Kansai Paint Company, Ltd.

Mikuni Corporation

Daisuke Takayama

Hironori Tonomura

Shuichi Nakahara

Naoto Matsushima

Naoki Tanaka

Toshiaki Ishii

Makoto Koyama

Hiroshi Kitagawa

Tatsuya Azuma

Munehiro Nakata

Keigo Suzuki

Katsunari Tobe

A valve device includes a body that defines a passage through which a fluid flows, a shaft that is movably supported with respect to the body and defines an axis, a valve element that is fixed to the shaft to open and close the passage; and a cylindrical bearing bush that movably supports the shaft with respect to the body, in which the bearing bush includes a mixed region in which a metal core material and expanded graphite are mixed with each other, and a first expanded graphite region made of only the expanded graphite such that the metal core material is not exposed in an inner circumferential side region in contact with an outer circumferential surface of the shaft.

Valve device

Provided is an exhaust valve devicefor a vehicle in which a valve elementis supported in an exhaust passageby a rotating shaftaxially supported by a valve body, a flexible joint memberis secured to an output shaftof a motor unitattached to the valve body, and a lower end of the flexible joint memberand an upper end of the rotating shaftare coupled via a rigid joint member, in which the rigid joint memberincludes: a sealing elementhaving a sealing surfaceand arm portions, the sealing surfacebeing coupled to one end of the rotating shaftand sealing an axially supported portion of one end of the rotating shaft to prevent exhaust gas from leaking, the arm portionsbeing formed in a periphery of the sealing surface; and a transmission elementhaving a spring grooveand engagement grooves, the spring groovebeing coupled to the end of the flexible joint member, the engagement groovesbeing engaged with the arm portionsof the sealing elementto restrict relative rotation.

Exhaust valve device for vehicle

A valve device of the present invention includes: a body () defining a passage () through which fluid flows; a valve shaft () pivotably supported by the body; a butterfly valve () fixed to the valve shaft to open and close the passage; and a drive unit () configured to impart a rotational drive force to the valve shaft. The body has a protrusion portion () formed integrally in a manner of protruding from an outer wall () of the body, and the drive unit () is fixed to the body () via the protrusion portion (). Accordingly, influence of heat of high-temperature fluid can be suppressed or prevented, and the opening and closing operation can be performed with high precision.

An exhaust valve device for a vehicle includes: a valve elementaxially supported by a rotating shaftin a boreof a valve bodyproduced through casting; sealing projectionsandintegrally formed on an inner circumferential surface of the boreto follow one side portionand the other side portionof an outer circumferential edge of the valve elementat a fully closed position; sealing surfacesandof the sealing projectionsand, the right side portionand the left side portionof the valve elementat the fully closed position abutting respectively on the sealing surfaces; R-shaped cornersandformed between the inner circumferential surface of the boreand the sealing surfacesand; and diameter enlarged portionsformed in the inner circumferential surface of the boreto enlarge the borethat are adjacent respectively to the sealing surfacesandof the sealing projectionsandand correspond to lengths of the sealing surfacesand, and the valve elementhas an outer shape enlarged to correspond to a height of the cornersandon an outer circumferential side with formation of the diameter enlarged portionsat the fully closed position.

The problem to be solved by the present invention is to provide an aqueous coating composition having an excellent finished appearance, such as smoothness and distinctness of image, as well as metallic feel and no metallic mottling when the composition comprises an effect pigment; excellent coating film performance, such as water resistance; and excellent storage stability. The present invention provides an aqueous coating composition comprising (A) acrylic resin particles, (B) a water-soluble acrylic resin, and (C) a phosphoric acid compound represented by a specific formula and having hydrocarbon (and optionally polyoxyalkylene); and also provides a method for forming a coating film, comprising applying the aqueous coating composition, as well as an article coated with the aqueous coating composition.

Aqueous coating composition

The problem to be solved by the present invention is to provide an aqueous coating composition that can form a multilayer coating film having excellent storage stability, excellent adhesion to plastic base materials, excellent finish, and excellent coating film performance, such as water resistance; and to also provide a coating method using the composition. The present invention provides an aqueous coating composition comprising (A) an aqueous dispersion of a modified polyolefin, (B) an aqueous acrylic resin and/or an aqueous polyester resin, and (C) a phosphoric acid compound represented by a specific formula; and also provides a method for forming a coating film, comprising applying the aqueous coating composition, as well as an article coated with the aqueous coating composition.

The problem to be solved by the present invention is to provide a method for forming a multilayer coating film using a 3-coat 1-bake process, the method comprising sequentially applying an aqueous first colored coating composition, an aqueous second colored coating composition, and a clear coating composition to a substrate and simultaneously heat-curing the resulting three layers to form a multilayer coating film having an excellent finished appearance, such as smoothness and distinctness of image, as well as metallic feel and no metallic mottling when the composition comprises an effect pigment, and exhibiting excellent coating film performance, such as water resistance. The present invention provides a method for forming a multilayer coating film by a 3-coat 1-bake process comprising sequentially applying an aqueous first colored coating composition, an aqueous second colored coating composition, and a clear coating composition to a substrate, and simultaneously heat-curing the resulting three layers to form a multilayer coating film, wherein the aqueous second colored coating composition contains (A) a film-forming resin and (B) a phosphoric acid compound represented by a specific formula.

Method for forming multilayer coating film

The problem to be solved by the present invention is to provide a method for forming a multilayer coating film using a 3-coat 1-bake process, the method comprising sequentially applying an aqueous first colored coating composition, an aqueous second colored coating composition, and a clear coating composition to a substrate and simultaneously heat-curing the resulting three layers to form a multilayer coating film having excellent smoothness and distinctness of image, as well as excellent coating film performance, such as water resistance. The present invention provides a method for forming a multilayer coating film by a 3-coat 1-bake process comprising sequentially applying an aqueous first colored coating composition, an aqueous second colored coating composition, and a clear coating composition to a substrate, and simultaneously heat-curing the resulting three layers to form a multilayer coating film, wherein the aqueous first colored coating composition (X) contains (A) a film-forming resin and (B) a phosphoric acid compound represented by a specific formula.

An object of the present invention is to provide an aqueous coating composition with excellent finished appearance and removability in bell cleaning, and a method for forming a multilayer coating film having excellent smoothness by a 3-coat-1-bake method including successively applying an aqueous first colored coating composition, an aqueous second colored coating composition, and a clear coating composition to a substrate, and heat-curing the resulting three layers of the multilayer coating film all at once. The present invention provides an aqueous coating composition containing an acrylic resin (A), a curing agent (B), and a urethane resin emulsion (C) with a weight average molecular weight of 2,000 to 50,000, the urethane resin emulsion (C) being prepared using constituent components containing a polyisocyanate component and a polyol component as starting materials, wherein the polyisocyanate component contains an alicyclic diisocyanate, and the polyol component contains a polycarbonate diol in an amount of 50 mass %, based on the total amount of the polyol component.

Water-based coating composition and method of forming multilayered coating film

An object to be achieved by the present invention is to provide a method capable of forming a multilayer coating film having excellent smoothness, distinctness of image, and chipping resistance, by a 3-coat 1-bake process comprising successively applying an aqueous first colored coating composition, an aqueous second colored coating composition, and a clear coating composition to a substrate, and heat-curing the resulting three layers of the multilayer coating film all at once. The present invention provides a method for forming a multilayer coating film, which employs a 3-coat 1-bake process comprising sequentially applying an aqueous first colored coating composition (X), an aqueous second colored coating composition (Y), and a clear coating composition (Z) on a substrate; and heat-curing the resulting three layers of the multilayer coating film all at once, wherein the aqueous first colored coating composition (X) contains an acrylic resin (A), a curing agent (B), and a urethane resin emulsion (C), and a first colored coating film formed from the aqueous first colored coating composition (X) has a water swelling rate of 100% or less and an organic solvent swelling rate of 300% or less.

Growing community of inventors

Kanagawa, Japan

Daisuke Takayama