Abstract: A pre-coated aluminum sheet (10), which is used in a heat sink (1), is characterized in that: an aluminum sheet (20) exhibits a thermal conductivity of equal to or greater than 150 W/m·K; a resin-based film (3) includes a thermosetting resin; the thickness of the resin-based film (3) is 15-200 ?m; the integrated emissivity of the resin-based film (3) in the infrared region having the wavelength of 3-30 ?m is equal to or greater than 0.80 at 25° C.; and, when the minimum temperature that the resin-based film (3) reaches while the heat sink (1) is used is expressed as T1° C., the glass transition temperature of the resin-based film (3) is equal to or below T1+20° C.

Abstract: A pre-coated aluminum sheet, an aluminum sheet, and a heat sink for onboard LED lighting excellent in the heat radiation property are provided. The pre-coated aluminum sheet is used for the heat sink for onboard LED lighting, and is the pre-coated aluminum sheet including an aluminum sheet and a resin-based film. The thermal conductivity of the aluminum sheet is equal to or greater than 150 W/m·K, the resin-based film includes a thermosetting resin and a black pigment composition, and the integrated emissivity of the resin-based film in the infrared region having the wavelength of 3-30 ?m is equal to or greater than 0.80 at 25° C.

Abstract: A process is disclosed for continuously producing erythritol by cultivating erythritol-producing microorganisms under aerobic conditions. The process comprises the steps of: maintaining the concentration of dissolved oxygen in a culture broth in a fermentation tank at not less than 0.2 ppm; separating a part of the culture broth into a concentrated liquid in which the concentration of cells is increased and a clarified liquid by a cell separator; returning the concentrated liquid to the fermentation tank; controlling an amount of the clarified liquid to be extracted outside an erythritol-producing system and an amount of the culture broth and/or the concentrated liquid to be extracted outside the producing system such that the concentration of the cells in the culture broth in the fermentation tank may be kept in a range from 40 to 200 g/l when calculated as a weight of dried cells; and recovering erythritol from the clarified liquid.