Ricoh Elemex Corporation

Mitsubishi Rayon Company, Limited

Hiroyuki Satou

Toshiyuki Imai

Masahide Hasegawa

Kazuhisa Tohyama

Keiji Nakagawa

Kentarou Hayashi

Kazuyoshi Odaka

Koji Furukawa

Disclosed is an active energy ray-curable coating composition containing (A) 10 to 70% by mass of a poly(meth)acrylate of a mono- or polypentaerythritol; (B) 5 to 50% by mass of (B-1) a polyester type aliphatic urethanedi(meth)acrylate compound which is obtained by reacting an aliphatic isocyanate compound, a caprolactone-modified polyester diol, and an acrylate having a hydroxyl group, (B-2) a compound represented by formula (2), or (B-3) a polyether type urethane di(meth)acrylate compound having two (meth)acryloyloxy groups in a molecule, wherein, in the case that component (B) is component (B-3), component (A) contains at least one caprolactone-modified (meth)acryloyloxy group; (C) 5 to 70% by mass of a poly[(meth)acryloyloxyalkyl](iso)cyanurate represented by formula (3) or (4); and (D) 0.1 to 10% by mass of a photopolymerization initiator. The active energy ray-curable coating composition can form a cured film excellent in weatherability, mar resistance, and adhesion to a base material. 

Active energy ray-curable coating composition and molded article having cured coating film of the composition

Provided is a watch capable of performing digital display as well as analog display. The watch can offer digital display without posing disadvantages peculiar to a liquid crystal panel. On the other hand, the watch can reduce the restrictions in design and make the digital display larger and easier to see. The watch includes a light-shielding plateon the rear side of the dial. In the light-shielding plate, light-transmitting holesare made piercing from a front of the light-shielding plate to a rear thereof. Thin chip LEDsare inserted in the light-transmitting holes, and mounted on a circuit board. The circuit board is placed on the rear side of the light-shielding plate. On the rear side of the circuit board, an analog movementis provided, and an LED drive circuitfor driving the LEDs is placed. Thus, the LEDsfor digital display are placed on the rear side of the dial. The dial is formed so as to have an optical transmittance such that the digital display with the LEDs can be visually identified through the dial only when the LEDs are ON.

Analog watch

Watch

Growing community of inventors

Aichi, Japan

Hiroyuki Satou