摘要:
The sheet material of the present invention has a protecting layer which comprises a heat reactant of a heat and active energy ray curable resin composition comprising as an active ingredient a polyfunctional isocyanate and a polymer having a (meth)acryl equivalent weight from 100 to 300 g/eq, a hydroxyl value from 20 to 500 and a weight-average molecular weight from 5000 to 50000. And, this protecting layer applied to the surface of a molded article is cured by active energy ray irradiation. Therefore, a molded article excellent in abrasion resistance and chemical resistance can be obtained, and cracking is not caused in the curved part of the molded article. Further, since the protecting layer is cured in part by heat in sheet material production, a large scale active energy ray irradiation apparatus is not required in active energy ray irradiation to realize low cost.
摘要:
A mechanism for attaching an ultrasonic head of an ultrasonic microscope to a vibration shaft of a vibrator is disclosed. A first connector half to which an R.F. cable is connected is fixedly arranged to the vibration shaft and a second connector half having the ultrasonic head coupled therewith is detachably attached to the first connector half, so that an exchange of the ultrasonic head can be performed in an easy and swift manner without affecting the position and characteristics of the R.F. cable.
摘要:
An image intensifier having a CsI phosphor input screen. The input screen comprises a substrate of aluminum, a plurality of small mosaic blocks secured on the substrate, a plurality of grooves intervening between adjacent blocks, a plurality of metallic protrusions formed on the grooves, a plurality of phosphor blocks grown on the mosaic blocks and optically isolated from each other by the protrusions and a photocathode deposited on the phosphor blocks. The metallic protrusions cause a phosphor layer when deposited on the mosaic blocks to divide without cracking into the plurality of phosphor blocks. The upper surface of the divided layer is even, permitting the photocathode film to be deposited thereon.