polyester resin having fluorene skeleton

Fluorene-based composition and molded product of the same

Multi-functional (meth)acrylate having fluorene skeleton

Method for producing fluorene skeleton-containing alcohol

Photocatalyst and air cleaner using the same

昌宏 山田

Papers

Polyester resin having fluorene skeleton

Fluorene-based composition and molded product of the same

Multi-functional (meth)acrylate having fluorene skeleton

Method for producing fluorene skeleton-containing alcohol

Photocatalyst and air cleaner using the same

昌宏山田