Provided is a vinyl chloride resin composition that is capable of forming a vinyl chloride resin molded product having excellent low-temperature tensile elongation. The vinyl chloride resin composition contains mixed material particles containing a vinyl chloride resin, a plasticizer, and an inorganic substance. When the concentration of the inorganic substance in an inner part of the mixed material particles is taken to be C1 and the concentration of the inorganic substance in an outer layer of the mixed material particles is taken to be C2, a ratio C1/C2 of C1 and C2 is 0.7 or more.

A vinyl chloride resin composition excellent in high-temperature powder fluidity is provided. The vinyl chloride resin composition includes a vinyl chloride resin and a plasticizer, and satisfies at least one of: (1) a tetrahydrofuran-insoluble content ratio being 10 mass % or more; and (2) a ratio between the tetrahydrofuran-insoluble content ratio and a content ratio of the plasticizer (tetrahydrofuran-insoluble content ratio/plasticizer content ratio) being 0.20 or more.

A vinyl chloride resin composition excellent in high-temperature powder fluidity is provided. The vinyl chloride resin composition includes a vinyl chloride resin and a plasticizer, and satisfies at least one of: (1) a tetrahydrofuran-insoluble content ratio being 10 mass % or more; and (2) a ratio between the tetrahydrofuran-insoluble content ratio and a content ratio of the plasticizer (tetrahydrofuran-insoluble content ratio/plasticizer content ratio) being 0.20 or more.

A rotomolding tool having a textured surface is provided. The tool comprises a shell having a body portion and an upper mold surface having a grain texture, at least the body portion comprising a nickel-iron alloy having a coefficient of thermal expansion of at most 5.O10.sup.6 in/in/ F. at temperatures between 100 and 500 F.

A rotomolding tool having a textured surface is provided. The tool comprises a shell having a body portion and an upper mold surface having a grain texture, at least the body portion comprising a nickel-iron alloy having a coefficient of thermal expansion of at most 5.O10.sup.6 in/in/ F. at temperatures between 100 and 500 F.

A process for producing moldings from a powder based on thermoplastic elastomers, wherein the powder is placed on a mold or in a mold and by means of electromagnetic radiation is heated to an extent such that the powder undergoes at least partial melting and thus fuses to afford the molding and the frequency of the electromagnetic radiation is between 0.01 GHz and 300 GHz.

A process for producing moldings from a powder based on thermoplastic elastomers, wherein the powder is placed on a mold or in a mold and by means of electromagnetic radiation is heated to an extent such that the powder undergoes at least partial melting and thus fuses to afford the molding and the frequency of the electromagnetic radiation is between 0.01 GHz and 300 GHz.

A vinyl chloride resin composition with which an increase in surface gloss can be suppressed even in the case of repeating the molding of a vinyl chloride resin molded product using the same mold and also favorable tensile elongation and low surface stickiness can be ensured is provided. A vinyl chloride resin composition comprises: a vinyl chloride resin; a plasticizer; and a silicone oil, wherein a content of the plasticizer relative to 100 parts by mass of the vinyl chloride resin is 80 parts by mass or more, a content of the silicone oil relative to 100 parts by mass of the plasticizer is 0.01 parts by mass or more, and a predetermined weight reduction rate of the silicone oil is 7.0 mass % or less.

A vinyl chloride resin composition with which an increase in surface gloss can be suppressed even in the case of repeating the molding of a vinyl chloride resin molded product using the same mold and also favorable tensile elongation and low surface stickiness can be ensured is provided. A vinyl chloride resin composition comprises: a vinyl chloride resin; a plasticizer; and a silicone oil, wherein a content of the plasticizer relative to 100 parts by mass of the vinyl chloride resin is 80 parts by mass or more, a content of the silicone oil relative to 100 parts by mass of the plasticizer is 0.01 parts by mass or more, and a predetermined weight reduction rate of the silicone oil is 7.0 mass % or less.

Disclosed is a powder slush molding system that molds a slush skin by melting and adhering a powder resin material to an inner surface of a mold that is heated. The powder slush molding system includes a heating device, a rocking device, a cooling device, a demolding device, and a transfer device configured to transfer the mold between these devices. The cooling device includes a cooling bath and a table configured to turn upside down vertically above the cooling bath. The mold fixedly placed on an upper surface of the table faces the cooling bath side when the table is turned upside down. The table is configured to allow the mold to be placed also on a back surface of the table. The back surface faces upward when the table is turned upside down.