Abstract: A fixing unit or device that can be used in an image forming apparatus includes a first heater element that is formed of a material that increases in electrical resistance with increases in temperature. A controller of the fixing unit is configured to vary a duty ratio of electric power applied to the first heater element during a start-up operation in which the temperature of the first heater element is raised to a target operating temperature. By varying the duty ratio during the start-up operation, changes in the resistance of the first heater element with the heating can be compensated. For example, the duty ratio can be increased during the course of the start-up to achieve the target operating temperature faster.

Abstract: Provided is a silicone based anti-foaming agent oil compound that has not only superior anti-foaming speed but also anti-foaming performance that does not degrade with repeated use or use over a long period. The silicone based anti-foaming agent oil compound comprises: (A) an essentially hydrophobic organopolysiloxane with a viscosity at 25° C. of 2,500 to 50,000 mPa·s: 20 to 80 parts by mass; (B) a hydrophobic organopolysiloxane or cyclic organopolysiloxane having silanol groups at least at both terminals: 20 to 80 parts by mass; (C) a silane or silane condensation product: 1 to 10 parts by mass; and (D) a fine powder silica with a specific surface area of 50 m2/g or more: 2 to 10 parts by mass; where the total amount of (A) and (B) combined is 100 parts by mass. Also provided is a method for manufacturing the silicone based anti-foaming agent oil compound.

Abstract: Provided is a silicone anti-foaming agent composition that not only has superior anti-foaming speed but also in which anti-foaming performance is not reduced even when used repeatedly or over a long period. The composition comprises: a polyorganosiloxane polymer crosslinked product having a polyoxyalkylene group, which includes: moiety structure (I): -R1-(R22SiO)d-R1(where R1 represents an alkylene group bonded to a silicon atom on the polysiloxane chain, R2 represents a monovalent hydrocarbon group, and d is 200 to 1000); and moiety structure (II): —(CeH2e)—O—(EO)x-(PO)y-(BO)z-R3 (where a single bond on the left end is bonded to a silicon atom on the polysiloxane chain, R3 represents a hydrogen atom, an alkyl group, an aryl group or an acyl group, e is 2 to 10, (x+y+z) is 40 to 100, x is 15 to 50, y is 15 to 50, and z is 0 to 50).

Abstract: The check valve (1) is of straight pipe joint type and oblique lift type. It includes: a valve seat (12a); a moving body (2) capable of linearly reciprocating between a closed state where it is in close contact with the valve seat and an open state where it is separated from the valve seat; a primary flow path (inflow path (12c)) on an upstream side of the moving body; and a secondary flow path (outflow path (12d)) on a downstream side of the moving body. The moving body includes a valve body (6) and a valve shaft (7) extending from the valve body. The valve seat supporting the valve body is formed to straddle the center line (CL) of the connection flow path that linearly extends including the primary flow path (inflow path) and the secondary flow path (outflow path 12d) in a cross section including the center line thereon.

Abstract: The check valve (1) is of straight pipe joint type and oblique lift type. It includes: a valve seat (12a); a moving body (2) capable of linearly reciprocating between a closed state where it is in close contact with the valve seat and an open state where it is separated from the valve seat; a primary flow path (inflow path (12c)) on an upstream side of the moving body; and a secondary flow path (outflow path (12d)) on a downstream side of the moving body. The moving body includes a valve body (6) and a valve shaft (7) extending from the valve body. The valve seat supporting the valve body is formed to straddle the center line (CL) of the connection flow path that linearly extends including the primary flow path (inflow path) and the secondary flow path (outflow path 12d) in a cross section including the center line thereon.

Abstract: An oil-in-water type silicone emulsion composition is provided that can be uniformly coated onto a substrate and can, upon removing water content, form a cured film with low surface tackiness and excellent adhesive properties to a substrate and film strength. The oil in water type silicone emulsion composition comprises: (A) 100 parts by mass of polyorganosiloxane having at least two hydroxyl groups or hydrolyzable groups bonded to a silicon atom in one molecule, where the viscosity at 25° C. is within a range of 100,000 mPa-s to 20,000,000 mPa-s; (B) 45 to 120 parts by mass of colloidal silica (based on solid fraction); (C1) 1 to 100 parts by mass of an ionic emulsifier; and (D) 0 to 500 parts by mass of water (excluding water content in component (B), if any). Optionally, the composition further comprises (C2) a polyoxyethylene-polyoxypropylene copolymerized nonionic emulsifier. The composition can be used as a surface treating agent.

Abstract: An aqueous coating film-forming composition is provided that can be coated uniformly on a silicone rubber surface without causing repelling or coating failure even when applied to the silicone rubber surface at a film thickness of 30 ?m or less, and forms an antifriction dry coating film that reduces friction and/or blocking of the substrate surface on the surface. The composition comprises (A) a solid lubricant, (B) a thickener, and (C) a silicone binder in the form of an oil-in-water silicone emulsion comprising (c1) an ionic emulsifier and (c2) a polyoxyethylene-polyoxypropylene copolymerized nonionic emulsifier. Water content is removed from the composition to form an antifriction dry coating film comprising 40 to 80 mass % of component (A), 0.50 to 10 mass % of component (B), 0.60 to 5 mass % of component (c2), and 5 to 49.5 mass % of component (C) (solid fraction). Applications thereof are also provided, e.g. airbag coatings.

Abstract: A water repellent agent composition contains a compound represented by the following General Formula (1) and a silicone resin: wherein in Formula (1), R31 represents a monovalent hydrocarbon group having 4 to 30 carbon atoms, R32 represents a hydrogen, a monovalent hydrocarbon group having 1 to 30 carbon atoms, or an organic group represented by —R36—N(R37)—R38 (in the formula, R36 represents a divalent hydrocarbon group having 1 to 30 carbon atoms, and R37 and R38 each independently represent a hydrogen or a monovalent hydrocarbon group having 1 to 30 carbon atoms), R33 represents a divalent hydrocarbon group having 1 to 30 carbon atoms, R34 and R35 each independently represent a hydrogen or a monovalent hydrocarbon group having 1 to 30 carbon atoms, a represents an integer of 0 to 2, and when a is 2, the plurality of R32 and R33 each may be identical or different.

Abstract: [Problem] To provide an aqueous coating agent composition (in particular, an aqueous coating composition for lubricating films that contains a solid lubricant) which as a whole is excellent in terms of flowability, applicability, and storage stability and which is capable of forming satisfactory and smooth coating films effective in stick-slip inhibition. [Solution] The problem can be solved with an aqueous coating agent composition which comprises (A) a curable resin in an aqueous emulsion form, (B) a surfactant, (C) solid particles, (D) one or more nitrogenous heterocyclic compounds, (E) a film-forming silicone in an aqueous emulsion form, and (F) water. In particular, it is preferable that the (C) component comprise a solid lubricant. In view of the environmental regulations, it is especially preferable that the (D) component be 1,3-dimethyl-2-imidazolidinone.

Abstract: A reciprocating body (2) has valve element (6) including deflecting surface (10a), valve shaft (7) guided by guide cylinder (4), and packing (8) having an annular shape circularly brought into close contact with valve seat (12a) in a state where the reciprocating body (2) is in a closed position. The valve element (6) includes large diameter portion (9a), and small diameter portion (9b) and deflecting portion (10). The large diameter portion (9a) has flange surface (9d) supporting the packing (8) in a state where the packing (8) is exposed to the primary flow passage side. The flange surface (9d) is formed such that the flange surface (9d) is allowed to come into contact with the valve seat (12a) via the packing (8). Recess (9c) is formed on the outer periphery of the small diameter portion (9b), and a portion of the packing (8) is fitted in the recess (9c).

Abstract: Disclosed is an oil-in-water type organopolysiloxane emulsion that is stable and has smaller particle diameters for a long period of time even in cases where a low-polarity organopolysiloxane and a cationic surfactant are used. The emulsion comprises: (A) 100 parts by weight of a diorganopolysiloxane having a viscosity of 2 to 100,000 mPa·s at 25° C., (B) 0.5 to 30 parts by weight of a cationic surfactant, (C) 0.1 to 10 parts by weight of a nonionic surfactant, and (D) 11 to 550 parts by weight of water, wherein a content of component (C) is equal to or less than a content of component (B), and wherein an average particle diameter of component (A) in the emulsion is 600 nm or less. Related methods and cosmetics are also disclosed.

Abstract: The first water repellent agent composition contains amino-modified silicone, a silicone resin, and a polyfunctional isocyanate compound. The second water repellent agent composition comprising dimethylpolysiloxane having a hydroxyl group and/or an alkoxy group having 1 to 3 carbon atoms, an amino group-containing silane coupling agent, a silicone resin, and a polyfunctional isocyanate compound.

Abstract: A reciprocating body (2) has valve element (6) including deflecting surface (10a), valve shaft (7) guided by guide cylinder (4), and packing (8) having an annular shape circularly brought into close contact with valve seat (12a) in a state where the reciprocating body (2) is in a closed position. The valve element (6) includes large diameter portion (9a), and small diameter portion (9b) and deflecting portion (10). The large diameter portion (9a) has flange surface (9d) supporting the packing (8) in a state where the packing (8) is exposed to the primary flow passage side. The flange surface (9d) is formed such that the flange surface (9d) is allowed to come into contact with the valve seat (12a) via the packing (8). Recess (9c) is formed on the outer periphery of the small diameter portion (9b), and a portion of the packing (8) is fitted in the recess (9c).

Abstract: A water repellent agent composition contains amino-modified silicone, a silicone resin, and alkylpolysiloxane. An amount of the alkylpolysiloxane mixed is 500 to 15,000 parts by mass with respect to 100 parts by mass of an amount of the amino-modified silicone mixed. A method for producing a water-repellent textile product includes a step of treating fibers with a treatment liquid including the water repellent agent composition.

Abstract: Provided is an oil-in-water-type emulsion composition which can be produced by directly emulsifying an organopolysiloxane having a high polymerization degree, contains substantially no oversized particle, and has a small average particle size. A method for producing the oil-in-water-type emulsion composition using a vertical batch mixer is also provided. The oil-in-water-type emulsion composition is an emulsion comprising (A) an organopolysiloxane having an overall viscosity of 1,000,000 mPa·s or more or having plasticity or a mixture thereof, (B) a surfactant, and (C) water. Component (A) is emulsified in water by the action of component (B), the average particle size of emulsion particles falls within the range from 0.1 to 7.5 ?m, and the content of emulsion particles each having a particle size 10 times or more larger than the average particle size is less than 5.0 vol %.

Abstract: [Problem] To provide an aqueous coating agent composition (in particular, an aqueous coating composition for lubricating films that contains a solid lubricant) which as a whole is excellent in terms of flowability, applicability, and storage stability and which is capable of forming satisfactory and smooth coating films effective in stick-slip inhibition. [Solution] The problem can be solved with an aqueous coating agent composition which comprises (A) a curable resin in an aqueous emulsion form, (B) a surfactant, (C) solid particles, (D) one or more nitrogenous heterocyclic compounds, (E) a film-forming silicone in an aqueous emulsion form, and (F) water. In particular, it is preferable that the (C) component comprise a solid lubricant. In view of the environmental regulations, it is especially preferable that the (D) component be 1,3-dimethyl-2-imidazolidinone.

Abstract: A reciprocating body (2) has valve element (6) including deflecting surface (10a), valve shaft (7) guided by guide cylinder (4), and packing (8) having an annular shape circularly brought into close contact with valve seat (12a) in a state where the reciprocating body (2) is in a closed position. The valve element (6) includes large diameter portion (9a), and small diameter portion (9b) and deflecting portion (10). The large diameter portion (9a) has flange surface (9d) supporting the packing (8) in a state where the packing (8) is exposed to the primary flow passage side. The flange surface (9d) is formed such that the flange surface (9d) is allowed to come into contact with the valve seat (12a) via the packing (8). Recess (9c) is formed on the outer periphery of the small diameter portion (9b), and a portion of the packing (8) is fitted in the recess (9c).

Abstract: The first water repellent agent composition contains amino-modified silicone, a silicone resin, and a polyfunctional isocyanate compound. The second water repellent agent composition comprising dimethylpolysiloxane having a hydroxyl group and/or an alkoxy group having 1 to 3 carbon atoms, an amino group-containing silane coupling agent, a silicone resin, and a polyfunctional isocyanate compound.

Abstract: Disclosed is an oil-in-water type organopolysiloxane emulsion that is stable and has smaller particle diameters for a long period of time even in cases where a low-polarity organopolysiloxane and a cationic surfactant are used. The emulsion comprises: (A) 100 parts by weight of a diorganopolysiloxane having a viscosity of 2 to 100,000 mPa·s at 25° C., (B) 0.5 to 30 parts by weight of a cationic surfactant, (C) 0.1 to 10 parts by weight of a nonionic surfactant, and (D) 11 to 550 parts by weight of water, wherein a content of component (C) is equal to or less than a content of component (B), and wherein an average particle diameter of component (A) in the emulsion is 600 nm or less. Related methods and cosmetics are also disclosed.

Abstract: A torque transmission joint has a shock-absorbing member between a drive shaft and a driven shaft. When the drive shaft is rotated in one direction, forces due to torque transmitted from the drive shaft to the driven shaft act inward in a radial direction of the shock-absorbing member on held sections that are held between one side surfaces in the circumferential direction of drive-side arm sections that are positioned in the front side in the one direction of rotation of the drive shaft, and side surfaces in the circumferential direction of driven-side arm sections that are positioned on the rear side in the one direction of rotation of the drive shaft.