摘要:
A cement reinforcing fiber obtained by impregnating an organic or inorganic fiber with a thermosetting resin, then coating it with a rubber solution or rubber latex, and curing it.
摘要:
Cement is reinforced by mixing into a water-curable cement a reinforcing quantity of a fiber prepared by impregnating a carbon fiber with from 50-200 wt. % of a thermosetting resin, coating the impregnated resin with from 10-200 wt. % of a rubber solution or rubber latex, and then curing the coated fiber.
摘要:
Carbon black having silica attached to the surface, characterized in that the attached silica has a size of from 0.1 to 20 nm in thickness and from 1 to 40 nm in width.
摘要:
An image forming apparatus includes an image carrier, a rotary developer unit having a developing roll opposed to the image carrier when located at a developing position and an exposure device for writing a latent image onto the image carrier, wherein an optical path from the exposure device to the image carrier passes within a circumscribed circle of the developing roll with the center of rotation of the rotary developer unit as the center of the circle. The image carrier is located so as to provide the developing position above a horizontal line passing the center of rotation of the rotary developer unit, and the exposure device is located so as to provide a beam exit position below the horizontal line.
摘要:
An image forming apparatus includes an image carrier, a rotary developer unit having a developing roll opposed to the image carrier when located at a developing position and an exposure device for writing a latent image onto the image carrier, wherein an optical path from the exposure device to the image carrier passes within a circumscribed circle of the developing roll with the center of rotation of the rotary developer unit as the center of the circle. The image carrier is located so as to provide the developing position above a horizontal line passing the center of rotation of the rotary developer unit, and the exposure device is located so as to provide a beam exit position below the horizontal line.