Abstract: A copper-based alloy material including a multiphase structure containing a matrix of a ? phase and a precipitation phase of a B2-type crystal structure dispersed in the matrix, where the copper-based alloy material includes a composition containing 8.6 to 12.6% by mass of Al, 2.9 to 8.9% by mass of Mn, 3.2 to 10.0% by mass of Ni, and Cu.

Abstract: A processing agent containing five specified kinds of components including esters and ethers as required components is used in the production or fabrication process of synthetic fibers such that superior spinning property is maintained and synthetic fibers with superior yarn quality and dyeing property can be obtained. Aqueous liquids of such processing agents, processing methods using such liquids and synthetic fibers obtained by such methods are also presented.

Abstract: A processing agent containing five specified kinds of components including esters and ethers as required components is used in the production or fabrication process of synthetic fibers such that superior spinning property is maintained and synthetic fibers with superior yarn quality and dyeing property can be obtained. Aqueous liquids of such processing agents, processing methods using such liquids and synthetic fibers obtained by such methods are also presented.

Abstract: Resin compositions capable of responding to the advanced requirement of recent years as having both total light transmittance and haze of over 90% are obtained by causing polycarbonate resin to contain non-spherical hollow fine particles of a specified kind, having a spindle shape as a whole with a major axis and a minor axis, a plurality of concave parts on the surface, a hollow part inside connected to the surface through a crack extending along the major axis.

Abstract: Optical diffusive resin compositions are produced by adding organic silicone fine particles having a cross-link structure prepared by a specified process at a specified rate to a polycarbonate or polyacryl polymer material and mixing the particles and the material in a melted condition of the polymer material. The organic silicone fine particles are obtained by generating silanol compounds by using silanol group forming silicides of specified kinds at a specified ratio, obtaining an aqueous suspension by a condensation reaction, thereafter adjusting this aqueous suspension to a specified pH value, and separating the organic silicone particles as a solid component from the pH-adjusted aqueous suspension.

Abstract: Organosilicone fine particles of size in the range of 0.1-20 ?m, each having 20 or more faces with indefinite shapes and a network of convex parts that surround these faces with indefinite shapes on its surface, and being spherical as a whole respond to highly advanced requirements of recent years including improvements in optical characteristics of resin compounds, usability and feeling of cosmetics and maintainability of fluidity of development toners. The invention further provides methods of producing such organosilicone fine particles.

Abstract: Optical diffusive resin compositions are presented, capable of yielding optical diffusive moldings that are superior not only in rigidity and dimensional stability but also in heat resistance, optical transmissivity and optical diffusivity, as well as optical diffusive moldings molded by using them. Such optical diffusive resin compositions contain for 100 mass parts of a thermoplastic polymer material 0.1-10 mass parts of organosilicone fine particles of a specific kind comprising polysiloxane cross-linking structures, each particle having a hollow hemispherical shape as a whole, having a cross-sectional shape with an inner minor arc, an outer minor arc which covers it and ridge lines connecting their ends.

Abstract: Non-spherical fine particles capable of responding to highly advanced requirements of recent years, including further improvements in optical characteristics such as total light transmittance and optical diffusible property related to resin molded products and further improvements in feeling, soft focus, coverage and durability related to cosmetic products, as well as methods of their production and their use are provided. These non-spherical fine particles each have a polyhedral general shape with six or more surfaces each of which is formed as a concave surface, satisfying all of the conditions that the average value of the maximum external diameters L1 of the non-spherical fine particles is in the range of 0.1-20 ?m, that the ratios between the minimum external diameters L2 and the maximum external diameters L1 of the individual non-spherical fine particles have an average value in the range of 0.60-0.

Abstract: Organosilicone fine particles of size in the range of 0.1-20 ?m, each having 20 or more faces with indefinite shapes and a network of convex parts that surround these faces with indefinite shapes on its surface, and being spherical as a whole respond to highly advanced requirements of recent years including improvements in optical characteristics of resin compounds, usability and feeling of cosmetics and maintainability of fluidity of development toners. The invention further provides methods of producing such organosilicone fine particles.

Abstract: Resin compositions with improved optical characteristics and cosmetic materials with improved feeling, soft focus and durability contain non-spherical hollow fine particles having a spindle shape as a whole with a major axis and a minor axis, a plurality of concave parts on the surface, a hollow part inside connected to the surface through a crack extending along the major axis, the average length of the major axes being 0.1-30 ?m and the ratio of the average length of the minor axes to the average length of the major axes being 0.3-0.8.

Abstract: Imidazoquinazolin-2-one compounds having platelet aggregation inhibitory activity is disclosed. These compounds have high water-solubility and reduced influences on the circulatory system and are useful for treatment and prophylaxis of intravascular thromboembolism and temporary ischemia as well as prevention of thrombus upon use of prosthetic apparatus.

Abstract: 7-Piperidino-1,2,3,5-tetrahydroimidazo[2,1-b]-quinazolin-2-one having platelet aggregation inhibitory activity is disclosed. The compound has high water-solubility and reduced influences on the circulatory system.

Abstract: A 1,2,3,5-tetrahydroimidazothienopyrimidin-2-one represented by the formula: ##STR1## wherein one of Z.sub.1, Z.sub.2 and Z.sub.3 is a sulfur atom and the remaining two of Z.sub.1, Z.sub.2 and Z.sub.3 represent CH, R.sub.1 and R.sub.2 each represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a phenyl group, a chlorine atom or, when taken together R.sub.1 and R.sub.2 represent an alkylene chain of 3 to 5 carbon atoms, and R.sub.3 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and a pharmaceutically acceptable acid addition salt thereof, which exhibit an excellent blood platelet anti-aggregatory activity and are useful as anti-thrombotic agents.

Abstract: A method for treating diabetes comprising administering a therapeutically effective amount of a 2-(2,2-disubstituted)ethylimidazoline of the general formula (I) ##STR1## wherein R is a phenyl group or a 2-pyridyl group or the pharmaceutically acceptable acid addition salts thereof, to a patient having diabetes.

Abstract: 2-SUBSTITUTED-1,3-DIAZACYCLIC COMPOUNDS OF THE FORMULA: ##STR1## wherein R.sub.1 represents a hydrogen atom, a halogen atom, a lower alkyl group or a lower alkoxy group; R.sub.2 represents a hydrogen atom, a lower alkoxycarbonyl group, an aliphatic acyl group or an aromatic acyl group, the aromatic ring of which may have one or more substituents selected from a halogen atom, a lower alkyl group, a lower alkoxy group, an acyl group and an acyloxy group; R.sub.3 represents a hydrogen atom, a lower alkyl group, a lower hydroxyalkyl group or an aralkyl group; R.sub.4 represents a hydrogen atom, a lower alkyl group or an aryl group; R.sub.6 represents a cyclohexyl group, a pyridyl group or a phenyl group which may have a substituent selected from a halogen atom, a lower alkyl group and a lower alkoxy group; A represents -N.dbd.