摘要:
An insulating substrate having a layer of an adhesive composition comprising (A) a modified phenolic resin and (B) acrylonitrile-butadiene rubber on at least one surface of a substrate is suitable for producing printed circuit boards having excellent solder heat resistance by an additive process.
摘要:
A baseboard having through-holes for a printed circuit board which baseboard is made from a metal as a substrate, comprising at least one resin coat layer formed on the overall surface of the metal substrate including the inner wall surfaces of the through-holes and having, at the circumferential angular portions of the through-holes, a thickness larger than that on said upper and said lower surface of the metal substrate, and featured by its increased insulation characteristics at the circumferential angular portions of the through-holes.
摘要:
A baseboard having through-holes for a printed circuit board which baseboard is made from a metal as a substrate, comprising at least one resin coat layer formed on the overall surface of the metal substrate including the inner wall surfaces of the through-holes and having, at the circumferential angular portions of the through-holes, a thickness larger than that on said upper and said lower surface of the metal substrate, and featured by its increased insulation characteristics at the circumferential angular portions of the through-holes, and a method of producing the same.
摘要:
A rotating apparatus for orienting transformer core plates during feed to a laminating station by a conveyer. The apparatus includes a plurality of level guides disposed at spaces between each of plural spaced conveying belts of the conveyer, the level guides including top ends which rise above an upper surface level of the conveying belts while the plate is lifted and rotated by rotating device, and descend to below the upper surface level of the conveying belts when the plate is translated by the conveying belts after the rotation, so that the plate rotates to slide on the level guides.
摘要:
A process for producing adhesive film comprising coating on a filmlike substrate a composition comprising (i) a copolymer having a glass transition temperature of -30.degree. C. or lower and obtained from one or more monomers (a) such as alkyl acrylates or methacrylates, or the like, and another monomers (b) containing at least one carboxyl, alcoholic hydroxyl, or glycidyl group, (ii) a crosslinking agent having at least two crosslinkable functional groups which can react with the monomers (b), (iii) one or more monofunctional addition polymerizable monomers having a boiling point of 200.degree. C. or higher, (iv) one or more polyfunctional addition polymerizable monomers having a boiling point of 200.degree. C. or higher, and (v) a photochemical initiator, and irradiating said composition with actinic light, is advantageous in that the amount of solvent to be removed after coating the composition on the substrate can be reduced remarkably without lowering properties of the resulting adhesive film.
摘要:
An apparatus for laminating plates having guide holes for aligning each plate to a predetermined position. A horizontal base is provided for stacking the plates thereon. A conveyor device conveys the plates to a predetermined position over the horizontal base one by one, the conveyor device dropping the plates on the horizontal base from the predetermined position so as to laminate the plates to each other. A guide device including guide pins which are disposed perpendicular to the conveyed plate at the predetermined position above the conveying device, the guide pins moving together with the falling plate to engage in the guide holes, respectively, to align each of the plates along the guide pins while laminating the plate on the horizontal base, and to return the guide pins to the initial position thereof.
摘要:
A steam iron comprising a base incorporating a heater, a heat-insulating cover which covers the top surface of the base, a handle unit connected to the heat-insulating cover at its rear portion, and a water tank mounted on the top front portion of the heat-insulating cover capable of being removed forward. The handle unit and the heat-insulating cover forming a water-tank housing space, of which the front and the both lateral sides are opened. The rear portion of the housing space where the handle unit is connected to the heat-insulating cover is narrowed as compared with the front-opening of the housing space. The housing space is so formed as to guide the water tank. By pushing the water tank along the housing space in a straight line, the water tank can be smoothly mounted.
摘要:
A steam iron comprising a thin iron main body is disclosed, the main body having a steam generating chamber. A box-like casing capable of housing the iron main body when the iron is not in use is provided. The casing is detachably mounted to the iron main body to constitute a handle when in use, and a water reservoir mounted in the front portion of the box-like casing feeds water to the steam generating chamber in the iron main body.