Riken Technos Corporation

Shoko Nakajima

Hitomi Inomata

Nozomu Washio

Taketo Hashimoto

Embodiments provide a door body for opening and closing a front part of an article body, whereby the door body includes a front panel constituting a front of the door body, a frame supporting at least a part of an outside edge of the front panel, and a back panel constituting a back of the door body. According to at least one embodiment, the frame includes a support plate extending to an inside of the article body in a substantially vertical direction, the front panel is bonded to the support plate with a double-sided pressure-sensitive adhesive film, the double-sided pressure-sensitive adhesive film extends from a leading edge of the support plate to an inside of the door body, and a radius of curvature of a front side corner of the leading edge of the support plate is 0.1 to 10 mm.

Door body

According to at least one embodiment, there is provided a pressure-sensitive adhesive which includes 100 parts by mass of (A) an acrylic polymer having a glass transition temperature of &#x2212;50 to &#x2212;25&#xb0; C., 0.01-3 parts by mass of (B) a silane coupling agent having an epoxy group, 0.01-0.9 parts by mass of (C) a compound having two or more epoxy groups in the molecule, and 0.01-0.5 parts by mass of (D) an organic polyvalent-metal compound. Another embodiment is a decorative sheet which includes a layer including the pressure-sensitive adhesive. Other embodiments include the front panel of a door for opening/closing a front part of an article main body, which includes a layer including the pressure-sensitive adhesive.

Pressure-sensitive adhesive and articles including same

Embodiments provide a door body which opens and closes a front part of an article body, and which has a front panel that constitutes the front of the door body, a frame that supports at least a part of the outside edge of the front panel, and a back panel that constitutes the back of the door body. According to at least one embodiment, the front panel includes a hard coat laminated sheet; the hard coat laminated sheet has a first hard coat, a second hard coat, and a transparent resin sheet layer in that order from the surface on the front side. The first hard coat is formed from a coating material which contains (A) 100 parts by mass of a polyfunctional(meth)acrylate, (B) 0.01-7 parts by mass of a water repellant and (C) 0.01-10 parts by mass of a silane coupling agent and which does not contain inorganic particles, and the second hard coat is formed from a coating material which contains (A) 100 parts by mass of the polyfunctional (meth)acrylate and (D) 50-300 parts by mass of inorganic fine particles having an average particle diameter of 1-300 nm. This door body may have a display on at least a part of the front thereof.

Growing community of inventors

Tokyo, Japan

Shoko Nakajima