Abstract: Disclosed is a process for hydroconverting a heavy hydrocarbon oil in a reactor under high-temperature and high-pressure conditions,wherein said hydroconversion is carried out through using at least three desulfurization catalysts which each contains as active metals transition metals of Group VI and VIII in the Periodic Table supported on an alumina carrier and which have different SI of 40 or higher, 30 or higher and below 40, and lower than 30, respectively,and wherein said at least three catalysts are packed into the reactor in a descending order of SI from the inlet to the outlet of the reactor, with the proportion of the catalyst having SI of 40 or higher is at least 10% by volume, that of the catalyst having SI of 30 or higher and below 40 is at least 20% by volume, and that of the catalyst having SI of lower than 30 is at least 30% by volume.

Abstract: A color toner providing a toner image excellent in brightness, clearness and graininess and a process for producing the same are disclosed, wherein a proportion of dispersed pigment particles having a circle-equivalent diameter of 0.3 .mu.m or greater does not exceed 0.1% of the total number of said dispersed pigment particles. The process comprises kneading a water-containing pigment paste and a binder resin at a temperature of 100.degree. C. or higher under pressure in a heat and pressure kneader to remove a water content to obtain a pigment dispersion, melt-kneading the resulting pigment dispersion together with a binder resin, and grinding the mixture.

Abstract: A process for producing a heat-sensitive stencil sheet (7) is disclosed, which makes it possible to readily form a porous substrate layer having a uniform and dense fiber dispersion on a thermoplastic resin film (3). The process is characterized by electrostatically flocking staple fibers (5) of 0.1-3 denier on a thermoplastic resin film (3) coated with a binder and by thermally compressing them (14) to form a porous substrate layer on the film. Since the porous substrate layer, having a good fiber dispersion, can be formed directly on the film by the electrostatic flocking process, it is possible to make the production process shorter, reduce the production cost and to improve the visual quality of the printed matter.

Abstract: An ink transfer medium for toner is disclosed, comprising the following layers, in this order: a heat-generating resistive layer heated by input of electrical signal, a conductive layer, and an ink release layer having a toner layer on it, an adhesion from 0.2 g/mm to 40 g/mm as measured by the 90.degree. peeling off method and consisting of a viscoelastomer having a critical surface tension of 35 dyne/cm or less. It can be re-inked by attaching toner to the portions of the ink transfer medium from which the ink has been removed, using toner held in a toner holding means.

Abstract: A method for forming an image with a copying machine capable of both color copying and black-and-white copying is disclosed, in which a black toner contains at least a colorant and a resinous component having a weight average molecular weight (Mw) of from 25,000 to 80,000 and a number average molecular weight (Mn) of from 2,000 to 8,000, with a Mw/Mn ratio being not less than 10, and having an apparent melt viscosity of 1.times.10.sup.4 poise at a temperature between 115.degree. C. and 140.degree. C. as measured by a flow tester method, and the quantity of heat of fixing is varied between a B/W mode and a color mode.

Abstract: Provided are N-(9-fluorenylmethoxycarbonyl)-4-substituted proline derivatives represented by the following formula (I): ##STR1## wherein Q is O or S, R represents a particular monovalent group, and T represents H or --C(CH.sub.3).sub.3. Where T is H, the derivatives can each be prepared by reacting a corresponding electron attractive compound with N-(9-fluorenylmethoxycarbonyl)-4-hydroxyproline in the presence of a coupling reagent. The derivatives in which T stands for --(CH.sub.3).sub.3 can each be prepared by reacting the corresponding N-(9-fluorenylmethoxy-carbonyl)-4-hydroxyproline derivative with isobutylene in the presence of a catalytic amount of sulfuric acid. The staring material, N-(9-fluorenylmethoxycarbonyl)-4-hydroxyproline, can be purified by adsorbing it on anhydrous magnesium sulfate.

Abstract: To provide a chip resistor with small variation of ESD required when in automobile use, a chip resistor containing(1) insulating substrate,(2) a pair of terminations disposed over said substrate,(3) resistor layer of thick film resistor composition comprising a mixture of finely divided of conductive component and glass binder,wherein said resistor layer being disposed and patterned on the surface of said substrate by printing and firing to form continuous conductive path comprising divided sections connecting to each of said termination, and divided section angled in its longitudinal direction from the direction of current flow in said respective 4 sections connected to said terminations being insulated and separated from one another by underlaying substrata resulting into considerably longer resistor geometry than distance between said terminations.

Abstract: A mimeographic transfer printing machine includes a stencil support drum for supporting a stencil, an ink supply device for forcing ink through the stencil supported on the stencil support drum, an ink receiving transfer drum to which the ink forced out from the stencil is to be transferred, and a sheet support device for supporting a printing sheet to which the ink on the ink receiving transfer drum is to be transferred. The stencil support drum has a slightly larger diameter than the transfer drum so that the circumferential speed of the stencil support drum is greater than that of the transfer drum to provide to the stencil a tension acting in a direction opposite to the rotation of the stencil support drum.

Abstract: An electrophotographic toner composition comprising (A) toner particles with an average particle diameter of 9 .mu.m or less comprising at least a binder resin and a colorant, and (B) an additive, wherein the additive is a fine metal oxide powder surface coated with at least one agent for imparting hydrophobic property selected from the group consisting of the following formulae (1), (2) and (3):R.sub.1 Si(X).sub.3R.sub.1 R.sub.2 Si(X).sub.2R.sub.1 R.sub.2 R.sub.3 Si(X).sub.1wherein R.sub.1 represents a substituted or unsubstituted alkyl group having a molecular weight of 113 or more, R.sub.2 and R.sub.3 each represents hydrogen, an alkyl group or an allyl group, and X represents chlorine, an alkoxy group or an acetoxy group. The toner composition causes no impaction to a carrier and no adhesion of the toner particles to a photoreceptor, and can form stable, sufficient images for a long time.

Abstract: A novel black toner for color digital copying machine is provided, which comprises a binder resin having dispersed therein toner particles comprising carbon black having an average primary particle diameter of 35 m.mu.m to less than 50 m.mu.m as a colorant in an amount of 2 to 6 parts. In a preferred embodiment, the average primary particle diameter and content of carbon black are determined such that there exist the following relationships (1) and (2) between the image density (ID) of an image developed with toner particles and the developed amount of toner (TMA) and the image density (ID) is in the range represented by the following relationship (3):ID.ltoreq.8/3(TMA)+4/5 (1)ID.gtoreq.5/3(TMA)+1/2 (2)1.2.ltoreq.ID.ltoreq.1.7 (3)wherein TMA represents the amount of toner in mg supplied per unit cm.sup.2 of photoreceptor when an electrostatic latent image corresponding to a solid image is developed; and ID represents a value determined by means of a Macbeth densitometer.

Abstract: A method and apparatus for continuously making snow at all times of the year comprises the creation of countless ice crystals from a mist in a controlled environment. The mist may have a ice crystal nucleus added to it to facilitate the development of the ice crystal at higher temperatures. The ice crystals are directed into an ultrasonic field generated by an transducer where the fall rate of the crystals levitated. While the crystals are within the ultrasonic field, the crystals grow into snowflakes as a result of collisions with other crystals. The snowflakes eventually fall out of the ultrasonic field as snow having a more natural appearance than more conventional snow-making techniques.

Abstract: A toner for developing an electrostatic charge image is disclosed, which is formed by adding and mixing an external additive with toner particles having an average particle size of not larger than 9 .mu.m and comprising at least a colorant and a binder resin, wherein the external additive is fine particles having a particle size of 20 to 80 nm. There is also disclosed a process for preparing the toner which comprises adding external additives to the toner particles and mixing them, wherein the addition and mixing of said external additive are carried out under specific conditions.

Abstract: An electrically conductive thick film resin composition comprising finely divided particles of (1) a conductive metal dispersed in a liquid organic medium comprising (2) acrylic polymer primary binder and (3) network resin auxiliary binder having a thermal degradation temperature of at least 300 C. dissolved in (4) volatile organic solvent.

Abstract: A method for fixing a full color toner image by inserting a transfer medium to which a toner image is transferred, between a pair of rolls of a fixing apparatus, and pressing the medium therebetween, wherein the toner image is formed of a full color toner prepared by dispersing a colorant into a polyester resin containing a diol component represented by the following general formula (I) as a constituent and having a softening point of 100.degree. to 120.degree. C., as measured by a ring and ball method, a glass transition temperature of 55.degree. C. or more, a Gardner color scale of 2 or less and a haze value of 15 or less, and the fixing operation is conducted while supplying a functional group-containing organopolysiloxane having a viscosity of 10 to 100,000 cs at 25.degree. C.

Abstract: A method for fabricating transformers each having a core made from a lamination body of strips made of an amorphous magnetic alloy comprises the steps of forming a ring-like lamination body using a grindstone cutter and a gas coolant to obtain a developed lamination body, shaping the developed lamination into a substantially rectangular core, assembling windings with the core using a sliding tool for inserting leg portions of the core into windows of windings, covering the core with a core cover and mounting a grounding member so as to ground the core to the ground.

Abstract: A catalyst composition for the hydrotreatment of hydrocarbon oils is disclosed. The composition comprises at least one metal compound having hydrogenating activity belonging to a Group VIB or Group VIII carried on a carrier comprising 2-35% by weight of zeolite and 98-65% by weight of alumina or an alumina-containing substance, wherein, (A) said alumina or alumina-containing substance (1) has a mean pore diameter of 60-125 angstrom and (2) contains the pore volume of which the diameter falls within .+-.10 angstrom of the mean pore diameter of 70-98% of the total pore volume, (B) said zeolite (3) has a mean particle size of 6 .mu.m or smaller and (4) contains particles of which the diameter is 6 .mu.m or smaller of 70-98% of all zeolite particles. It has both high hydrodesulfurization and high cracking capabilities at the same time, and can selectively crack the heavy fractions which have once been hydrotreated, yielding lighter fractions.

Abstract: 3,4-Dihydroxyphenylalanine wherein the amino group is protected with a 9-fluorenylmethyloxycarbonyl group, or a derivative thereof can be produced by reacting 3,4-dihydroxyphenylalanine with a boron compound or phosphorus compound to stabilize the hydroxyl groups, followed by introduction of a 9-fluorenylmethyloxycarbonyl group thereinto.

Abstract: A brush for drying hair has a body with a hollow interior. The body has opposed surfaces with the surface on one side having teeth arranged in a more open or less dense pattern than the teeth on the opposite surface. The teeth on each face pass through a non-woven fabric sheet of water absorbant material with inner ends of the teeth seated in recesses in the inner body of the head of the brush. The non-woven fabric on one surface of the brush is isolated from the non-woven fabric on the other face so that its water absorbing function is isolated from the fabric on the other surface.

Abstract: A stationary induction electric apparatus and a method for manufacturing the apparatus is disclosed. The apparatus comprises a reinforcement frame to be mounted on an inner peripheral surface of a rectangular core, a protective cover for covering both of the rectangular core and the reinforcement frame, a reinforcement band to be wound on an outer peripheral surface of the rectangular core on which the protective cover is mounted, and windings to be fitted on the leg portion of the rectangular core on which the reinforcement frame, the protective cover, and the reinforcement band are mounted.

Abstract: Process for producing a fiber reinforced plastics linear material like a tension member for optical communication cables. A groove capable of accomodating an optical fiber is formed in the outer surface of the tension member. In accordance with the conventional method, the groove is necessarily formed in parallel along the axial direction of the tension member and, therefore, if the tension member is bent in the state that the optical fiber is placed in the groove, a force due to bending is applied directly to the optical fiber and the transmission loss of the optical fiber is increased.