Abstract: An effluent treating method, comprising the steps of: vaporizing effluent containing chlorine-based organic matter and producing vaporized gas containing chlorine-based organic gas; reacting the vaporized gas with photocatalytic material, with irradiating ultraviolet light, and decomposing the vaporized gas; and absorbing, adsorbing, or neutralizing the reacting step.

Abstract: The photocatalyst granules of the present invention are photocatalyst granules prepared by molding a mixture containing photocatalyst particles and colloidal silica, and drying the molded mixture, wherein the content of the photocatalyst particles in the photocatalyst granules is 10% by weight or more.

Abstract: A ribbon-shaped material for FRTP molded objects 1 having a laminate 4 in which a ribbon-shaped reinforcing fiber tow 2 is placed between thermoplastic resin films for supplying matrix resin which are wider than the ribbon-shaped reinforcing fiber tow 2, and in which the thermoplastic resin films 3,3 are fused in side portions 5,5 of the laminate 4, which are along the longitudinal direction of the laminate 4; and a wide material for FRTP molded objects 30,40 obtained by arranging a plurality of the ribbon-shaped materials for FRTP molded objects 1 whereby adjacent ribbon-shaped materials for FRTP molded objects 1,1 overlap each other in a manner such that the side portion 5 of one of the adjacent ribbon-shaped materials for FRTP molded objects 1 is placed on the side portion 5 or the middle portion 6 of the other along the longitudinal direction, and fusing together each overlapping portion 31,41 of the ribbon-shaped materials for FRTP molded objects 1, whereby the reinforcing fiber tows 2 are arranged in pa

Abstract: A pre-impregnation has a ribbon-shaped tow of reinforcing fibers and a ribbon of thermoplastic resin laminated on the ribbon-shaped tow and fixed thereto at intervals, and the thermoplastic resin is allowed to uniformly impregnate into the ribbon-shaped tow under heat application so that a void does not take place in the ribbon-shaped tow.

Abstract: A prepreg for a sleeve member of fiber reinforced thermoplastic resin available for a tennis racket or a golf club is woven by using ribbon-shaped reinforcing fiber tows/uni-directional commingle yarns and matrix fiber tows, and the ribbon-shaped reinforcing fiber tows/commingle yarns make the prepreg and, accordingly, the sleeve product thin, light, highly dense, economical and large in mechanical strength.

Abstract: A pre-impregnation has a ribbon-shaped tow of reinforcing fibers and a ribbon of thermoplastic resin laminated on the ribbon-shaped tow and fixed thereto at intervals, and the thermoplastic resin is allowed to uniformly impregnate into the ribbon-shaped tow under heat application so that a void does not take place in the ribbon-shaped tow.

Abstract: A pre-impregnation has a ribbon-shaped tow of reinforcing fibers and a ribbon of thermoplastic resin laminated on the ribbon-shaped tow and fixed thereto at intervals, and the thermoplastic resin is allowed to uniformly impregnate into the ribbon-shaped tow under heat application so that a void does not take place in the ribbon-shaped tow.

Abstract: In construction of a racket frame provided with at least one string protector coupled to the outer peripheral surface of its head, at least one weight adjusting element is removably attached to the outer peripheral surface of the string protector for easy weight adjustment by users even after formation of a face in tension.

Abstract: The present invention provides a racket frame with a grip which includes an inner low rigidity layer embracing the rear end section of a shaft and an outer high rigidity layer embracing the inner low rigidity layer and partly in direct contact with the shaft, the direct contact being at the position of the node of the primary vibration transmitted through the shaft when striking a ball.

Abstract: A racket for tennis or like games utilizing one or more weight straps, preferably flexible, that are detachably fastened to the frame head by strings in tension for easy weight and balance adjustment by users in accordance with subtle difference in personal preference and to provide a safe weighting device which is unlikely to detach and cause accidental injury during use of the racket. The weight straps consist of a plurality of unit sections that are separated by spaced notches. The spaced notches permit a portion of the weight strap to be severed from the rest of the weight strap so as to allow variable weighting of the racket. The unit sections of the weight straps have holes located therethrough that are aligned with the string holes in a racket. Thus, the weight straps are held in place on the racket through the strings which pass over the weight straps.

Abstract: In a frame of a fiber reinforced plastic tennis racket made by molding process, thickness of the racket frame is reduced in an area starting from the throat to grip portion, and more preferably in the throat portion, to mitigate the bending stiffness of the frame at the portion thereby effectively hindering direct transmission of impact on the playing face to players' hands.