Abstract: The present invention relates to a polygonal rod in which a columnar body is provided between angled portions of a rod body, the polygonal rod having improved usability by swinging the rod body along a longitudinal direction of the columnar body. The polygonal rod includes four V-shaped longitudinal members (A, B) and a pair of flat-plate-like longitudinal members (C) to form a rod body (F) having a hexagonal shape, and further includes at least a pair of hollow portions (24, 25), in which a columnar body (21) is formed between angled portions (22, 22) of the rod body (F), and a longitudinal direction of the columnar body (21) is along a swinging direction (X) of the rod body (F), to thereby obtain the lightweight and rigid rod body (F).

Abstract: Provided is a process for producing ?-hydroxycarboxylic esters from ?-hydroxycarboxylic amides and aliphatic alcohols, wherein it is a production process which is inhibited in a production cost and enhanced in a conversion rate and a selectivity and which is industrially advantageous. To be specific, it is a production process for ?-hydroxycarboxylic ester characterized by subjecting ?-hydroxycarboxylic amide and aliphatic alcohol to a gas phase reaction in the presence of a zirconium dioxide catalyst. A catalyst lifetime is improved to a large extent by using a zirconium dioxide catalyst containing a specific element.

Abstract: To provide a polygonal rod, which is formed into a polygonal shape provided with hollow portions formed in an inside thereof with use of a plurality of T-shaped longitudinal members each having a T-shaped cross-section, and which sufficiently has resilience after bending of the rod. The polygonal rod has a longitudinal-pole-like entire shape and a polygonal outer peripheral shape in a cross-section thereof, the polygonal rod including at least a plurality of T-shaped longitudinal members (10) each having a T-shaped cross-section, to exhibit a hollow shape.

Abstract: An efficient process for producing glycidyl 2-hydroxyisobutyrate useful as a reactive diluent is provided. When glycidyl 2-hydroxyisobutyrate is produced by reacting allyl 2-hydroxyisobutyrate with hydrogen peroxide, a solution in which allyl 2-hydroxyisobutyrate is dissolved in an aliphatic ester as a solvent is reacted with hydrogen peroxide in the presence of a crystalline titanosilicate catalyst. Thus, a production process of glycidyl 2-hydroxyisobutyrate, which is small in degradation of purity and yield due to generation of peroxides or the like, and products thereof are provided.

Abstract: The conventional wire guide, constructed as described above, has the following problems. In the case of the above-mentioned construction of the line guide portion as illustrated in FIGS. 17 and 18, the angle formed by the portion where the line guide portion (4) and the fishing line are most strongly held in contact with each other, that is, the portion of the line guide (4) at maximum distance from the surface (21) of the fishing rod (1), and by the longitudinal direction of the base (3), that is, the advancing direction A of the fishing line (5), is a right angle (?4). Therefore, the slipping resistance offered to the fishing line, in particular, the resistance at the time of slipping start is large, which adversely affects the flying of the fishing line at the time of surf casting and the feel of use.

Abstract: A process for producing a catalyst for cyanhydrin hydration, which comprises a manganese oxide as a main component and is excellent in both physical strength and reaction activity, is provided, as well as a catalyst for cyanhydrin hydration obtained by the production process. Specifically, a process for producing a catalyst which is useful for cyanhydrin hydration and contains a manganese oxide as a main component, potassium, and one or more elements selected from the group consisting of bismuth, vanadium and tin, in which the above compounds are mixed together in an aqueous system; the resulting slurry precipitate is subjected to solid-liquid separation; and the resulting hydrous cake is dried in at least two separate stages comprising a predrying and a main drying, is provided, as well as a catalyst for cyanhydrin hydration obtained by the production process.

Abstract: A process for producing a catalyst for cyanhydrin hydration, which comprises a manganese oxide as a main component and is excellent in both physical strength and reaction activity, is provided, as well as a catalyst for cyanhydrin hydration obtained by the production process. Specifically, a process for producing a catalyst which is useful for cyanhydrin hydration and contains a manganese oxide as a main component, potassium, and one or more elements selected from the group consisting of bismuth, vanadium and tin, in which the above compounds are mixed together in an aqueous system; the resulting slurry precipitate is subjected to solid-liquid separation; and the resulting hydrous cake is dried in at least two separate stages comprising a predrying and a main drying, is provided, as well as a catalyst for cyanhydrin hydration obtained by the production process.

Abstract: An efficient process for producing glycidyl 2-hydroxyisobutyrate useful as a reactive diluent is provided. When glycidyl 2-hydroxyisobutyrate is produced by reacting allyl 2-hydroxyisobutyrate with hydrogen peroxide, a solution in which allyl 2-hydroxyisobutyrate is dissolved in an aliphatic ester as a solvent is reacted with hydrogen peroxide in the presence of a crystalline titanosilicate catalyst. Thus, a production process of glycidyl 2-hydroxyisobutyrate, which is small in degradation of purity and yield due to generation of peroxides or the like, and products thereof are provided.