Abstract: The purpose of the present invention is to provide a thermosetting epoxy resin composition with ability to allow cured products to have excellent toughness and to stably maintain high stiffness. In order to achieve the purpose, the thermosetting epoxy resin composition of the present invention includes the following components [a], [b], [c], and [d], wherein the stoichiometric ratio [b]/[a] of the component [b] to the component [a] is in the range from 0.7 to 2.0 thermosetting epoxy resin composition: [a] an epoxy resin; [b] an isocyanate curing agent; [c] an elastomeric toughening agent; [d] an oxazolidone cyclization catalyst.
Type:
Application
Filed:
December 2, 2021
Publication date:
December 28, 2023
Applicant:
TORAY INDUSTRIES, INC.
Inventors:
Shinya HAYASHI, Ko MATSUKAWA, Nobuyuki TOMIOKA
Abstract: The present invention addresses the problem of providing a polypropylene film which is structurally stable to heat in deposition when used for packaging, and has appropriate slipperiness without using an anti-blocking agent or particles, and thus has excellent water vapor barrier properties and oxygen barrier properties, in particular, when a transparent deposited layer is laminated. Moreover, the present invention provides a polypropylene film characterized by having at least two types of layers (A layer and B layer) containing a polypropylene-based resin as a main component, wherein the B layer contains a thermoplastic resin incompatible with a polypropylene-based resin, and when the skewnesses Ssk of the A layer and the B layer, as measured through three-dimensional noncontact surface shape measurement, are Ssk (A) and Ssk (B), respectively, the Ssk (B) is at least 5 and the Ssk (A) is less than 5.
Abstract: The present invention relates to a photosensitive resin composition having high sensitivity, high bending resistance for the cured film, and high long-term reliability for an organic EL display device in which the cured film is used. The present invention is a photosensitive resin composition containing an alkali-soluble resin (a), a phenolic resin (b) having a halogen atom, and a photosensitive compound (c).
Abstract: A laminated film has a resin layer on at least one surface of a polyester film, in which the resin layer is on at least one surface layer, the water contact angle of the resin layer is 85°-100°, inclusive, and |H2-H1|?1.0 (%) is satisfied, H1 (%) being the haze of the laminated film and H2 (%) being the haze of the laminated film after being immersed in a solvent and subjected to a rub test. This laminated film has excellent coating and releasability properties with respect to ceramic slurry.
Abstract: A solution for extracting substantially pure RNA from a biological sample is disclosed. The solution for extracting RNA from a biological sample containing RNA and at least DNA comprises: (a) phenol in an amount of more than 50% by volume based on the total amount of the solution; (b) a polyol in an amount of 3 to 10% by volume based on the total amount of the solution; (c) a guanidinium salt at a concentration of 0.5 to 2.0 M based on the total amount of the solution; (d) a thiocyanate at a concentration of 0.1 to 0.5 M based on the total amount of the solution; and (e) a buffer for maintaining the pH of the solution at 4 to 6.
Abstract: An epoxy resin composition is provided that is resistant to decomposition at high temperatures and a fiber-reinforced resin molding is provided that hardly suffers significant damage while being welded to another member even in the case where it is combined with a thermoplastic resin layer having a high melting point that works as an adhesive layer, as well as a prepreg that serves as a precursor therefor, where the epoxy resin composition includes an epoxy resin (A) that has a polycyclic aromatic hydrocarbon skeleton or a biphenyl skeleton and that has an epoxy equivalent weight of 220 g/eq or more and 290 g/eq or less and a polyamine compound having an average active hydrogen equivalent weight of 55 g/eq or more and 100 g/eq or less wherein the average epoxy equivalent weight over all epoxy resins contained is 160 g/eq or more and 255 g/eq or less.
Type:
Application
Filed:
October 27, 2021
Publication date:
December 21, 2023
Applicant:
Toray Industries, Inc.
Inventors:
Jun Misumi, Masato Honma, Kyoko Shinohara
Abstract: Disclosed is a scintillator panel comprising a substrate, a grid-like barrier rib formed on the substrate, a phosphor layer in cells divided by the barrier rib, and a reflective layer surrounding the side and the bottom of the phosphor layer, the scintillator panel comprising a part where the reflective layer surrounding the side of the phosphor layer is curved and a part where opposing surfaces of the reflective layer at the side of the phosphor layer are approximately parallel, wherein a ratio in a width direction of a part where the reflective layer at the bottom of the phosphor layer is curved to a part where the reflective layer at the bottom of the phosphor layer is flat is 10.0:0 to 1.0:9.0. The brightness of the scintillator panel is improved.
Abstract: A prepreg is described having good handleability and a low resin flow, facilitating the work in the process of a molded body and improving the dimensional accuracy of the molded body, where the prepreg includes a fiber substrate; and a resin layer containing a thermosetting resin composition containing at least components [A] and [B] below, stacked on one surface of the fiber substrate, wherein the fiber substrate is impregnated with a part of the thermosetting resin composition of the resin layer, the thermosetting resin composition having a complex viscosity ?3*24 at 24° C. of 20,000 to 100,000 Pa·s and a complex viscosity ?3*70 at 70° C. of 100 to 5,000 Pa·s, and a volatile amount of the thermosetting resin composition is 1 mass % or less when a total mass of the prepreg is 100 mass %.
Abstract: The purpose of the present invention is to provide a thermosetting epoxy resin composition that is excellent in terms of both pot life and fast curability at low temperatures and also a molded article that is prepared by thermally curing the thermosetting epoxy resin composition and is excellent in terms of both wet heat resistance and toughness. In order to achieve the purpose, the thermosetting epoxy resin composition of the present invention includes the following components [a], [b], [c], and [d], wherein the stoichiometric ratio of [b] to [a] is in the range from 0.5 to 2.0: [a] an epoxy resin; [b] an isocyanate curing agent; [c] a hydroxyl group capping agent; [d] an epoxy curing catalyst.
Type:
Application
Filed:
November 2, 2021
Publication date:
December 21, 2023
Applicant:
TORAY INDUSTRIES, INC.
Inventors:
Ko MATSUKAWA, Daisuke KONISHI, Nobuyuki TOMIOKA
Abstract: An object of the present invention is to obtain a fabric having superior water absorbency and sweat absorption/rapid drying while having anti-pilling qualities and a cotton-like texture. A woven/knitted article and a textile product material with good aesthetic properties and functionality, and good general physical properties are obtained which have anti-pilling qualities not obtained in conventional fabrics having a high synthetic fiber blend ratio, and functionality such as water absorbency, water absorption/rapid drying, and quick drying after laundering, which cannot be obtained in conventional cotton fabrics. The present invention is a woven/knitted article comprising one or more fibers selected from synthetic fibers, regenerated fibers, and semisynthetic fibers, the woven/knitted article including a spun yarn, which contains mass % or more of an aliphatic polyamide short fiber A having a single-fiber fineness of 0.
Abstract: A fiber-reinforced resin substrate is described in which a plurality of resins having differing properties are strongly composited, wherein the fiber-reinforced resin substrate is obtained by impregnating a thermoplastic resin (A) and a thermoplastic resin (B) into continuous reinforcement fibers, wherein a thermoplastic resin (A) layer, which comprises the thermoplastic resin (A) and is exposed at one surface, and a thermoplastic resin (B) layer, which comprises the thermoplastic resin (B) and is exposed at the other surface, form a boundary region, where at least some of the continuous reinforcement fibers exist in a manner spanning across the boundary region and both the thermoplastic resin (A) and the thermoplastic resin (B) are crystalline resins having a melting point of not less than 200° C.
Abstract: An object is to provide a fiber-reinforced resin that can be welded to another member via a thermoplastic resin and that is less likely to be damaged even when welded at a high temperature, wherein the fiber-reinforced resin includes a reinforcing fiber and has a cured epoxy resin region and a thermoplastic resin region disposed at the surface wherein aromatic rings account for 50% or more and 90% or less of the cured epoxy resin present in the cured epoxy resin region.
Type:
Application
Filed:
October 27, 2021
Publication date:
December 21, 2023
Applicant:
Toray Industries, Inc.
Inventors:
Jun Misumi, Kyoko Shinohara, Masato Honma
Abstract: Provided is an artificial leather that achieves both a soft texture and excellent durability, and a method for manufacturing the same, the leather comprising: a fibrous base material formed from superfine fibers having an average single fiber diameter of 0.1-10 ?m; and a polymeric elastic body, where the polymer elastic body comprises a compound having a hydrophilic group and a compound having an ethylene oxide skeleton, the content of the compound in the polymeric elastic body of the artificial leather being 0.1-5 parts by mass per 100 parts by mass of the polymeric elastic body.
Abstract: A partially separated fiber bundle includes a separated fiber section and an unseparated fiber section, being configured to give a ratio Amax/Amin of 1.1 or larger and 3 or smaller, when the number of fiber bundles contained in the width direction of the partially separated fiber bundle (fiber separating number: Nn) measured at a freely selected point Pn (where, n represents an integer of 1 to 100, and freely selected points Pn and Pn+1, excluding n=100, being 50 cm or more away from each other), is divided by a full width of Wn of the partially separated fiber bundle, to calculate the fiber separating number per unit width An, and assuming its maximum value as Amax and its minimum value as Amin.
Abstract: An object of the present invention is to provide a prepreg and a laminate for producing a laminate suitable as a structural material, which have excellent compressive strength and interlaminar fractural toughness values, and can be firmly integrated with another structural member by welding. The present invention provides a prepreg including the following structural components [A] reinforcing fibers, [B] a thermosetting resin, and [C] a thermoplastic resin, in which [B] has a rubbery state elastic modulus of 10 MPa or more at a temperature obtained by adding 50° C. to a glass transition temperature in a state in which a degree of cure is 90% or more, [C] is present in a surface of the prepreg, and the reinforcing fibers [A] are present, which are included in a resin area including {B] and a resin area including [C] across an interface between the two resin areas.
Type:
Grant
Filed:
May 15, 2020
Date of Patent:
December 12, 2023
Assignee:
TORAY INDUSTRIES, INC.
Inventors:
Jun Misumi, Masato Honma, Kyoko Shinohara, Noriyuki Hirano
Abstract: An inspection apparatus and method are described for detecting, with high accuracy, whether a structure contains defects, where the inspection apparatus comprises: an X-ray emitting means (1a, 1b) for emitting X-rays through two or more paths; one or more X-ray detection means (3) for detecting the X-rays passing through the a structure (2); a multiple position distance measurement means (4) for measuring the distance from the X-ray emitting means to the structure at a plurality of positions; and an image processing means (5).
Abstract: Disclosed are a genetically modified microorganism that can produce 3-hydroxyadipic acid and/or ?-hydromuconic acid in high yields, and the genetically modified microorganism. The genetically modified microorganism is a microorganism having an ability to produce 3-hydroxyadipic acid and/or ?-hydromuconic acid, in which the reaction to generate acetyl-CoA from pyruvic acid is enhanced and function of pyruvate kinase and/or phosphotransferase system is reduced.
Abstract: An object of the present invention is to provide an adsorbent, a filter medium, and an air filter that have good aldehyde removal performance that undergoes little deterioration over time, where the adsorbent is one in which an inorganic porous medium supports at least an amine-based compound and a compound having a sulfide group as a functional group.
Abstract: A fiber reinforced plastic molded body includes a layered body, a resin member, unidirectional fiber reinforced resins each constituted from a unidirectional continuous fiber, a matrix resin, and a woven fabric fiber reinforced resin of one or two or more layers, wherein when the layered body is divided into equal halves in its thickness direction, an amount of the resin member present in a region (R1) which is a side from a dividing center line whereon the woven fabric fiber reinforced resin is layered is referred to as Am1, and an amount of the resin member present in a region (R2) which is a side whereon the woven fabric fiber reinforced resin is not layered is referred to as Am2, Am2/Am1 is 2 to 25.
Abstract: A secondary battery electrode is provided that may achieve a non-aqueous electrolyte secondary battery having a high energy output density with a small amount of a conductive aid. The secondary battery electrode has a mixture layer containing graphene and a secondary battery active substance. The secondary battery electrode has a mean aspect ratio of 2.0 or greater in an electric conductive material portion from a cross section of the secondary battery electrode, as specified by the method described below.