Abstract: The friction material composition, friction material and friction member are provided, in which copper, having serious environmental effects, is not contained or is not contained at more than 0.5 mass % of copper, rust adhering force is low, rust delamination is difficult to occur, the friction material composition includes a binder, an organic filler, an inorganic filler, and a fibrous substrate, wherein the friction material composition contains no copper as an element or contains not more than 0.5 mass % of copper, and contains fibrillated aramid fiber as the fibrous substrate, 0.2 to 2 mass % of sodium carbonate and 2.5 to 10 mass % of calcium hydroxide.

Abstract: A friction material composition that does not contain copper, which has a high environmental load, or containing copper in such small amount as to be not more than 0.5 mass % and that enables decrease in brake vibration in braking at high temperatures when used in a friction material such that for an automobile disc brake pad, is provided. A friction material obtained by molding the friction material composition is also provided. The friction material composition contains a binder, an organic filler, an inorganic filler, and a fibrous base material, and the friction material composition contains no copper as an element or contains not more than 0.5 mass % of copper, and also contains 2 to 5 mass % of steel fibers that have fiber lengths of 2500 ?m or less.

Abstract: The friction material composition, friction material and friction member are provided, in which copper, having serious environmental effects, is not contained or is not contained at more than 0.5 mass % of copper, rust adhering force is low, rust delamination is difficult to occur, the friction material composition includes a binder, an organic filler, an inorganic filler, and a fibrous substrate, wherein the friction material composition contains no copper as an element or contains not more than 0.5 mass % of copper, and contains fibrillated aramid fiber as the fibrous substrate, 0.2 to 2 mass % of sodium carbonate and 2.5 to 10 mass % of calcium hydroxide.

Abstract: The friction material and friction member are provided, in which copper, having serious environmental effects, is not contained or is not contained at more than 0.5 mass % of copper, rust adhering force is low, rust delamination is unlikely to occur, the friction material composition includes a binder, an organic filler, an inorganic filler, and a fibrous substrate, wherein the friction material composition contains no copper as an element or contains not more than 0.5 mass % of copper, and contains fibrillated aramid fiber as the fibrous substrate, and wherein porosity measured by oil immersing method is not more than 15% and sulfate ion concentration measured by ion chromatography is not more than 500 ppm.

Abstract: A friction material composition that enables a friction material, which contains no copper or contains not more than 0.5 mass % of copper, to maintain sufficient friction coefficient in fade conditions at high speed such that brake temperature rises abnormally by repeated rapid braking at deceleration of 0.8 G from a vehicle speed of 200 km/h, is provided. A friction material obtained by molding the friction material composition is also provided. The friction material composition contains a binder, an organic filler, an inorganic filler, and a fibrous base material, and the friction material composition contains no copper as an element or contains not more than 0.5 mass % of copper, and also contains 2 to 5 mass % of steel fibers that have fiber lengths of 800 ?m or more.

Abstract: The friction material composition has superior conductivity of a friction material, superior adherence of a coating during powder coating, superior film formation of coating and superior abrasion resistance without containing copper having serious environmental effects, the friction material composition includes a binder, an organic filler material, an inorganic filler material, and a fibrous substrate material, wherein the friction material composition contains 8 to 35 mass % of ferrosoferric oxide (Fe3O4).

Abstract: A friction material composition that does not contain copper, which has a high environmental load, or containing copper in such small amount as to be not more than 0.5 mass % and that enables decrease in brake vibration in braking at high temperatures when used in a friction material such that for an automobile disc brake pad, is provided. A friction material obtained by molding the friction material composition is also provided. The friction material composition contains a binder, an organic filler, an inorganic filler, and a fibrous base material, and the friction material composition contains no copper as an element or contains not more than 0.5 mass % of copper, and also contains 2 to 5 mass % of steel fibers that have fiber lengths of 2500 ?m or less.

Abstract: A friction material composition includes a binder, organic filler, inorganic filler and fiber reinforcement, and does not contain copper or contains copper in an amount of 0.5 mass % or less. The inorganic filler is one or more selected from y alumina having an average particle size of 10 nm to 50 ?m, dolomite having an average particle size of 1 to 20 ?m, calcium carbonate having an average particle size of 1 to 20 ?m, magnesium carbonate having an average particle size of 1 to 20 ?m, manganese dioxide having an average particle size of 1 to 20 ?m, zinc oxide having an average particle size of 10 nm to 1 ?m, magnetite having an average particle size of 1.0 ?m or less, cerium oxide having an average particle size of 0.5 to 5 ?m, and zirconia having an average particle size of 5 to 50 nm.

Abstract: Using a friction material composition comprising: a fiber; a friction adjusting material; a binding material; and an uncrosslinked rubber being solid at normal temperature (25° C.), a friction material is obtained, wherein an ambient compressibility in a piston-pressing direction is 2% or less at normal temperature (25° C.) and at 4 MPa, and a tan ? value in a sliding direction at ?20° C. to 50° C. is 0.05 or larger. Thereby, a friction material which has high damping properties and acceptable brake noise, which can prevent a decrease in responsiveness when brakes are applied, and prevent a decrease in the feeling of effectiveness associated therewith, and which can suppress a decrease in the fuel efficiency and an increase in abrasion caused by the dragging occurring when the friction material is brought into contact with a brake rotor; and a method for producing the friction material, can be provided.

Abstract: The present invention is to provide a friction material composition comprising a fibrous material except for asbestos, an inorganic friction regulating agent, an organic friction regulating agent and a binder, wherein active alumina is contained as the inorganic friction regulating agent, and a fluorine series polymer is contained as the organic friction regulating agent, and to provide a friction material using the friction material composition.

Abstract: A thermal bonding method wherein at least two members are thermally bonded to each other with an adhesive by pressing and heating a laminate formed by laminating at least two members on each other with the adhesive interposed therebetween, comprising placing at least one member of the laminate close to a heated radiation heater and pressing the laminate in a radiation heat-applied state; and an apparatus comprising a radiation heater, a supporting member for supporting the laminate with at least one member of the laminate placed close to the radiation heater, and a pressing unit adapted to approach, contact and press the laminate supported by the supporting member and then move away from the laminate to stop applying a pressure to the same.