Abstract: The invention provides a photocurable liquid rubber composition containing a liquid styrene-butadiene copolymer having, at each end of a molecular chain thereof, a functional group having a photocurable unsaturated hydrocarbon group, a (meth)acryloyl group-containing monomer, and a photopolymerization initiator. The composition can be used without solvent, which realizes easy control of the viscosity thereof, and which exhibits high break strength after curing.

Abstract: A crosslinked rubber product which is molded into a desired shape with crosslinking from a rubber compound composed of liquid rubber and compounding ingredients, wherein the crosslinked rubber product is characterized by having a value of permanent compression set (S) of 0.2 to 25% (measured according to JIS K6262) and a value of Asker C hardness (H) of 10 to 83 (measured according to JIS K6253), with S and H satisfying the next following (1). S?28.8?0.34H??(1) The crosslinked rubber product has high performance (small permanent compression set as well as low hardness) which has never been achieved by ones in the past.

Abstract: An ethylene propylene rubber foam which comprises as the crude rubber, an ethylene propylene rubber having an iodine value of 35 to 45 and a Mooney viscosity ML1+4 at 100° C. of 20 to 50, and which has less compression set and is suitable as a material for a transfer member, a primary transfer member, a secondary transfer member, a cleaning member for image formation bodies, a bias member, a backup member, etc.; an electroconductive ethylene propylene rubber foam which comprises as the crude rubber, an ethylene propylene rubber having an iodine value of 35 to 45 and a Mooney viscosity ML1+4 at 100° C.

Abstract: An ethylene propylene rubber foam which comprises as the crude rubber, an ethylene propylene rubber having an iodine value of 35 to 45 and a Mooney viscosity ML1+4 at 100° C. of 20 to 50, and which has less compression set and is suitable as a material for a transfer member, a primary transfer member, a secondary transfer member, a cleaning member for image formation bodies, a bias member, a backup member, etc.; an electroconductive ethylene propylene rubber foam which comprises as the crude rubber, an ethylene propylene rubber having an iodine value of 35 to 45 and a Mooney viscosity ML1+4 at 100° C.

Abstract: An ethylene propylene rubber foam which comprises as the crude rubber, an ethylene propylene rubber having an iodine value of 35 to 45 and a Mooney viscosity ML1+4 at 100° C. of 20 to 50, and which has less compression set and is suitable as a material for a transfer member, a primary transfer member, a secondary transfer member, a cleaning member for image formation bodies, a bias member, a backup member, etc.; an electroconductive ethylene propylene rubber foam which comprises as the crude rubber, an ethylene propylene rubber having an iodine value of 35 to 45 and a Mooney viscosity ML1+4 at 100° C.

Abstract: A new intermediate transfer member which has a durable coating layer which easily conforms to the elastic deformation of the rubber layer, exhibits good wear resistance, permits easy resistance control, and fulfills such requirements as protection of the photosensitive body from staining, prevention of toner sticking, and decrease in the coefficient of friction. It is characterized in that the coating layer is composed mainly of a urethane resin which is formed from a polyol compound and a polyisocyanate compound in an excess amount in terms of NCO/OH molar ratio and which contains a solvent-insoluble fraction no less than 70%.

Abstract: Disclosed is an intermediate transfer member disposed between an image forming body and a recording medium, for transferring and holding a toner image formed on a surface of the image forming body onto a surface of the intermediate transfer member once and then transferring the toner image onto the recording medium, the intermediate transfer member including: a rubber composition, wherein the state of occurrence of cracks in the rubber composition after the rubber composition imparted with 20% of elongation has been exposed for 120 hours to an environment with an ozone concentration of 10 ppm and with a temperature of 40.degree. C. is specified such that no crack is seen, or the number of cracks and the depth of cracks satisfy a specific evaluation standard.

Abstract: In an analog-to-digital converter, a plurality of divided output currents are produced by dividing at a predetermined ratio each of a plurality of comparison output currents that are produced for each reference potential, and an output voltage generated by each divided comparison output current is further divided by an output means into a plurality of output voltages. A combination of output voltages which are in reversed-phase, and the relationship of which in magnitude is reversed at an intermediate potential between first and second reference potentials, is selected from the plurality of output voltages produced by the above division. According to this construction, comparison outputs of an input analog signal with respect to arbitrary virtual potentials between the two reference potentials actually given can easily be obtained.

Abstract: In an analog-to-digital converter, a plurality of divided output currents are produced by dividing at a predetermined ratio each of a plurality of comparison output currents that are produced for each reference potential, and an output voltage generated by each divided comparison output current is further divided by an output means into a plurality of output voltages. A combination of output voltages which are in reversed-phase, and the relationship of which in magnitude is reversed at an intermediate potential between first and second reference potentials, is selected from the plurality of output voltages produced by the above division. According to this construction, comparison outputs of an input analog signal with respect to arbitrary virtual potentials between the two reference potentials actually given can easily be obtained.

Abstract: A catalyst comprising (a) copper or a copper compound; (b) vanadium or a vanadium compound; (c) zirconium, aluminum, nickel, iron, manganese, lanthanum, chromium, zinc, lead, or cerium, or a compound thereof; and optionally, (d) platinum, rhodium, or palladium, or a compound thereof is carried on a porous ceramic body to assist in purifying exhaust gases from Diesel engines.