Abstract: A buckling pattern steel pipe for being buried in ground in which flexure occurs includes: a steel pipe straight portion; and a buckling pattern portion. The buckling pattern portion is in a shape expressed by a sine wave determined based on: a buckling wavelength which is 2.05 to 4.32 times a compression local buckling half wavelength expressed by 1.72?(r·T); and a crest height expressed by a value 8.00 to 16.25 times a pipe thickness of the steel pipe straight pipe portion, and the buckling pattern portion absorbs bending compression deformation caused by faulting of the ground and axial compression deformation caused by the flexure so as to avoid deformation of the steel pipe straight pipe portion, where r is a pipe thickness center radius of the steel pipe straight pipe portion and T is the pipe thickness of the steel pipe straight pipe portion.

Abstract: A buckling pattern steel pipe for being buried in ground in which flexure occurs includes: a steel pipe straight portion; and a buckling pattern portion. The buckling pattern portion is in a shape expressed by a sine wave determined based on: a buckling wavelength which is 2.05 to 4.32 times a compression local buckling half wavelength expressed by 1.72?(r·T); and a crest height expressed by a value 8.00 to 16.25 times a pipe thickness of the steel pipe straight pipe portion, and the buckling pattern portion absorbs bending compression deformation caused by faulting of the ground and axial compression deformation caused by the flexure so as to avoid deformation of the steel pipe straight pipe portion, where r is a pipe thickness center radius of the steel pipe straight pipe portion and T is the pipe thickness of the steel pipe straight pipe portion.

Abstract: Provided are self-fluxing pellets for a blast furnace, characterized in that a CaO/SiO2 mass ratio C/S is 0.8 or more and a MgO/SiO2 mass ratio M/S is 0.4 or more; when an iron content (mass %) in the entire pellet is represented by % TFe, % TFe is 65% or less; and a temperature Ts (unit: ° C.) at which the pressure loss starts to increase sharply in a loaded high-temperature reduction test and which is calculated by the equation below is 1290° C. or higher: Ts=110×C/S+100×M/S+25×% TFe?480.

Abstract: Disclosed is a curable composition which can be cured quickly by light. This curable composition is not left uncured even in portions which are not irradiated with light. A cured product of this curable composition is excellent in heat resistance, oil resistance and weather resistance. Specifically disclosed is a curable composition characterized by containing a vinyl polymer having at least one crosslinkable silyl group on average and a vinyl polymer having at least one photocrosslinkable group on average.

Abstract: Provided are self-fluxing pellets for a blast furnace, characterized in that a CaO/SiO2 mass ratio C/S is 0.8 or more and a MgO/SiO2 mass ratio M/S is 0.4 or more; when an iron content (mass %) in the entire pellet is represented by % TFe, % TFe is 65 or less; and a temperature Ts (unit: ° C.) at which the pressure loss starts to increase sharply in a loaded high-temperature reduction test and which is calculated by the equation below is 1290° C.

Abstract: Disclosed is a curable composition which can be cured quickly by light. This curable composition is not left uncured even in portions which are not irradiated with light. A cured product of this curable composition is excellent in heat resistance, oil resistance and weather resistance. Specifically disclosed is a curable composition characterized by containing a vinyl polymer having at least one crosslinkable silyl group on average and a vinyl polymer having at least one photocrosslinkable group on average.

Abstract: The present invention has for its object to provide a curable composition which, despite its low viscosity, gives a cured product with a high gel fraction, low residual tack, low modulus, high elongation and good flexibility. The present invention relates to a curable composition comprising the following two components: (A) a vinyl polymer having at least one crosslinking silyl group on the average per molecule: and (B) a photocurable substance, (C) an air oxidation-curable substance, (D) a high molecular plasticizer, (E) a reactive plasticizer or (F) a compound having one silanol group in its molecule and/or a compound capable of reacting with moisture to give a compound having one silanol group in the molecule.

Abstract: The present invention has its object to provide a curable composition, although having low viscosity itself, which gives a cured product, when being cured, which has wide range of elasticity, from hard to soft, which is excellent in weather resistance and heat resistance, and the hardness and brittleness (characteristic to epoxy resins) of which have been improved to have rubber elasticity, and which has high adhesion strength and is transparent. The curable composition of the present invention comprises a vinyl polymer containing at least one crosslinkable silyl group on average and an epoxy resin. When being used for adhering or sealing a transparent material such as glass, polycarbonates, and acrylic resins, the curable composition of the invention is usable for treatment with sufficiently retaining the transparency, which is an aesthetic characteristic.

Abstract: A liquid sealing agent used for automobile parts, electric parts, various kinds of machine parts and the like exhibits good oil resistance, heat resistance, adhesiveness and flexibility. A vinyl polymer has at least one crosslinkable silyl group and can yield a cured product exhibiting an oil resistance superior to that of a cured product from a reference polymer obtained by replacing the repeating unit thereof with butyl acrylate alone, in any one item of the immersion test according to JIS K 6258 for the land use 3-5 lubricating oil specified in JIS K 2215.

Abstract: It is an object of the present invention to provide a curable which has good storage stability and can give cured products retaining the high elongation characteristic originating from the polyether polymer and showing a high gel fraction and good weatherability. Thus, the present invention provides a durable composition which comprises the following two components: a polyether polymer having at least one crosslinkable functional group and a vinyl polymer which is compatible with said polyether polymer having at least one crosslinkable functional group at a polymer terminus. Further, the present invention provides a curable composition which comprises the following three components: a polyether polymer having at least one crosslinkable functional group, a vinyl polymer incompatible with said polyether polymer and having at least one crosslinkable function group, and a compatibilizing agent capable of compatibilizing said polyether polymer and said vinyl polymer with each other when added to a mixture thereof.

Abstract: The present invention has for its object to provide a curable composition which, despite its low viscosity, gives a cured product with a high gel fraction, low residual tack, low modulus, high elongation, and good flexibility. The present invention relates to a curable composition comprising the following two components: (A) a vinyl polymer having at least one crosslinking silyl group on the average per molecule: and (B) a photocurable substance, (C) an air oxidation-curable substance, (D) a high molecular plasticizer, (E) a reactive plasticizer or (F) a compound having one silanol group in its molecule and/or a compound capable of reacting with moisture to give a compound having one silanol group in the molecule.

Abstract: The present invention has for its object to provide a curable composition which, despite its low viscosity, gives a cured product with a high gel fraction, low residual tack, low modulus, high elongation, and good flexibility. The present invention relates to a curable composition comprising the following two components: (A) a vinyl polymer having at least one crosslinking silyl group on the average per molecule: and (B) a photocurable substance, (C) an air oxidation-curable substance, (D) a high molecular plasticizer, (E) a reactive plasticizer or (F) a compound having one silanol group in its molecule and/or a compound capable of reacting with moisture to give a compound having one silanol group in the molecule.

Abstract: A liquid sealing agent used for automobile parts, electric parts, various kinds of machine parts and the like exhibits good oil resistance, heat resistance, adhesiveness and flexibility. A vinyl polymer has at least one crosslinkable silyl group and can yield a cured product exhibiting an oil resistance superior to that of a cured product from a reference polymer obtained by replacing the repeating unit thereof with butyl acrylate alone, in any one item of the immersion test according to JIS K 6258 for the land use 3-5 lubricating oil specified in JIS K 2215.

Abstract: A liquid sealing agent used for automobile parts, electric parts, various kinds of machine parts and the like has encountered a problem that it is difficult to combine good oil resistance, heat resistance, adhesiveness and flexibility. The present invention provides a liquid gasket which improves these problems, and a material thereof. In the present invention, it is used a vinyl polymer which has at least one crosslinkable silyl group and can yield a cured product exhibiting an oil resistance superior to that of a cured product from a polymer obtained by replacing the repeating unit thereof with butyl acrylate alone, in any one item of the immersion test according to JIS K 6258 for the land use 3-5 lubricating oil specified in JIS K 2215.

Abstract: The present invention provides a curable composition containing (A) a vinyl polymer (I) having a crosslinkable functional group and (B) an organic polymer (II) having a group reactive with an isocyanato group and having a different main chain structure from that of the component (A). It is possible to provide a composition having balanced physical properties in which characteristics of both the polymer (I) as the component (A) and the polymer (II) as the components (B) are exploited. Specifically, the present invention provides cured objects having high strength at break, and good heat resistance, weatherability, and oil resistance.

Abstract: A composition comprising a vinyl polymer having a crosslinkable silyl group may suffer from a delay in curing after the storage. The present invention relates to the following items. A curable composition comprising, as an essential component, (I) a vinyl polymer, which has at least one crosslinkable silyl group at the terminus and also has a monomer containing a methyl ester group as a constituent unit. A sealant, a liquid gasket, and an adhesive, wherein the above curable composition is used. A polymer has at least one crosslinkable functional group at the terminus and also has a vinyl polymer as a main chain thereof, wherein 2% to 80% by weight of monomers based on the total monomers constituting the main chain is methyl acrylate. A curable composition with improved storage stability, which comprises the following two components as essential components: (a) a vinyl polymer having at least one crosslinkable silyl group; and (b) a compound having a methyl ester group other than the compound (a).

Abstract: The present invention has for its object to provide a curable composition which, despite its low viscosity, gives a cured product with a high gel fraction, low residual tack, low modulus, high elongation, and good flexibility. The present invention relates to a curable composition comprising the following two components: (A) a vinyl polymer having at least one crosslinking silyl group on the average per molecule: and (B) a photocurable substance, (C) an air oxidation-curable substance, (D) a high molecular plasticizer, (E) a reactive plasticizer or (F) a compound having one silanol group in its molecule and/or a compound capable of reacting with moisture to give a compound having one silanol group in the molecule.

Abstract: The present invention has for its object to provide a curable composition which, despite its low viscosity, gives a cured product with a high gel fraction, low residual tack, low modulus, high elongation, and good flexibility. The present invention relates to a curable composition comprising the following two components: (A) a vinyl polymer having at least one crosslinking silyl group on the average per molecule: and (B) a photocurable substance, (C) an air oxidation-curable substance, (D) a high molecular plasticizer, (E) a reactive plasticizer or (F) a compound having one silanol group in its molecule and/or a compound capable of reacting with moisture to give a compound having one silanol group in the molecule.

Abstract: The present invention is a curable composition comprising a vinyl polymer having at least one crosslinkable silyl group on average and a compound having an ?,?- or ?,?-diol structure in the molecule. The curable composition of the present invention can be used for obtaining a cured product which has superior weather resistance and heat resistance, and good rubber physical properties such as low stress and high elongation therefrom.

Abstract: The present invention is constituted of a curable composition which comprises, as essential components, the following four components: (A) a vinyl polymer having at least one hydrosilylatable alkenyl group within the molecule, (B) a hydrosilyl group-containing compound, (C) a hydrosilylation catalyst, and (D) an aliphatic unsaturated bond-containing compound, and which may further comprise (E) an amine compound. Moreover, the present invention is constituted of a curable composition which comprises, as essential components, the following three components: (A) a vinyl polymer having at least one hydrosilylatable alkenyl group within the molecule, (B) a hydrosilyl group-containing compound, and (G) an organic compound having at least one hydrosilylatable alkenyl or alkynyl group within the molecule [other than the above-mentioned component (A)].