Abstract: The present invention provides a resist underlayer film that has a wide focus position range within which a good resist shape can be obtained. A resist underlayer film-forming composition for lithography comprising a linear polymer that is obtained by a reaction of a diepoxy group-containing compound (A) with a dicarboxyl group-containing compound (B). The linear polymer has structures of the following formulae (1), (2), and (3) derived from the diepoxy group-containing compound (A) or the dicarboxyl group-containing compound (B): The linear polymer preferably contains a polymer obtained by a reaction of two diepoxy group-containing compounds (A) each having structures of Formulae (1) and (2) with a dicarboxyl group-containing compound (B) having a structure of Formula (3), or a polymer obtained by a reaction of a diepoxy group-containing compound (A) having a structure of Formula (1) with two dicarboxyl group-containing compounds (B) each having structures of Formulae (2) and (3).

Abstract: Disclosed in the present invention are a fluorine-containing polymerizable compound of the general formula (1) and a polymer compound obtained therefrom: where A represents a single bond, an oxygen atom, a sulfur atom, SO2, CH2, CO, C(CH3)2, C(CH3)(CH2CH3), C(CF3)2, C(CH3)(C6H5), CH2—C6H4—CH2 or a divalent organic group obtained by elimination of two hydrogen atoms from benzene, biphenyl, naphtharene, cyclohexene or fluorene; and a and b each independently represent an integer of 0 to 2 and satisfy a relationship of 1?a+b?4. The thus-obtained polymer compound combines adequate hydrophilicity and high transparency with low water adsorption of fluorine-containing compound.

Abstract: A two part, curable, epoxy composition useful for potting or sealing electrical devices for use in hazardous locations. Cured reaction products of the epoxy composition meet most or all UL 674 requirements and are useful to seal apertures in electrical equipment. Equipment sealed with the disclosed compositions can meet the UL 674 requirement.

Abstract: Curable composition comprising at least one epoxy resin and at least one curing agent selected from derivatives of 5-hydroxymethylfurfural. Curable dispersion, curable prepolymer composition and process for manufacturing it. Process for the manufacture of an epoxy thermoset, epoxy thermoset and method for adhering at least two substrates.

Abstract: 2-hydroxyethyl 2-oxo-1,3-dioxolane-4-carboxylates of formula (I): wherein one of R1 and R2 can be hydrogen. R1 and R2, if not hydrogen, and in each case independently of one another, are selected from straight-chain, branched or cyclic C1-22-alkyl groups, preferably C1-12-alkyl groups, C6-12-aryl groups, C6-18-aralkyl groups and C6-18-alkaryl groups, wherein R1 and/or R2, in each case independently of one another, may comprise at least one additional functional group, selected from hydroxyl groups, ether groups, ester groups, epoxy groups, and double bonds, and wherein R2 may be substituted with up to 10, preferably with 1 to 5, and in particular with 1 or 2 further 2-hydroxyethyl 2-oxo-1,3-dioxolane-4-carboxylic groups. The 2-hydroxyethyl 2-oxo-1,3-dioxolane-4-carboxylates can be prepared by reacting 2-oxo-1,3-dioxolane-4-carboxylic acid with epoxides and can be used for the preparation of hydroxyurethanes through reaction with amines, such as amine hardeners.

Abstract: Aspects described herein generally describe epoxy resins and methods of epoxy resin formation. In some embodiments, a resin includes the reaction product of one or more polythiols, one or more polyepoxides, one or more fillers and one or more amine catalysts. Polythiols have between two and about ten thiol moieties. Polyepoxides have between two and about ten epoxy moieties. One or more amine catalysts of the formula NR1R2R3, wherein each of R1, R2, and R3 is independently linear or branched C1-20 alkyl or two or more of R1, R2, and R3 combine to form cycloalkyl. The resin has a compressive strength of at least 14 ksi at 2% offset at 70° F. and at least 8 ksi at 2% offset at 190° F.

Abstract: A thermoset modified additive for asphalt mixture includes the following raw materials: resin, curing agent, promoter, flow agent, filler and additive, wherein the weight part proportions of the raw materials are: resin 35-70, curing agent 1-35, promoter 0-2.5, flow agent 0-6, filler 20-40 and additive 0-2. The asphalt mixture includes thermoset modified additive for asphalt mixture, matrix asphalt or modified asphalt and mineral aggregate, wherein the weight part proportions of the raw materials are: thermoset modified additive for asphalt mixture 1-5, matrix asphalt 2-8 and mineral aggregate 87-97. The thermoset modified additive for asphalt mixture is prepared by dry process modification technology; the prepared modified additive is powdery, has small particle size, and is easy to disperse in asphalt mixture; and the asphalt mixture prepared from the modified additive has simple operation process and low cost, and can be subjected to continuous production.

Abstract: Provided are a resin composition having excellent electrical characteristics and heat resistance after moisture absorption, and being also excellent in flowing characteristics at the time of production of a laminate, and a prepreg, a metal foil-clad laminate and a resin sheet using the same. Used is a resin composition comprising a bifunctional phenylene ether oligomer (a) having a polyphenylene ether skeleton, an aralkyl-based cyanate ester compound (b), a bisphenol-based cyanate ester compound (c), an epoxy resin (d), a brominated carbonate oligomer (e), an inorganic filler (f), an alkoxynaphthol-based polymerization inhibitor (g) and/or a thioether-based polymerization inhibitor (h).

Abstract: Disclosed herein is an adhesive composition for clutch disc application comprising of an epoxy resin of bisphenol A and epichlorohydrin, partially hydrogenated carboxylated nitrile butadiene rubber (HX-NBR) in solid form as a toughening agent in the ratio 80:20, and optionally with additives to obtain improved lap shear strength and cushioning properties.

Abstract: Provided is a semicarbazide composition comprising: a semicarbazide compound (A) having an amino group and a semicarbazide group; a semicarbazide compound (B-1) having a structure with a semicarbazide group substituted for the amino group of the semicarbazide compound (A); a semicarbazide compound (B-2) as a dimer of the semicarbazide compound (B-1); and a semicarbazide compound (B-3) as a trimer of the semicarbazide compound (B-1); the semicarbazide composition having an analysis area ratio (a) of 0.008% or more and 2% or less.

Abstract: An epoxy or hardener mixture comprising (a) optionally water, (b) at least one hardener or epoxy resin, and (c) from 0.1 to 20 weight percent, based on epoxy resin of at least one distyryl phenol, tristyryl phenol or cumylphenol based additive surfactant with phosphate or sulfonate end groups having the structure R—OXn-W wherein R designates a polystyrylphenol or cumylphenol, preferentially chosen from among distyrylphenol, tristyrylphenol or cumylphenol, and mixtures thereof, and wherein OX designates ethylene oxide and/or propylene oxide. The number of groups “n” varies from 0 to 200, and W designates H, sulfate (—SO3?) or phosphate (—PO3H or —PO2—OXnR). Freeze thaw resistance and improved stability is obtained in epoxy mixtures used in dispersion form. Improved pot life and cure time is obtained using either the epoxy mixture, the hardener mixture or a combination of the two in epoxy hardener formulations.

Abstract: A method for coating a surface of an electrically non-conductive substrate with powder coatings, the method comprising the following steps: providing a substrate to be coated, pre-heating the substrate to be coated to a temperature of 40 to 140° C. in order to decrease the surface resistance of the substrate to less than 1012 ohms, preferably to within the range of 1010 to less than 1012 ohms, electrostatically coating the surface with powder coating in a single layer, which powder coating comprises a reactive system which, in particular, cures into a thermoset, curing the powder coating layer at a temperature of 170° C. or less.

Abstract: The present invention is a resin composition characterized by being able to undergo elastic deformation, having little residual strain rate and exhibiting stress relaxation properties. More specifically, the present invention relates to a resin composition wherein the stress relaxation rate (R) and the residual strain rate ?, as measured in a prescribed extension-restoration test, are as follows: 20%?R?95% and 0%???3%.

Abstract: A liquid crystal alignment agent capable of forming a liquid crystal display element having good resistance to ultraviolet decay and no mura effect, a liquid crystal alignment film, and a liquid crystal display element having the same are provided. The liquid crystal alignment agent includes a polymer (A), a polysiloxane (B), a polymerizable compound (C) containing a benzophenone structure, and a solvent (D). The polymer (A) is obtained by reacting a mixture. The mixture includes a tetracarboxylic dianhydride component (a1) and a diamine component (a2). The polysiloxane (B) contains a polymerizable unsaturated group, wherein the polymerizable unsaturated group includes a group represented by formula (1-1), a group represented by formula (1-2), or a combination of the two.

Abstract: Described is an insulating layer-forming composition, which contains a binder based on epoxy-thiol. The inventive composition, its rate of expansion ratio is relatively high, allows coatings having the layer thickness, required for the respective period of fire resistance, to be applied in a simple and fast manner, while at the same time the layer thickness is reduced to a minimum and yet a high insulating effect can be achieved. The composition of the invention is particularly suitable for fire protection, in particular as a coating of metallic and non-metallic substrates, such as steel components, like columns, beams, trusses, in order to increase the period of fire resistance.

Abstract: The present invention is an epoxy resin composition characterized by containing component A (epoxy resin containing sulfur atoms in the molecule thereof); and component B (an epoxy resin composition containing an imidazole compound represented by formula (1), and at least one of the following components: component C (an imidazole compound represented by formula (2) below) or component D (an epoxy resin composition having at least one sulfur atom in the molecule. According to the present invention, it is possible to provide an epoxy resin composition which has outstanding stability when stored at room temperature, and which can be heat-cured at a relatively low temperature and over a short time, to give a resin with a high heat resistance when cured. (In formula (1), R1 represents a straight-chain or branched-chain alkyl group having 1 to 5 carbon atoms, or a hydroxymethyl group, R2 represents a straight-chain or branched-chain alkyl group having 1 to 5 carbon atoms, or a hydrogen atom.

Abstract: Amine terminated curing agents for curing water based epoxy resins wherein the equivalent weight of active hydrogen is from 85 g to 105 g obtained by reacting polyamine with salicylic acid and subsequently reacting with epoxy resin. The invention also relates to curing compositions, curable systems, and cured compositions and coatings including such curing agents. The cured coatings find application as coatings for floor surfaces, including surfaces where food use approval is required. The cured coatings have particular application for coating the flooring of shipping containers but the use is not so limited.

Abstract: A polycarbonate resin composition and a molded product produced from the same includes (a) polycarbonate resin; (b) polycarbonate-polysiloxane copolymer; (c) aromatic copolyester resin; and (d) glass fiber.

Abstract: A liquid crystal alignment agent capable of forming a liquid crystal display element having good resistance to ultraviolet decay and no mura effect, a liquid crystal alignment film, and a liquid crystal display element having the same are provided. The liquid crystal alignment agent includes a polymer (A), a polysiloxane (B), a photopolymerizable compound (C), and a solvent (D). The polymer (A) is obtained by reacting a first mixture. The first mixture includes a tetracarboxylic dianhydride component (a1) and a diamine component (a2). The polysiloxane (B) is obtained by reacting a polysiloxane compound and a carboxylic acid compound (b4) having a C4 to C50 long chain. The polysiloxane compound is obtained by reacting a second mixture including a silane compound (b1) containing a polymerizable unsaturated group and a silane compound (b2) containing an epoxy group.

Abstract: A copolymer is provided, which includes a chemical structure of: R is C1-6 alkylene group. T is a terminal group including C1-6 alkyl group, C3-6 cycloalkyl group, or C6-12 aromatic group. l is 0.05 to 0.3, m is 0.1 to 0.2, n is 0.5 to 0.8, l+m+n=1, x is 40 to 100, and o is 10 to 120. An epoxy resin composite is also provided, which includes 100 parts by weight of epoxy resin and 1 to 20 parts by weight of toughness enhancer such as the above copolymer.