摘要:
Formulations and coatings that seal and protect sensitive natural porous stone, such as, calcareous stone from acid etching. The formulations include one-part and two-part formulations for coating calcareous stones in interior and exterior environments. Various formulations of the invention may include an acrylic hybrid polymer dispersion, a polyurethane dispersion binder, and water. The polyurethane dispersion binder may include one or more acrylic urethane hybrid polymer dispersions or acrylic dispersions or acrylic hybrid polymer dispersions. The acrylic hybrid polymer dispersion may be an epoxy-acrylic hybrid polymer dispersion. The two-part formulations may further include a first hydroxyl function acrylic binder dispersion and a second epoxy functional silane hardener that are mixed together to form the coatings of the invention.
摘要:
A golf ball composed of a core and a cover has a spin rate and a launch angle on approach shots at a head speed (HS) of 20 m/s or 10 m/s that satisfy formulas (1) and (2) below:
摘要:
Provided is an encapsulation resin composition that is suitable for encapsulating a semiconductor element-mounted surface of a substrate with a semiconductor element(s) mounted thereon or a semiconductor element-forming surface of a wafer with a semiconductor element(s) formed thereon, and is superior in low warpage property and grindability. The encapsulation resin composition of the present invention contains:
(A) a maleimide compound having at least one dimer acid frame-derived hydrocarbon group per molecule; (B) a reaction initiator; and (C) an inorganic filler surface-treated with a silane coupling agent,
wherein the component (C) has a maximum particle size of not larger than 40 μm.
摘要:
A composition including a first monomer including a hydroxy group, a second monomer that does not include a hydroxy group, a third monomer including a terminal heterocyclic group, a fourth monomer including an alkylene glycol, an oligomer, a silane coupling agent, and a photoinitiator. The composition has a viscosity of 5 centipoise to 50 centipoise at about room temperature.
摘要:
Provided are a molded article that contains a polyarylene sulfide (PAS) resin and a glass fiber and allows a decrease in mechanical strength to be suppressed even in a hot water environment and under acidic conditions, a PAS resin composition capable of providing such a molded article, and methods for producing the same. More specifically, provided are a PAS resin composition including, per 100 parts by mass of a PAS resin, 10 to 100 parts by mass of a glass fiber having, in the glass fiber, a ZrO2 content of 16 mass % or more, a TiO2 content of 5 to 10 mass % or less, and a CaO content of 0.1 to 5 mass %, and 0.01 to 10 parts by mass of a silane coupling agent (C) blended as essential components; a molded article; and methods for producing the same.
摘要:
Moisture-curable resin compositions comprising (a) a moisture-curable polymer having at least one hydrolysable silyl group; (b) a reactive modifier; (c) a catalyst for catalyzing the reaction between the moisture-curable polymer (a) and reactive modifier (b) under curing conditions; and cured compositions produced by contacting such resin compositions with water are disclosed. The moisture-curable resin composition is useful in the production of adhesives, including hot melt adhesives, primers, sealants, and coatings.
摘要:
An object of the present invention is to provide a rubber composition in which processability, an abrasion resistance and a rolling resistance can be consistent well in a tire to a high degree, and parts and members for the tire. Also, an object of the present invention is to inhibit a shrink of the rubber composition.In the present invention, the rubber composition is blended with 90 to 130 parts by weight of carbon black having a large particle diameter based on 100 parts by mass of the rubber component, and a glycerin fatty acid ester composition, whereby the carbon black having a large particle diameter is improved in dispersibility in the rubber composition. This allows the unvulcanized rubber composition to be enhanced in a processability by reducing a viscosity thereof, and the rubber composition for a tire which is improved in an abrasion resistance, rolling resistance and a processability, and a tire produced by using the above rubber composition are provided.
摘要:
The invention provides polyurethane and polyisocyanurate foams and methods for the preparation thereof. More particularly, the invention relates to polyurethane and polyisocyanurate foams having an open-cell, closed-cell or a combination of open and closed cell structure, and methods for their preparation. The foams are produced with a polyol premix composition which comprises a combination of a hydrohaloolefin blowing agent, a polyol and a catalyst which is an adduct of an amine and an organic acid.
摘要:
A flattening film forming composition for a hard disk that can prevent a magnetic material from migrating to the nonmagnetic layer, including a photopolymerizable coating material containing at least one polymer selected from a homopolymer that has a divinyl aromatic compound-derived unit structure and a copolymer having the unit structure or containing a mixture of the polymer and a photopolymerizable compound. The photopolymerizable compound may include an acrylate group, a methacrylate group, or a vinyl group. The polymer may be a copolymer further containing an addition polymerizable compound as a component to be copolymerized. A method for producing a hard disk, including: a first step of forming projections and recesses on a magnetic body; a second step of coating the projections and recesses with the flattening film forming composition; and a third step of flattening the coating by means of etching and exposing a surface of the magnetic body.
摘要:
A rubber composition capable of improving all of processability, abrasion resistance, rolling resistance property and wet skid performance and a pneumatic tire using the same are provided. A rubber composition comprising 25 to 100 parts by weight of a surface-treated silica based on 100 parts by weight of a rubber component comprising a natural rubber and/or a diene synthetic rubber, the surface-treated silica being obtainable by mixing a silica and a sulfur-containing organic silicon compound represented by the general formula (1): or the general formula (2): in an amount of 1 to 20 parts by weight of the sulfur-containing organic silicon compound on the basis of 100 parts by weight of the silica under a temperature of 130° to 180° C.