Abstract: The present invention provides a resin composition for molding that can provide a molded body having excellent heat resistance and excellent mechanical properties as well as high surface smoothness. The present invention also provides a molded body and a pipe each including the resin composition for molding. Provided is a resin composition for molding containing: a chlorinated polyvinyl chloride; a thermal stabilizer; and an impact resistance modifier, the chlorinated polyvinyl chloride having a chlorine content of 63 to 72% by mass, the thermal stabilizer containing a calcium-containing compound and a zinc-containing compound, the resin composition containing the thermal stabilizer in an amount of 0.4 to 10.0 parts by mass and the impact resistance modifier in an amount of 1.0 to 10.0 parts by mass relative to 100 parts by mass of the chlorinated polyvinyl chloride.

Abstract: The present invention provides a resin composition for molding that can provide a molded body having excellent thermal stability, high impact resistance, and high surface smoothness. The present invention also provides a molded body including the resin composition for molding. Provided is a resin composition for molding including: a chlorinated polyvinyl chloride; an acrylic processing aid; and an impact resistance modifier, the acrylic processing aid containing an acrylic resin having a weight average molecular weight of 500,000 to 5,000,000, the resin composition containing the acrylic processing aid in an amount of 0.2 to 10 parts by mass and the impact resistance modifier in an amount of 0.5 to 8.0 parts by mass relative to 100 parts by mass of the chlorinated polyvinyl chloride.

Abstract: The present invention provides a resin composition for molding, including a chlorinated polyvinyl chloride and a thermal stabilizer, the chlorinated polyvinyl chloride having structural units (a) to (c) represented by formulae (a) to (c) shown below: —CCl2—??(a), —CHCl—??(b), —CH2—??(c), the proportion of the structural unit (a) being 17.5 mol % or less, the proportion of the structural unit (b) being 46.0 mol % or more, and the proportion of the structural unit (c) being 37.0 mol % or less, relative to the total number of moles of the structural units (a), (b), and (c), the chlorinated polyvinyl chloride having a chlorine content of 63 mass % or more and less than 72 mass %, the thermal stabilizer containing a calcium alkyl carboxylate and a zinc compound, and the resin composition for molding having a loss in quantity on heating at 230° C. of less than 2 mass %.

Abstract: The present invention aims to provide a chlorinated vinyl chloride-based resin composition with excellent thermal stability and a molded body thereof. The present invention relates to a resin composition for molding, including a chlorinated vinyl chloride-based resin, a thermal stabilizer, and a polyalcohol and/or a partial ester of a polyalcohol. The chlorinated vinyl chloride-based resin has a chlorine content of 65% by weight or more and less than 72% by weight. The chlorinated vinyl chloride-based resin has, based on the total number of moles of a structural unit (a) —CCl2—, a structural unit (b) —CHCl—, and a structural unit (c) —CH2—, a proportion of the structural unit (a) of 17.5 mol % or less, a proportion of the structural unit (b) of 46.0 mol % or more, and a proportion of the structural unit (c) of 37.0 mol % or less.

Abstract: The present invention aims to provide a chlorinated vinyl chloride-based resin composition with excellent thermal stability and a molded body thereof. The present invention relates to a resin composition for molding, including a chlorinated vinyl chloride-based resin, a thermal stabilizer, and a polyalcohol and/or a partial ester of a polyalcohol. The chlorinated vinyl chloride-based resin has a chlorine content of 65% by weight or more and less than 72% by weight. The chlorinated vinyl chloride-based resin has, based on the total number of moles of a structural unit (a) —CCl2—, a structural unit (b) —CHCl—, and a structural unit (c) —CH2—, a proportion of the structural unit (a) of 17.5 mol % or less, a proportion of the structural unit (b) of 46.0 mol % or more, and a proportion of the structural unit (c) of 37.0 mol % or less.

Abstract: The present invention provides a resin composition for molding that allows production of a molded body having excellent thermal stability as well as high flexibility and strength, without using heavy metals such as lead and tin, and also provides a molded body obtained using the resin composition for molding. The present invention provides a resin composition for molding, including a chlorinated polyvinyl chloride and a thermal stabilizer, the chlorinated polyvinyl chloride having structural units (a) to (c) represented by formulae (a) to (c) shown below: —CCl2—??(a), —CHCl—??(b), —CH2—??(c), the proportion of the structural unit (a) being 17.5 mol % or less, the proportion of the structural unit (b) being 46.0 mol % or more, and the proportion of the structural unit (c) being 37.

Abstract: The present invention aims to provide a chlorinated vinyl chloride-based resin composition with excellent thermal stability and a molded body thereof. The present invention relates to a resin composition for molding, including a chlorinated vinyl chloride-based resin, a thermal stabilizer, and a polyalcohol and/or a partial ester of a polyalcohol. The chlorinated vinyl chloride-based resin has a chlorine content of 65% by weight or more and less than 72% by weight. The chlorinated vinyl chloride-based resin has, based on the total number of moles of a structural unit (a) —CCl2—, a structural unit (b) —CHCl—, and a structural unit (c) —CH2—, a proportion of the structural unit (a) of 17.5 mol % or less, a proportion of the structural unit (b) of 46.0 mol % or more, and a proportion of the structural unit (c) of 37.0 mol % or less.

Abstract: The present invention aims to provide a chlorinated vinyl chloride-based resin composition with excellent thermal stability and a molded body thereof. The present invention relates to a resin composition for molding, including a chlorinated vinyl chloride-based resin, a thermal stabilizer, and a polyalcohol and/or a partial ester of a polyalcohol. The chlorinated vinyl chloride-based resin has a chlorine content of 65% by weight or more and less than 72% by weight. The chlorinated vinyl chloride-based resin has, based on the total number of moles of a structural unit (a) —CCl2—, a structural unit (b) —CHCl—, and a structural unit (c) —CH2—, a proportion of the structural unit (a) of 17.5 mol % or less, a proportion of the structural unit (b) of 46.0 mol % or more, and a proportion of the structural unit (c) of 37.0 mol % or less.

Abstract: The present invention aims to provide a chlorinated vinyl chloride-based resin composition with excellent thermal stability and a molded body thereof. The present invention relates to a resin composition for molding, including a chlorinated vinyl chloride-based resin, a thermal stabilizer, and a polyalcohol and/or a partial ester of a polyalcohol. The chlorinated vinyl chloride-based resin has a chlorine content of 65% by weight or more and less than 72% by weight. The chlorinated vinyl chloride-based resin has, based on the total number of moles of a structural unit (a) —CCl2—, a structural unit (b) —CHCl—, and a structural unit (c) —CH2—, a proportion of the structural unit (a) of 17.5 mol % or less, a proportion of the structural unit (b) of 46.0 mol % or more, and a proportion of the structural unit (c) of 37.0 mol % or less.

Abstract: The present invention aims to provide a chlorinated vinyl chloride-based resin composition with excellent thermal stability and a molded body thereof. The present invention relates to a resin composition for molding, including a chlorinated vinyl chloride-based resin, a thermal stabilizer, and a polyalcohol and/or a partial ester of a polyalcohol. The chlorinated vinyl chloride-based resin has a chlorine content of 65% by weight or more and less than 72% by weight. The chlorinated vinyl chloride-based resin has, based on the total number of moles of a structural unit (a) —CCl2—, a structural unit (b) ?CHCl—, and a structural unit (c) —CH2—, a proportion of the structural unit (a) of 17.5 mol % or less, a proportion of the structural unit (b) of 46.0 mol % or more, and a proportion of the structural unit (c) of 37.0 mol % or less.

Abstract: The present invention provides a method for producing a chlorinated polyvinyl chloride which is excellent in thermal stability (initial discoloration resistance, heat-resistant stability) and is capable of providing a transparent article. The present invention relates to a method for producing a chlorinated polyvinyl chloride through thermal chlorination of a reaction solution including a vinyl chloride aqueous suspension that contains a vinyl chloride resin in a hermetically sealable reaction vessel, the method including: step 1 of initiating thermal chlorination by heating the reaction solution to 55° C. to 70° C. and then introducing chlorine into the reaction vessel; step 2 of raising the temperature of the reaction solution while maintaining the temperature inside the reaction vessel not higher than the glass transition temperature of a partially chlorinated polyvinyl chloride; and step 3 of carrying out the thermal chlorination at a predetermined temperature of 85° C. or higher but lower than 115° C.

Abstract: The present invention provides a thermally expandable microcapsule that has a high expansion ratio and durability at high temperatures, and is not likely to cause discoloration and odor when used for foam molding. The thermally expandable microcapsule of the present invention includes: a shell formed from a polymer; and a volatile expansion agent as a core agent encapsulated by the shell, the shell obtained by polymerizing a monomer composition that contains a nitrile monomer and a compound having a glycidyl group in a molecule, the shell exhibiting a value y of 50% or higher and a ratio y/x of 1.1 or higher, in which x represents a gel fraction at ordinary temperature, and y represents a gel fraction upon heating at 180° C. for 30 minutes.

Abstract: The present invention aims to provide a chlorinated vinyl chloride-based resin composition with excellent thermal stability and a molded body thereof. The present invention relates to a resin composition for molding, including a chlorinated vinyl chloride-based resin, a thermal stabilizer, and a polyalcohol and/or a partial ester of a polyalcohol. The chlorinated vinyl chloride-based resin has a chlorine content of 65% by weight or more and less than 72% by weight. The chlorinated vinyl chloride-based resin has, based on the total number of moles of a structural unit (a) —CCl2—, a structural unit (b) —CHCl—, and a structural unit (c) —CH2—, a proportion of the structural unit (a) of 17.5 mol % or less, a proportion of the structural unit (b) of 46.0 mol % or more, and a proportion of the structural unit (c) of 37.0 mol % or less.

Abstract: The present invention aims to provide a chlorinated vinyl chloride-based resin composition with excellent thermal stability and a molded body thereof. The present invention relates to a resin composition for molding, including a chlorinated vinyl chloride-based resin, a thermal stabilizer, and a polyalcohol and/or a partial ester of a polyalcohol. The chlorinated vinyl chloride-based resin has a chlorine content of 65% by weight or more and less than 72% by weight. The chlorinated vinyl chloride-based resin has, based on the total number of moles of a structural unit (a) —CCl2—, a structural unit (b) —CHCl—, and a structural unit (c) —CH2—, a proportion of the structural unit (a) of 17.5 mol % or less, a proportion of the structural unit (b) of 46.0 mol % or more, and a proportion of the structural unit (c) of 37.0 mol % or less.

Abstract: The present invention provides a thermally expandable microcapsule that has a high expansion ratio and durability at high temperatures, and is not likely to cause discoloration and odor when used for foam molding. The thermally expandable microcapsule of the present invention includes: a shell formed from a polymer; and a volatile expansion agent as a core agent encapsulated by the shell, the shell obtained by polymerizing a monomer composition that contains a nitrile monomer and a compound having a glycidyl group in a molecule, the shell exhibiting a value y of 50% or higher and a ratio y/x of 1.1 or higher, in which x represents a gel fraction at ordinary temperature, and y represents a gel fraction upon heating at 180° C. for 30 minutes.

Abstract: Chlorinated vinyl chloride resin may be produced through a heat chlorination reaction of an aqueous suspension of vinyl chloride resin in a hermetically sealable reaction vessel, the method including carrying out a first heat chlorination reaction while raising the temperature of an aqueous suspension of a vinyl chloride resin powder to a predetermined temperature within the range of 85° C. to 95° C., and subsequently carrying out a second heat chlorination reaction at the predetermined temperature.

Abstract: A thermally expandable multilayer packing for building material, having protruding parts and a body portion in the cross-sectional shape based a plane perpendicular to the longitudinal direction. The thermally expandable multilayer packing includes both a thermally expandable resin composition layer and a thermoplastic resin composition layer, wherein the thermally expandable resin composition forming the thermally expandable resin composition layer contains 100 parts by weight of a resin component containing a chlorinated polyvinyl chloride resin and/or an EPDM, 3 to 300 parts by weight of a thermally expandable graphite, 3 to 200 parts by weight of an inorganic filler and 20 to 200 parts by weight of a plasticizer. The thermally expandable resin composition layer and the thermoplastic resin composition layer are formed by simultaneous co-extrusion using the thermally expandable resin composition and the thermoplastic resin composition.

Abstract: A chlorinated vinyl chloride resin composition for extrusion molding, characterized by: containing 100 parts by weight of a chlorinated vinyl chloride resin, 3 to 300 parts by weight of a thermally expandable graphite, 3 to 200 parts by weight of an inorganic filler and 20 to 200 parts by weight of a plasticizer; and containing no phosphorus compound (excluding phosphate plasticizer). A chlorinated vinyl chloride resin having a chlorine content of 60 to 72% by weight can be used as the resin component for extrusion molding.

Abstract: An object of the present invention is to provide a chlorinated vinyl chloride-based resin with few unstable structures and excellent thermal stability, and a molding article. The chlorinated vinyl chloride-based resin of the invention is an resin in which a chlorine content is 65 wt % or higher, and less than 69 wt %, —CCl2— is in an amount of 6.2 mol % or less, —CHCl— is in an amount of 58.0 mol % or higher, and —CH2— is in an amount of 35.8 mol % or less contained in a molecular structure.

Abstract: Hollow polymer particles are provided to have an average particle diameter of 15 ?m or more and 500 ?m or less and a 10%-compressive strength of 1.5 MPa or more, and the hollow polymer particle includes a hollow portion in the interior. In addition, a porous ceramic filter is provided by firing a shaped material composed of a mixture in which the above-described hollow polymer particles are mixed to disperse in a ceramic composition.