Abstract: To avoid the rotation of a sleeve, providing an enhanced joint force. A reinforcing bar joint 1 according to the present invention includes an elliptic-sectioned sleeve 2, a load transfer rod 3 to be inserted through the sleeve, and wedging means 4. The sleeve 2 is configured so that end portions of reinforcing bars 5a, 5b can be inserted into openings 6a, 6b formed in respective ends of the sleeve 2 so that the reinforcing bars are arranged in series along an identical line. The load transfer rod 3 can also be inserted therethrough in parallel with the end portions of the reinforcing bars 5a, 5b which are inserted into the sleeve 2.

Abstract: A reinforcing bar joint 1 includes a sleeve 2 having an elliptic section, and a wedging means 4. The wedging means 4 is composed of wedge members 4a, 4b which are pressed into between reinforcing bars 5a, 5b. The press-in positions of these wedge members 4a, 4b are spaced away from each other so that the reinforcing bars 5a, 5b, the sleeve 2, and the wedge members 4a, 4b are integrated in the area lying between the press-in positions. This can also move the points of action of tensile forces acting on the reinforcing bars outward, thereby increasing the distance between the points of action and reducing the amount of rotation of the sleeve 2.

Abstract: A reinforcing bar anchorage 1 in accordance with the present invention includes a sleeve 2 having an ellipsoidal cross-sectional shape, an anchoring member 3, and a wedge member 6. The anchoring member 3 includes a steel plate 5 having a substantially circular plate-like body and a connection rod 4 provided upright on the steel plate. The connection rod 4 is formed from a straight steel rod having a circular cross-section. The sleeve 2 is configured such that the connection rod 4 and the reinforcing bar 11 can be inserted thereinto while the connection rod 4 and the reinforcing bar 11 can be parallel to each other so as to overlap each other by a predetermined length. Wedge insertion holes 9, 9 are formed in the sleeve 2 between the reinforcing bar 11 and the connection rod 4 so as to be opposed to each other. A wedge member 6 is designed to be inserted into the wedge insertion holes 9, 9 for press-fitting.

Abstract: A composition for forming a rigid polyurethane foam, characterized in that a composition comprising an organic polyisocyanate, a polyol, a catalyst, a foam stabilizer, water, and if necessary, a hydrochlorofluorocarbon, as a foaming agent, a low molecular weight compound (a) having an unsaturated bond and carbonyl group which are adjacent to each other in an amount of 0.01 to 20 parts by weight per 100 parts by weight of said polyol, as a modifying agent, and if necessary, other auxiliary agent(s). The use of a low molecular weight compound having an unsaturated bond and carbonyl group which are adjacent to each other, as a modifying agent could remarkably improve the brittleness and adhesive properties of a rigid polyurethane foam which was foamed with water, or with water and an HFC, without affecting the reactivity or dimensional stability of the polyurethane foam.

Abstract: A ferrite oxide magnetic material containing, as basic composition, 11 to 19 mol % of iron oxide calculated in terms of Fe2O3, 11 to 25 mol % of zinc oxide calculated in terms of ZnO, 0 to 10 mol % of copper oxide calculated in terms of CuO, and a residual part of nickel oxide, and further containing, as components subsidiary to the basic composition, 0.01 to 15 wt % of lead oxide calculated in terms of PbO, and 0.01 to 15 wt % of silicon oxide and/or talc calculated in terms of SiO2, wherein the ferrite oxide magnetic material has an initial magnetic permeability of not higher than 8, a sintered density of not lower than 4.8 g/cm3 and a stress-resisting and magnetic-field-resisting characteristic in a range of ±5% calculated in terms of the rate &Dgr;L/L of the change of inductance due to the condition of a magnetic field of 1000 G under a compressive stress P=5 (kg/mm2) parallel with a direction of magnetization.

Abstract: This invention relates to a novel imidazo[1,5-a]pyrimidine derivatives and process for their preparation.Moreover, it relates to novel imidazo[1,5-a]pyrimidine derivatives and salts thereof having antifungal activities, and process for their preparation.

Abstract: The present invention is concerned with certain novel halogenobenzoic acid derivatives of the following formula, ##STR1## wherein R is a chlorine atom, amino group or hydroxy group, X is a chlorine atom or bromine atom, which are useful intermediates for the synthesis of antibacterial agent.

Abstract: The present invention is concerned with certain novel benzoylacetic acid ester derivatives (I) which are useful as a intermediates for synthesis of antibacterial agests. ##STR1## wherein R is a lower alkyl group, X is a halogen atom and Y is a chlorine or bromine atom.

Abstract: A proteinaceous substance having the following biochemical characteristics:(A) a strong cytolytic activity against mouse tumor cells L-929, but not cytotoxic activity for normal cells such as human fetus fibroblasts, human adult skin fibroblasts and chinese hamster fibroblasts (Don, V-79) and therefore a high tumor specificity: and(B) a strong anti-tumor and immunogenic activity against Meth-A sarcoma. When said substance is injected intravenously to the syngenic BALB/C mice inoculated with Meth-A sarcoma at a quantity of more than 72 units head, not only hemorrhagic necrosis, but also complete degradation is observed. Thereafter, even if it is attempted again to transplant the Meth-A sarcoma cells under the skin of Mice cured completely, successful plantation is not observed because of an acquired immunity:(C) the substance has no pyrogenetic action after intravenous injection to rabbits:(D) a molecular weight of 45,000.+-.

Abstract: Imidazo [1,5-a] pyrimidine derivatives of the formula (I) exhibit antifungal properties: ##STR1## wherein X.sub.1 and X.sub.2 are selected from the group consisting of a hydrogen atom, a halogen atom, a hydroxy group, an amino or substituted amino group, an alkoxy group, an alkylthio group, an alkylsulfinyl group and an alkylsulfonyl group; R.sub.1, R.sub.2 and R.sub.3 are selected from the group consisting of a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group and an aralkyl group.Compound (I) are prepared by reacting the corresponding .alpha.-acylamino-alkylpyrimidines with condensing agents to form chlorine-substituted imidazo [1,5-a] pyrimidines, then replacing one or both chlorine atoms in the pyrimidine ring with other substituents, if necessary.

Abstract: New compounds effective as antibacterial agent are disclosed. These new compounds include 8-[4-(4-aminobenzyl)-1-piperazinyl]-9-fluoro-6,7-dihydro-5-methyl-1-oxo-1H ,5H-benzo[ij]quinolizine-2-carboxylic acid, hydrates and acid addition salts thereof, and possess superior activities against gram-negative and gram-positive of aerobicbacteria.

Abstract: This invention relates to new compounds of value as antibacterial agent. More particularly, it relates to quinoline carboxylic acid derivatives, the hydrates and the salts thereof.