49results about How to "Less peeling" patented technology

An aluminum oxde-coated article has a first coating layer and a second coating layer formed in this order on a substrate, the first coating layer having a single- or multi-layer structure and being made of at least one selected from the group consisting of carbides, nitrides, carbonitrides, oxides, oxycarbides, oxynitrides and oxycarbonitrides of metals in Groups IVa, Va and VIa of the Periodic Table, and the second coating layer being constituted by at least one alpha-aluminum oxide-based oxide layer, which has an equivalent X-ray diffraction peak ratio PR (1 0 10) of 1.3 or more in a (1 0 10) plane.

A semiconductor module includes a circuit substrate composed of a wiring pattern, an electrical insulating layer and a thermal radiation board, and in use is fixed to an external thermal radiation member, in which the electrical insulating layer is composed of a thermal conductive mixture containing 70-95 wt % of an inorganic filler and 5-30 wt % of a thermosetting resin. A warping degree of the circuit substrate with respect to the external thermal radiation member is at most 1/500 of a length of the substrate, and the circuit substrate warps to protrude toward the thermal radiation board as the temperature rises. Accordingly, the thermal radiation property does not deteriorate even when the temperature rises in use. At a time of fixing the circuit substrate to the external thermal radiation member, the thermal resistance is kept to be a sufficiently low level. The thermal resistance is kept in a low level without sacrificing the contact between a module and the external thermal radiation member even at a high temperature during an operation of the device or the like, and the thermal conductive substrate is resistant to fractures or cracks and thus is highly reliable.

An ink composition is prepared by incorporating water, a colorant and a polyester resin in which a polybasic carboxylic acid ingredient contains an aromatic dicarboxylic acid having a metal sulfonate group. The ink composition is stored in an ink tank of an ink head, the ink composition is supplied from the ink tank into an ink chamber having a discharge port, a voltage is applied to partition wall portions formed of a piezoelectric material, a pressure is applied to the ink composition contained in the ink chamber by the partition wall portions and liquid droplets of the ink composition are discharged from the discharge port and deposited on a recording material thereby recording images.

The present invention provides hot melt adhesives for disposable products. The hot melt adhesives may be applied at high-speed and at low temperature ranges. The hot melt adhesives also provide excellent adhesion to polyethylene and a nonwoven fabric. The hot melt adhesive comprises (A) a thermoplastic block copolymer, which is a copolymer of a vinyl-based aromatic hydrocarbon with a conjugated diene compound; and (B) a propylene homopolymer having a melting point of 100° C. or lower, which is obtainable by polymerizing propylene using a metallocene catalyst. The disposable products are produced at high-speeds and low temperature with the inventive hot melt, and therefore, the disposal products are produced efficiently and safely, and a nonwoven fabric and a polyethylene film of the disposable products are less likely to peel.

In a laminate type ceramic electronic component, when an external electrode for a laminated ceramic capacitor is formed directly by plating onto a surface of a component main body, the film that is directly plated may have a low fixing strength with respect to the component main body. As the external electrode, a first plating layer composed of a Ni—P plating film with a P content rate of about 9 weight % or more is first formed such that a plating deposition deposited with the exposed ends of respective internal electrodes as starting points is grown on at least an end surface of a component main body. Then, a second plating layer composed of a Ni plating film containing substantially no P is formed on the first plating layer. Preferably, the first plating layer is formed by electroless plating, whereas the second plating layer is formed by electrolytic plating.

The present invention provides a method for detecting biochemical oxygen demand. Active sludge, surface water, domestic waste water, or industrial waste water comprising microorganism is taken as a water sample with microorganism in the method provided by the present invention. The water sample with microorganism is cultivated to obtain a microorganism film. The blank water sample and the target water sample are made to pass through the microorganism film respectively. The dissolved oxygen reduction current values of the blank water sample and the target water sample are detected. The difference value between the dissolved oxygen reduction current value of the target water sample and that of the blank water sample is obtained. On the basis of the difference value and the predetermined standard curve, the biochemical oxygen demand of the target water sample is acquired. The method provided by the present invention adopts active sludge, surface water, domestic waste water, or industrial waste water comprising microorganism as the water sample with microorganism. The environmental adaptability of the prepared microorganism film is strong, so that one or more of tap water, well water, atmospheric water, or ground water may serve as medium to maintain the physiological activity with no need of providing a buffer solution system.

A silicon carbide substrate having a surface is prepared. A coating film made of a first material is formed directly on the surface of the silicon carbide substrate. A mask layer made of a second material is formed on the coating film. The first material is higher in adhesiveness with silicon carbide than the second material. A first opening is formed in the mask layer. First impurity ions for providing a first conductivity type are implanted into the silicon carbide substrate by using ion beams passing through the first opening in the mask layer and through the coating film.

It is an object of the present invention to provide a surface-treated copper foil comprising an electrodeposited copper foil with a chromium-free rust-proofing layer which exhibits good performance in peel strength and resistance to peel loss after chemical treatment as a printed wiring board. To achieve this object, a surface-treated copper foil comprising an rust-proofing layer and a silane coupling agent layer formed on the bonding surface of an electrodeposited copper foil to an insulating resin substrate, wherein the rust-proofing layer comprises a nickel layer having a thickness by weight of 5 to 40 mg/m² and a tin layer having a thickness by weight of 5 to 40 mg/m² stacked in this order, and the rust-proofing layer is provided with the silane coupling layer on the surface is applied. Also a surface-treated copper foil coated with a very thin primer resin layer, comprising the surface-treated copper foil according to the present invention (without roughening treatment), and a very thin primer resin layer having a thickness by calculation of 0.5 to 5-micron meter provided on the bonding surface of the surface-treated copper foil to the insulating resin substrate is applied.

To provide an inexpensive gas dispersion plate having a high corrosion resistance to halogen-based corrosive gasses and a plasma thereof, and capable of preventing particle generation from the gas hole, thereby contributing to an improvement in the production yield of the semiconductor devices. The gas dispersion plate includes one or plural gas holes in a base material formed by a Y₂O₃ ceramic material having a relative density of 96% or more, in which an edge part of the gas hole is formed by a sand blasting process into a rounded shape with a radius of curvature of 0.2 mm or more.

The invention discloses a production technology of pattern leather, and belongs to the technical field of leather production. The technology comprises the steps of performing a leather pretreatment process, performing an finishing process and performing a post treatment process, wherein in the step of performing the post treatment process, leather subjected to the finishing process is pasted with a film, then glycol ether (ECS) is sprayed to a film pasted surface of the leather, and finally the pattern leather is obtained by paint coating. The pattern leather produced by the production technology is consistent and uniform in color; various colored leather products can be presented by pasting the films, so that the requirements of a customer are met; in addition, the phenomena of layer falling of the film pasted leather after the paint coating can be reduced greatly only by adopting a glycol ether surface breaking method; the brightness maintaining valid time after paint film forming is long; and a color fresh preservation degree is high.

The present invention allows reduction in high frequency noise of a spark plug. A Fe-containing oxide layer is formed on the surface of a beneath-flange rod-shaped portion, of a metal terminal of the spark plug, between a terminal flange portion and an upper end of a metal shell. The surface area of the Fe-containing oxide layer is not less than 10% of the surface area of the beneath-flange rod-shaped portion.