Abstract: Provided are a curable composition comparable to a curing rate by conventional sulfur while maintaining performance required as a cured product even when a crosslinking agent is replaced with a peroxide, and a sealant containing a cured product of the curable composition. A curable composition containing a conjugated diene-based polymer (A) and a crosslinking agent (B), in which the conjugated diene-based polymer (A) has 100 moles or more of double bonds in a side chain per mole of the polymer.

Abstract: A modified liquid diene rubber (A) has a functional group (a) derived from an acid anhydride, and satisfies all the requirements (I) to (III) below: (I) The functional group equivalent weight of the functional groups (a) is in the range of 400 to 3,500 g/eq. (II) The polystyrene-equivalent number average molecular weight (Mn) measured by gel permeation chromatography (GPC) is in the range of 5,000 to 20,000. (III) The melt viscosity at 38° C. is not less than 3 Pa·s and X (K) is not less than 6100 K wherein X is the slope of a linear line passing through two points in a graph in which the two points are values of melt viscosity ? (Pa·s) at 38° C. and 60° C. measured with a Brookfield viscometer which are plotted as Ln[?/(Pa·s)] on ordinate versus 1/T (K?1) on abscissa (with the proviso that T is temperature (K)).

Abstract: Provided are an emulsion composition which can be produced more easily than a conventional method and has excellent emulsion stability, and a method for producing the same. The emulsion composition contains a liquid conjugated diene rubber, a diluent having a vapor pressure at 20° C. of 10 Pa or less, a surfactant, and water.

Abstract: The present invention provides a modified liquid diene rubber that is capable of giving a crosslinked product with excellent adhesion evaluated in terms of shear bond strength, a rubber composition including the modified liquid diene rubber, and a sealing material obtained from the rubber composition. A modified liquid diene rubber (A) has a functional group (a) derived from an acid anhydride, and contains butadiene units in an amount of 50 mass % or more based on the total monomer units, and the polystyrene-equivalent weight average molecular weight (Mw) measured by gel permeation chromatography (GPC) is in the range of 5,000 to 50,000.

Abstract: To provide a conjugated diene graft polymer having high transparency, heat resistance and weather resistance, and a method for producing the conjugated diene graft polymer. A method for producing a conjugated diene graft polymer in which a side chain (b) including a polymer including at least one monomer unit selected from the group consisting of a conjugated diene unit and an aromatic vinyl compound unit is bonded to a main chain (a) including a polymer including a conjugated diene unit, via a hetero atom Z serving as a branching point and having a valence of not less than 3, the method including a step of reacting a specific active end polymer and a specific functional group-modified conjugated diene polymer having a functional group in a side chain to thereby produce a conjugated diene graft polymer; and a step of recovering the conjugated diene graft polymer obtained.

Abstract: A diene rubber may give a crosslinked product or forming a rubber composition which has high levels of both ice grip performance and wet grip performance; a rubber composition may include the diene rubber; a tire member may be formed from the rubber composition or a crosslinked product thereof; and a tire may include the rubber composition or a crosslinked product thereof as at least a portion thereof. A resin modifier may include the diene rubber and give such a resin composition. A diene rubber may include butadiene units and an Mw of 5,000 to 50,000, and may satisfy (i) to (iii): (i) ?cp>0; (ii) ?12>40; and (iii) ?cp/(?12?40)?2, wherein ?12 is the mol % of 1,2-bonded butadiene units, and ?cp is the mol % of specific structural units, both with respect to all butadiene units present in the diene rubber.

Abstract: Provided are a rubber composition which can give a crosslinked product with enhanced tensile strength, and a pneumatic tire including the rubber composition as a portion thereof. The rubber composition includes a solid rubber (A), a hydrogenated aromatic vinyl-conjugated diene random copolymer (B), and a filler (C). The random copolymer (B) satisfies the following (i) to (iv). (i) The content of aromatic vinyl units is 10 to 70 mass %. (ii) The vinyl content in conjugated diene units of the random copolymer (B) before hydrogenation is 10 to 70 mol %. (iii) The hydrogenation ratio of the conjugated diene units is not less than 10 mol %. (iv) The weight average molecular weight is 3,000 to 100,000.

Abstract: A modified liquid diene rubber (A) has a functional group (a) derived from an acid anhydride, and satisfies all the requirements (I) to (III) below: (I) The functional group equivalent weight of the functional groups (a) is in the range of 400 to 3,500 g/eq. (II) The polystyrene-equivalent number average molecular weight (Mn) measured by gel permeation chromatography (GPC) is in the range of 5,000 to 20,000. (III) The melt viscosity at 38° C. is not less than 3 Pa·s and X (K) is not less than 6100 K wherein X is the slope of a linear line passing through two points in a graph in which the two points are values of melt viscosity ? (Pa·s) at 38° C. and 60° C. measured with a Brookfield viscometer which are plotted as Ln[?/(Pa·s)] on ordinate versus 1/T (K?1) on abscissa (with the proviso that T is temperature (K)).

Abstract: An electroconductive endless belt can withstand repeated continuous operation, in particular has anti-setting properties, and has consistent gloss and electrical conductivity. An image-forming apparatus including the electroconductive endless belt is also provided. The electroconductive endless belt contains a substrate and a conductive filler. The substrate contains a thermoplastic polyalkylene naphthalate resin and at least two types of thermoplastic resins having an ester bond other than the thermoplastic polyalkylene naphthalate resin. The weight ratio of the thermoplastic polyalkylene naphthalate resin to the at least two types of thermoplastic resins having an ester bond is in the range of 95:5 to 55:45. The at least two types of thermoplastic resins having an ester bond contains at least one amorphous thermoplastic resin and at least one crystalline thermoplastic resin.

Abstract: The objective of the present invention is to provide a shield method and shield material enabling to hold a flexibility degree with an enclosure shape and to make electronic component enclosures small and thin types. The shield method for electronic component enclosures in the present invention comprises a process in which a conductive layer is formed at a basic sheet and a shield sheet forming a non-hardening adhesive layer at the counter face to the basic layer is punched out to fit in individual electronic component enclosures for forming the shield materials, a process in which the shield material is attached to said electronic component enclosure, and a process in which a conductive adhesive is formed between a ground electrode set at said electronic component enclosure and the conductive layer to connect electrically.

Abstract: An electroconductive endless belt can withstand repeated continuous operation, in particular has anti-setting properties, and has consistent gloss and electrical conductivity. An image-forming apparatus including the electroconductive endless belt is also provided. The electroconductive endless belt contains a substrate and a conductive filler. The substrate contains a thermoplastic polyalkylene naphthalate resin and at least two types of thermoplastic resins having an ester bond other than the thermoplastic polyalkylene naphthalate resin. The weight ratio of the thermoplastic polyalkylene naphthalate resin to the at least two types of thermoplastic resins having an ester bond is in the range of 95:5 to 55:45. The at least two types of thermoplastic resins having an ester bond contains at least one amorphous thermoplastic resin and at least one crystalline thermoplastic resin.

Abstract: The objective of the present invention is to provide a shield method and shield material enabling to hold a flexibility degree with an enclosure shape and to make electronic component enclosures small and thin types. The shield method for electronic component enclosures in the present invention comprises a process in which a conductive layer is formed at a basic sheet and a shield sheet forming a non-hardening adhesive layer at the counter face to the basic layer is punched out to fit in individual electronic component enclosures for forming the shield materials, a process in which the shield material is attached to said electronic component enclosure, and a process in which a conductive adhesive is formed between a ground electrode set at said electronic component enclosure and the conductive layer to connect electrically.

Abstract: A high performance conductive endless belt and an image forming apparatus using the same are provided, the conductive endless belt having superior strength, in particular, superior folding endurance, stable and appropriate electrical resistance even in high voltage application, less voltage dependence of electrical resistance, and superior durability in image output and transfer efficiency. The conductive endless belt is formed by adding a high molecular weight ionic conductive agent and a fluorinated surfactant to a base material selected from the group consisting of (a) a thermoplastic PA, (b) an ABS resin, (c) a thermoplastic POM, (d) a polymer alloy or a polymer blend containing at least two of the above (a) to (c), and (e) a polymer alloy or a polymer blend containing a thermoplastic resin and at least one of the above (a) to (c).

Abstract: A process for the preparation of 1,2-benzisoxazole-3-methanesulfonamide without isolation of intermediates in solid form, by using 4-hydroxycoumarin as a starting compound, and water and 1,2-dichloroethane as solvents; and an industrially useful process for the preparation of 1,2-benzisoxazole-3-acetic acid, by reacting 4-hydroxycoumarin and hydroxylamine in water.

Abstract: A process for the preparation of 1,2-benzisoxazole-3-methanesulfonamide without isolation of intermediates in solid form, by using 4-hydroxycoumarin as a starting compound, and water and 1,2-dichloroethane as solvents; and an industrially useful process for the preparation of 1,2-benzisoxazole-3-acetic acid, by reacting 4-hydroxycoumarin and hydroxylamine in water.

Abstract: A process for the preparation of 1,2-benzisoxazole-3-methanesulfonamide without isolation of intermediates in solid form, by using 4-hydroxycoumarin as a starting compound, and water and 1,2-dichloroethane as solvents; and an industrially useful process for the preparation of 1,2-benzisoxazole-3-acetic acid, by reacting 4-hydroxycoumarin and hydroxylamine in water.

Abstract: A high performance conductive endless belt and an image forming apparatus using the same are provided, the conductive endless belt having superior strength, in particular, superior folding endurance, stable and appropriate electrical resistance even in high voltage application, less voltage dependence of electrical resistance, and superior durability in image output and transfer efficiency. The conductive endless belt is formed by adding a high molecular weight ionic conductive agent and a fluorinated surfactant to a base material selected from the group consisting of (a) a thermoplastic PA, (b) an ABS resin, (c) a thermoplastic POM, (d) a polymer alloy or a polymer blend containing at least two of the above (a) to (c), and (e) a polymer alloy or a polymer blend containing a thermoplastic resin and at least one of the above (a) to (c).

Abstract: A process for the preparation of 1,2-benzisoxazole-3-methane-sulfonamide without isolation of intermediates in solid form, by using 4-hydroxycoumarin as a starting compound, and water and 1,2-dichloro-ethane as solvents; and an industrially useful process for the preparation of 1,2-benzisoxazole-3-acetic acid, by reacting 4-hydroxycoumarin and hydroxylamine in water.

Abstract: A process for the preparation of crystals of zonisamide containing residual 1,2-dichloroethane of not more than 5 ppm, by adding an aqueous C2-4 alcohol to crystals of zonisamide containing residual 1,2-dichloroethane of more than 5 ppm, removing the 1,2-dichloroethane by azeotropic distillation, followed by collecting the precipitated crystals from the residual mixture.

Abstract: A process for the preparation of crystals of zonisamide containing residual 1,2-dichloroethane of not more than 5 ppm, by adding an aqueous C2-4 alcohol to crystals of zonisamide containing residual 1,2-dichloroethane of more than 5 ppm, removing the 1,2-dichloroethane by azeotropic distillation, followed by collecting the precipitated crystals from the residual mixture.