Abstract: A vehicle body frame structure includes a side sill and a rear frame continuously joined, with a curved portion formed in the vicinity of a boundary between the side sill and the rear frame. In the curved portion, a continuous change is achieved extending from the side sill side to the rear frame side from a side sill side closed cross-sectional structure portion where a first stiffener is provided to a rear frame side closed cross-sectional structure portion where a second stiffener is provided having a different direction of alignment from that of the first stiffener. An improvement is obtained in the strength of a curved portion in the vicinity of a boundary between a side sill and a rear frame when these are joined together so as to be continuous with each other.

Abstract: A wide-viewing-angle lenticular lens sheet and a production method therefore. The lenticular lens sheet (1) comprises a plurality of lenticular lenses (11) diposed on one surface of a translucent substrate, and convex lenses (12) disposed on the other surface of the translucent substrate each at a condensing position to which light from a lenticular lens (11) is condensed. External light absorbing units each consisting of only slant surfaces (13a, 13b) are disposed on the other surface of the translucent substrate at positions different from those of the lenses (12).

Abstract: A vehicle body frame structure includes a side sill and a rear frame continuously joined, with a curved portion formed in the vicinity of a boundary between the side sill and the rear frame. In the curved portion, a continuous change is achieved extending from the side sill side to the rear frame side from a side sill side closed cross-sectional structure portion where a first stiffener is provided to a rear frame side closed cross-sectional structure portion where a second stiffener is provided having a different direction of alignment from that of the first stiffener. An improvement is obtained in the strength of a curved portion in the vicinity of a boundary between a side sill and a rear frame when these are joined together so as to be continuous with each other.

Abstract: It is an object of the present invention to provide a method for efficiently producing a lenticular lens providing an excellent contrast.

Abstract: A colored resin water distribution pipe formed of a colored resin composition which comprises a polyolefin resin as a main component and a blue fine powder pigment of a composite oxide which comprises two or more metal oxides and has a spinel crystal structure and a BET specific surface area of about 30 m2/g or more. The blue fine powder pigment is covered with an inorganic compound. The blue fine powder pigment is preferably treated mechanochemically by grinding. The colored resin water distribution pipe exhibits excellent resistance to water containing chlorine as a bactericide so that discoloration of the coloring component and formation of blisters on the inner face of the pipe by water containing chlorine are prevented.

Abstract: A finely divided pigment is formed of an aggregate of primary particles. A number of primary particles of not greater than 0.1 &mgr;m in particle size is at least 95% of an entire number of the primary particles, and a number of primary particles of greater than 0.1 &mgr;m in particle size is at most 5% of the entire number of the primary particles. The finely divided pigment can be produced by grinding a parent pigment (pre-division pigment) together with a water-soluble inorganic salt and a water-soluble organic solvent in a grinding machine at a temperature of from 30 to 90° C. for 2 to 6 hours under a load, and then removing the water-soluble inorganic salt and the water-soluble organic solvent. A coloring composition comprises a dispersing medium and the finely divided pigment dispersed in the dispersing medium.

Abstract: Near-infrared transmitting black azo pigments are represented by the following formula (1) and have a crystalline form selected from the group consisting of a thin, long crystalline form and a leaf-shaped crystalline form: wherein R represents at least one group selected from the group consisting of lower alkyl groups having 1 to 3 carbon atoms and lower alkoxy groups having 1 to 3 carbon atoms, n stands for an integer of from 1 to 5, and, when n is other than 1, Rs may be the same or different. These near-infrared transmitting black azo pigments can be produced by treating the corresponding black azo pigments of the formula (1) with an alkali in an alcohol. Near-infrared transmitting black azo pigments compositions each comprises one or more of the near-infrared transmitting black azo pigments and a near-infrared transmitting material as a vehicle.

Abstract: A finely divided pigment is formed of an aggregate of primary particles. A number of primary particles of not greater than 0.1 &mgr;m in particle size is at least 95% of an entire number of the primary particles, and a number of primary particles of greater than 0.1 &mgr;m in particle size is at most 5% of the entire number of the primary particles. The finely divided pigment can be produced by grinding a parent pigment (pre-division pigment) together with a water-soluble inorganic salt and a water-soluble organic solvent in a grinding machine at a temperature of from 30 to 90° C. for 2 to 6 hours under a load, and then removing the water-soluble inorganic salt and the water-soluble organic solvent. A coloring composition comprises a dispersing medium and the finely divided pigment dispersed in the dispersing medium.

Abstract: A near-infrared reflecting composite pigment comprises a near-infrared non-absorbing colorant and a white pigment coated with the near-infrared non-absorbing pigment. The near-infrared reflecting composite pigment can be produced by mixing a colorant dispersion, in which the near-infrared non-absorbing colorant is dispersed in a liquid medium, with the white pigment in a form selected from powder or a dispersion and then drying the resultant mixture. A near-infrared reflecting coating agent comprises as a coloring agent the near-infrared reflecting composite pigment. A near-infrared reflecting material comprises a base material coated on a surface thereof with the near-infrared reflecting coating agent.

Abstract: A near-infrared reflecting composite pigment comprises a near-infrared non-absorbing colorant and a white pigment coated with the near-infrared non-absorbing pigment. The near-infrared reflecting composite pigment can be produced by mixing a colorant dispersion, in which the near-infrared non-absorbing colorant is dispersed in a liquid medium, with the white pigment in a form selected from powder or a dispersion and then drying the resultant mixture. A near-infrared reflecting coating agent comprises as a coloring agent the near-infrared reflecting composite pigment. A near-infrared reflecting material comprises a base material coated on a surface thereof with the near-infrared reflecting coating agent.

Abstract: Near-infrared transmitting black azo pigments are represented by the following formula (1) and have a crystalline form selected from the group consisting of a thin, long crystalline form and a leaf-shaped crystalline form.

Abstract: A colored resin composition for water distribution pipes comprising a resin which comprises a polyolefin resin as a main component and a blue fine powder pigment of a composite oxide which is a fine powder, contains elements other than the main metals introduced into the crystal structure, or has been treated mechanochemically and a colored resin water distribution pipe comprising this colored resin composition.

Abstract: Provided is a lenticular lens sheet on which external light reflection is greatly reduced and which gives high-contrast sharp images. The lenticular lens sheet has a plurality of lenticular lenses formed on one surface of a light-transmissive substrate and having, on the other surface of the substrate, convex lenses 2, and external light-absorbing ridges 3 as formed alternately with those convex lenses and coated with an external light-absorbing layer 4 on their tops, in which every furrow 5 between each convex lens 2 and each external light-absorbing ridge 3 that ate adjacent to each other is further coated with an external light-absorbing layer 6. The external light-absorbing layer may be not only on the top of each ridge but also around each ridge adjacent to the top thereof.

Abstract: A structure of a two-phase steel is controlled by subjecting a steel containing C: 0.05-0.80 mass % to a strain work in a true strain quantity of not less than 0.1 at a temperature zone of &agr;-phase or &ggr;-phase and then applying a magnetic field of 0.1-20 T thereto within a temperature range forming a two-phase zone of &agr;-phase and &ggr;-phase.

Abstract: An economical, industrial and ecologically-sound process for producing high test hypochlorite and a calcium chloride aqueous solution comprising the steps of (a) preparing milk of lime, (b) chlorinating the milk of lime to crystallize calcium hypochlorite dihydrate in the presence of the prismatic calcium hypochlorite dihydrate seed crystals having a specific habit to prepare a slurry of coarse calcium hypochlorite dihydrate crystals, (c) separating the slurry into a wet cake of calcium hypochlorite dihydrate crystals and a mother liquor containing calcium hypochlorite and calcium chloride, (d) drying the wet cake to provide high test hypochlorite, and (e) adding hydrochloric acid to the mother liquor or bringing the mother liquor into contact with an oxide of at least one of Mn, Fe, Co, Ni, Cu, and Pd to decompose the calcium hypochlorite to obtain a calcium chloride aqueous solution.

Abstract: Pigment dispersions for color filters are composed of pigments, dispersants, film-forming resins and liquid media. The dispersants comprises compounds represented by the following formula (I): wherein X and X′ each independently represent H, OH, alkoxy, primary, secondary or tertiary amino, or acylamino; Y represents an anthraquinonylamino, phenylamino or phenoxy group having H, OH, alkoxy, primary, secondary or tertiary amino, or acylamino at the 4-position or 5-position; A and B each independently represent alkyl, cycloalkyl or aryl, and at least one of A and B has at least one substituent group containing a basic nitrogen atom; and Z represents H, CN, halogen, alkyl, alkoxy, NO2, benzoylamino or 3-benzoyl, and the 3-benzoyl group may be fused together with X to form an acridone ring. These pigment dispersions are useful for the production of color filters.

Abstract: Dispersants for organic pigments comprise compounds represented by the following formula (I): wherein X and X′ each independently represent H, OH, alkoxy, primary, secondary or tertiary amino, or acylamino; Y represents an anthraquinonylamino, phenylamino or phenoxy group having H, OH, alkoxy, primary, secondary or tertiary amino, or acylamino at the 4-position or 5-position; A and B each independently represent alkyl, cycloalkyl or aryl, and at least one of A and B has at least one substituent group containing a basic nitrogen atom; and Z represents H, CN, halogen, alkyl, alkoxy, NO2, benzoylamino or 3-benzoyl, and the 3-benzoyl group may be fused together with X to form an acridone ring. Pigment dispersions making use of the above dispersants are suited for the production of writing or recording pigment inks.

Abstract: A structure of a two-phase steel is controlled by subjecting a steel containing C: 0.05-0.80 mass % to a strain work in a true strain quantity of not less than 0.1 at a temperature zone of &agr;-phase or &ggr;-phase and then applying a magnetic field of 0.1-20T thereto within a temperature range forming a two-phase zone of &agr;-phase and &ggr;-phase.

Abstract: A titanium compound for photochemical reactions having a high catalytic activity per unit surface area and extremely good stability to heat treatment is made of a substitutional solid solution of titanium oxide in which aluminum atoms occupy titanium sites of the titanium oxide uniformly at a predetermined ratio. Aluminum atoms preferably occupy about 0.01 to 0.5% of the titanium sites. The titanium compound for photochemical reactions is obtained from a complex alkoxide of titanium and aluminum.

Abstract: Thin films of the lead titanate system expressed by the general formula: Pb(Zr.sub.x Ti.sub.1-x)O.sub.3, where 0.ltoreq.x<1, are produced by (a) preparing a complex alkoxide including at least lead and titanium atoms by a liquid-phase reaction of lead carboxylate with at least one alkoxide of titanium and zirconium alkoxides, (b) dissolving the resultant complex alkoxide in water to prepare an aqueous solution of the complex alkoxide, and (c) immersing a substrate in the resultant aqueous solution to deposit a thin film of the lead titanate system on said substrate by hydrolysis of the complex alkoxide. The resultant thin film may heated to a temperature ranging from 400 to 900.degree. C. to produce thin films with a perovskite structure.