Abstract: A sintered product based on mesocarbon microbeads is prepared by pressure-molding mesocarbon microbeads (MCMB) having an MSP (maximum solubility percent) value of 30 to 38% by volume whereby a body is formed, and sintering the body, wherein MSP represents the percentage volume reduction (volume %) determined by heating a given amount of an MCMB to 350.degree. C. under a pressure load of 10 kgf/cm.sup.2. The quality of a molded MCMB sintered product can be controlled by determining the percentage volume reduction (MSP) of an MCMB by heating it under a given pressure load in a predetermined space using the MSP value so found as an indicator.

Abstract: A leadframe includes a first longitudinal side band, a second longitudinal side band integrally connected to the first band by transverse sectioning bars spaced longitudinally of the leadframe, a plurality of first leads located closer to the first side band between the respective sectioning bars, and a plurality of second leads integrally connected to the second side band between the respective sectioning bars. The first leads are integrally connected to the respective sectioning bars only via twistably slenderized segments. Each first lead can be turned over toward a corresponding second lead by torsioning the twistable segments.

Abstract: Compounds of formula (I): ##STR1## (wherein: R.sup.1 represents a hydrogen atom or a halogen atom;R.sup.2 represents a C.sub.1 -C.sub.6 alkyl group; andA represents an oxygen atom, a sulphur atom, a sulphinyl group or a sulphonyl group)have good insecticidal activity coupled with a low toxicity to warm-blooded animals. Compounds in which A represents an oxygen or sulphur atom can be prepared by reacting a corresponding alkali metal alkoxide or mercaptide with the corresponding 3-dimethylcarbamoyloxy-5-halomethylisoxazole derivative, while compounds where A represents a sulphinyl or sulphonyl group may be prepared by oxidizing the corresponding compound wherein A represents a sulphur atom. The compounds may be formulated with conventional insecticidal carriers or diluents and exhibit a synergistic increase in activity when combined with various known organic phosphate and carbamate insecticides.

Abstract: Described is a catalyst used for hydrogen treatment of coal tar characterized in that about 10 to 30 weight percent of Mo oxides as first catalyst component and about 1 to 6 weight percent of Ni and/or Co as second catalyst component, both relates to the total catalyst weight, are supported on a porous inorganic substrate consisting essentially of alumina or silica alumina, and in that the mean pore size is about 8 to 18 nm, the pore size distribution is such that______________________________________ pore size nm volume ratio cc/g ______________________________________ 3.5-5 Less than 0.1 5-8 Less than 0.3 8-18 0.2-0.2 18-30 Less than 0.2 over 30 Less than 0.1 ______________________________________and the total pore surface is higher than about 100 m.sup.2 /g.

Abstract: Described is the method of producing the super needle coke from graphite electrodes, wherein the starting material derived from coal tar or the starting material derived from coal tar and containing less than 0.1 weight percent of the dry sludges or quinoline insolubles is subjected to hydrogenation in the present of hydrogenation catalyst to give the hydrogenated oil which is further subjected to thermal cracking under the controlled condition and non-volatile components contained in thermally cracked oil are removed to give the starting coking material from the distillate these of which is subjected to delayed coking.The thermal cracking conditions are selected from the conditions in which the pressure range is up to 3.9 MPa (40 kg/cm.sup.2 G.). The temperature is 470.degree. to 520.degree. C. and the cold residence time is to to 350 seconds, while the coking conditions are selected from the conditions in which the temperature ranged is over 450.degree. to 465.degree. C. and the pressure range is over 0.

Abstract: 3-hydroxy-5-methylisoxazole is prepared by reacting diketene in a continuous process with hydroxylamine to give a reaction mixture containing acetoacetohydroxamic acid and then acidifying this reaction mixture as quickly as possible to produce the 3-hydroxy-5-methylisoxazole.

Abstract: A process for fluidized catalytic cracking of heavy oils and production of hydrogen is described, comprising contacting steam and heavy oils with fluidized catalyst particles containing reduced iron at high temperatures, wherein a fluidized bed is formed such that the catalyst particles are fed from the bottom and withdrawn from the top of the fluidized bed and the fluidized bed is provided with a means for retarding the mixing rate of the catalyst particles in the vertical direction, to thereby generate a temperature difference between zones of the fluidized bed above and below said means, and use the upper zone for cracking of heavy oils and the lower zone for production of hydrogen. Catalyst particles withdrawn from the fluidized bed may be regenerated and recycled. Thus, light oils and hydrogen can be produced in high yields.

Abstract: Compounds of formula (I): ##STR1## (wherein R.sup.1 represents a hydrogen or halogen atom R.sup.2 represents an alkyl, alkenyl, alkynyl, optionally substituted aralkyl or optionally substituted aryl group and A represents a sulphur atom or a sulphinyl or sulphonyl group) have insecticidal and acaricidal activity and, when formulated in suitable compositions for agricultural or horticultural use, can be used to protect plants from attack by insects or acarids.

Abstract: An improved magnetic actuator mechanism suitable for dot printing mechanisms for use in a wire matrix dot printer. The present magnetic actuator mechanism comprises an armature movable between a reset position and an actuated position, a permanent magnet for attracting the armature toward the reset position, and an electromagnet which, when energized, generates in the armature a magnetic flux opposite to and larger than the magnetic flux generated therein by the permanent magnet. The armature is thus moved to the actuated position by the turn of the magnetization direction in the armature when the electromagnet is energized.

Abstract: The present invention relates to a bow type continuous casting process using a curved mold, wherein molten steel is continuously cast into the curved mold to obtain a curved strand, e.g. a slab, having a thickness of not less than 200 mm.The improvement of this invention resides in that the curved strand is straightened at a plurality of points at regions of the strand where the thickness of the solidified shell is not more than 60 mm. The obtained strand can be directly supplied to rolling without the necessity of removing the defects from the strand or without reheating the strand.

Abstract: A process for simultaneously cracking a heavy hydrocarbons to form light oil and producing hydrogen is described, which comprises (1) a first step wherein steam and heavy hydrocarbons are simultaneously contacted with a catalyst in a reduced state, containing iron in the form of iron oxide, to produce hydrogen, cracked gases and cracked light oils, to convert the reduced-state catalyst into an oxidized-state catalyst, and to deposit coke on the catalyst, (2) a second step wherein the oxidized-state catalyst with coke deposited thereon is contacted with an oxygen-containing gas to partially combust the coke on the catalyst, to convert the oxidized-state catalyst into a reduced-state catalyst, and to fix a sulfur compound contained in the coke as iron sulfide with a part of the reduced-state catalyst; and (3) a third step wherein catalyst obtained from the second step, the major portion of the catalyst being recycled between the first step and second step, is contacted with an oxygen-containing gas at a tempera

Abstract: In a slab heating furnace of walking beam- or pusher-type, particularly for the heating of steel prior to the hot working of the steel, skid beams are supported by water-cooled posts. In order to reduce the number of the water-cooled posts from that in the prior art, a post head having a trough shaped portion is stationarily located on each of the posts. The length of the post head is longer than the outer diameter of the post provided with said post head. The total withdrawal of heat from heated steel to all of the post heads is considerably small, because the number of posts is reduced from that of the prior art due to the structure of the post heads. The posts are preferably arranged in a zigzag pattern.

Abstract: A process for producing a synthetic coking coal of high volatile matter content by thermal cracking of a heavy hydrocarbon through the delayed coking process comprising heating said heavy hydrocarbon in a furnace to a temperature between about 380.degree. C. and 500.degree. C. and sufficient to initiate cracking; introducing said heated heavy hydrocarbon into a coking drum where it is maintained at a temperature and for a time sufficient to effect cracking to thereby produce a thermally cracked residue having a volatile matter content of from about 25 to 45 wt % and a Gieseler fluidity of at least about 50,000 ddpm; withdrawing said thermally cracked residue from the coking drum at a temperature selected so as to satisfy the relation:T.ltoreq.0.293x.sup.2 -26.12x+790where T is the temperature (.degree.C.

Abstract: Mono- and di-thiophosphate esters having an isoxazolinone system attached at its 2-position through an optionally alkyl- or phenyl-substituted methylene or ethylene group to the sulphur or to one of the sulphur atoms are useful as insecticides and/or acaricides.

Abstract: A method for printing designs, patterns, characters, letters, and other desired images on an object having a convex or raised surface, wherein the images to be transferred onto the object is first carried on a flexible image carrier, then this flexible image carrying medium is disposed in a mutually opposed relationship with the object to be printed at a predetermined space interval provided therebetween, thereafter the flexible image carrying medium is caused to expand or bulge out toward the raised surface of the object to be printed by a fluid pressure to act on the flexible medium from one side thereof opposite to that where the image is carried, while controlling a degree of expansion of the flexible image carrying medium is controlled by a restrictive frame for the flexible image carrying medium to attain an intimate contact between the flexible image carrying medium and the object to be printed over the entire surface thereof.

Abstract: Isoxazolone derivatives having the formula ##STR1## wherein X is hydrogen atom, a lower alkyl group or a halogen atom; Y is hydrogen atom, a lower alkyl group or phenyl group; and R.sub.1 and R.sub.2 may be the same or different and each represents a lower alkyl group, a cycloalkyl group, an alkenyl group, an alkoxycarbonylalkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, a lower alkoxy group, a phenyl group which may be substituted with one to three substituents or an aralkyl group which may be substituted with one to three substituents in the aryl moiety. They are useful as plant growth regulators, more specifically herbicides and plant growth retardants, and prepared by reacting the corresponding N-halogenocarbonylisoxazolone with an amine or by reacting the corresponding 3-hydroxyisoxazole with a carbamoyl halide.

Abstract: Isoxazolone derivatives having the formula ##STR1## wherein X is hydrogen atom, a lower alkyl group or a halogen atom; Y is hydrogen atom, a lower alkyl group or phenyl group; and R.sub.1 and R.sub.2 may be the same or different and each represents a lower alkyl group, a cycloalkyl group, an alkeyl group, an alkoxycarbonylalkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, a lower alkoxy group, a phenyl group which may be substituted with one to three substituents or an aralkyl group which may be substituted with one to three substituents in the aryl moiety. They are useful as plant growth regulators, more specifically herbicides and plant growth retardants, and prepared by reacting the corresponding N-halogenocarbonylisoxazolone with an amine or by reacting the corresponding 3-hydroxyisoxazole with a carbamoyl halide.