Abstract: An image processing circuit includes: a memory that stores the location and pixel values that compose graphical images; a calculation unit that calculates the difference between a target location to which the graphical images is aligned in binary image data and an initial location designated in the graphical images; an output unit that outputs pixel values at locations distanced from the locations of the pixel values by an amount equivalent to the calculated difference; a first multiplier that multiplies the output pixel value with the pixel value included in the binary image data; an inverter that inverts the pixel value in the binary image data; a second multiplier that multiplies the pixel values in the binary image data or the pixel values included in background image data with the inverted pixel values; and an adder that adds the result of the multiplications performed by the first and second multipliers.

Abstract: A negative carrier assembly used with a photographic printer. It provides for quick change of the film feed direction according to the film size and other factors. When changing the negative film feed direction, the mask support plate is removed from the negative mask base, turned by 90 degrees, and re-mounted on the negative mask base. This changes the direction of a film guide groove formed in the negative mask supported on the negative mask base. The negative film is pressed by the negative presser frame mounted on the negative presser arm pivoted together with the holder arm.

Abstract: In producing a crosslinked polypropylene foam, 0.5 to 4 parts by weight of a compound selected from triacrylate and trimethacrylate of aliphatic polyhydric alcohol and a blowing agent are mixed with 100 parts by weight of propylene homopolymer or copolymer. Then, the mixture is shaped under heat, followed by irradiation with an ionizing radiation such that the dose of the radiation absorbed by the shaped mass ranges between 0.1 and 10 Mrad. Finally, the irradiated mass is heated for foaming.

Abstract: A composition for a crosslinked polyolefin foam is prepared from 20 to 75% by weight of a crystalline propylene copolymer containing 1 to 15% by weight of ethylene and having a crystallinity higher than 50% and 80 to 25% by weight of polyethylene.

Abstract: In producing a crosslinked polypropylene foam, 0.5 to 4 parts by weight of a compound selected from triacrylate and trimethacrylate of aliphatic polyhydric alcohol and a blowing agent are mixed with 100 parts by weight of propylene homopolymer or copolymer. Then, the mixture is shaped under heat, followed by irradiation with an ionizing radiation such that the dose of the radiation absorbed by the shaped mass ranges between 0.1 and 10 Mrad. Finally, the irradiated mass is heated for foaming.

Abstract: A method of crosslinking poly-.alpha.-olefin series resins, comprising the steps of subjecting a resin composition to graft reaction under a volume ratio of oxygen to the resin composition set at less than 0.1 and at temperatures ranging between the thermal decomposition temperature of the radical generating agent and 230.degree. C., said composition comprising at least one kind of poly-.alpha.-olefin series resin of polypropylene series resin, poly(butene-1) series resin or poly(4-methyl pentene-1) series resin; a radical generating agent of dibenzoyl peroxide or t-butyl perbenzoate; and a silane compound having the general formula of RR'SiY.sub.