摘要:
A thermally conductive formed article according to the present invention includes a matrix, and short carbon fibers which are present in the matrix. The short carbon fibers are oriented in a fixed direction in the matrix. A ratio I (002) /I (110) between an intensity I (110) of a diffraction peak ascribable to a (110) surface of carbon and an intensity I (002) of a diffraction peak ascribable to a (002) surface of carbon, occurring when X-rays are irradiated onto the thermally conductive formed article along the direction of orientation of the short carbon fibers, is 10 or less.
摘要:
A key sheet (11,21,31,41,51) includes a base sheet (12,22,32,42,52) and a plurality of key tops (3) arranged on the base sheet (12,22,32,42,52). The base sheet (12,22,32,42,52) includes an elastic member formed of a rubber-like elastic body and a light-reflective reinforcing member (10,20,30,40,50). The light-reflective reinforcing member (10,20,30,40,50) having at least one surface constitutes the metal-containing face.
摘要:
An illuminated pushbutton swich cover member (11) has a key seat (13) and a resin key top (12). An indicator portion (17) provided in the resin key top (12) is illuminated with light from an internal light source (14b) provided below the key seat (13), and the light is emitted from the inside to the outside of the cover member (11) through the indicator portion (17). The cover member (11) is constructed by joining the resin key top (12) to the key seat (13). The key seat (13) is formed of a thermoplastic elastomer that prevents leakage of light, and an opening (13f) for passage of light is formed in the key seat (13) to expose the bottom side of the resin key top (12) to the internal light source (14b). Thus, light from the internal light source (14b) can reach the bottom side of the resin key top (12) directly without being attenuated. The indicator portion (17) of the resin key top (12) can therefore be illuminated with high luminance.
摘要:
The present invention provides a thermally conductive holder (11) formed from a thermally conductive composition for holding a heat-generating component (12, 26). The thermally conductive composition comprises a silicone rubber; and a thermally conductive filler in a range from 40 to 70 percent by volume with respect to total volume of the silicone rubber and the thermally conductive filler. From 35 to 100 percent by volume of the thermally conductive filler is composed of magnesium oxide of 5 µm or less in average particle size. The thermally conductive holder (11) has a hardness in a range from 20 to 70 as measured by Type A durometer in conformity with ISO 7619.
摘要:
A film integrated key top made by linking a plurality of key tops (1) with a resin film (2), wherein the resin film linking key tops (1) is formed bent more downward than the lower end (7) of a pasted section with the key top body (4), the miniaturized film integrated key top allowing the key top interval to be reduced, preventing adjacent key tops from working together, and presenting a fine appearance.
摘要:
A thermally-conductive epoxy resin molded article (11) comprises an epoxy resin having molecular chains that contain an azomethine group (-CH=N-). The molded article (11) has a thermal conductivity in a range of 0.5 to 30 W/(m·K). It is preferred that the molecular chains of the epoxy resin are oriented in a specific direction, and in that direction, the molded article (11) has a thermal conductivity in a range of 0.5 to 30 W/(m·K). The thermally-conductive epoxy resin molded article (11) is produced by applying a magnetic field to the epoxy resin composition (15) to orient the molecular chains of the epoxy resin in a specific direction and then curing the epoxy resin composition (15).
摘要:
Provided is a decorative molded object (1,21,31,41,51,61) such as a key top for a push-button switch excellent in transparency of a color design image, and a method of producing such a decorative molded object (1,21,31,41,51,61). By a method of producing a decorative molded object (1,21,31,41,51,61) which is a resin molded object (2) decorated with a color design image representing a letter, a symbol, a figure, or the like, including the steps of: printing a color design image on an image carrying layer (8), which is porous and is arranged on a substrate sheet (9), with an output apparatus that collectively outputs color design data to form a coloring agent layer (10) for displaying the color design image on the substrate sheet (9); transferring the coloring agent layer (10) on the substrate sheet (9) onto a resin molded object (2) to be decorated; peeling the substrate sheet (9) with the transferred coloring agent layer (10) left on the resin molded object (2) to form a color design image layer (3) on the resin molded object (2); and curing, after application and deposition onto the color design image layer (3), a transparent resin liquid to thereby form a transparent resin layer (5), a decorative molded object (1,21,31,41,51,61) which is a resin molded object (2) is decorated with a color design image representing a letter, a symbol, a figure, or the like can be obtained.
摘要:
A thermally conductive molded article is produced by molding a conductive composition into a predetermined shape. The composition includes a polymer matrix and carbon powders. The carbon powders are obtained by graphitizing a polymeric material that has an aromatic ring on its main chain by heating. The carbon powders are aligned in a certain direction in the polymer matrix. Thus, the molded article can be produced easily and effectively that has excellent thermal conductivity in a given direction and that is suitable for use as a heat radiator, heat transfer member, or a component thereof in electronic hardware.