Abstract: A method of manufacturing a resin composition includes a step of chemically crosslinking an ionomer (A) of an ethylene-unsaturated carboxylic acid copolymer in the presence of an organic peroxide (B), and a step of melt kneading the chemically crosslinked ionomer (A) and a polyamide resin (C).

Abstract: A resin composition includes: a polyamide resin (A); an ionomer of an ethylene-unsaturated carboxylic acid-based copolymer (B); and an ethylene-based polymer (C), wherein a content of the polyamide resin (A) is 50% by mass or more with respect to a total amount of the polyamide resin (A), the ionomer of an ethylene-unsaturated carboxylic acid-based copolymer (B) and the ethylene-based polymer (C), and wherein a content of the ethylene-based copolymer (C) is less than 50% by mass with respect to a total amount of the ionomer of an ethylene-unsaturated carboxylic acid-based copolymer (B) and the ethylene-based polymer (C).

Abstract: A resin container (100) includes: a hollow molded body (10) which has a mouth-neck portion (20) and a tubular main body portion (12) with a bottom and is made of a first resin material such as polyolefin; and a resin sheathing body (30) which is made of a second resin material such as polyester and in which the main body portion (12) is buried in an unfixed manner. A frost-treated portion (122) subjected to a frost treatment is formed on at least a part of the main body portion (12).

Abstract: A resin molding apparatus of a simplified structure is provided that offers high handling efficiency by a work robot, thereby improving a throughput. The resin molding apparatus (200) that retains a hollow molded body (10) including a closed-bottom cylindrical main body (12) and a cylindrical open neck portion (20), the open neck portion (20) including a helical ridge portion (22) formed on an outer circumferential surface thereof and divided into a plurality of helical segments by a slit (24) extending in an axial direction of the open neck portion (20), and that overmolds a resin sheathing body (30) on an outer surface of the main body (12), includes a first recess in which the open neck portion (20) is to be fitted, and a rib (216) formed on a circumferential surface of the recess so as to extend in a depthwise direction thereof, and to be engaged with the slit (24).

Abstract: A synthetic resin hollow body (A) that has a satisfactory decorating property and a satisfactory recycle property in a disposal and that is hardly damaged. In addition, a product cost and an operation cost thereof can be suppressed. The synthetic resin hollow body (A) includes: a hollow molding body (a) made of a resin, the hollow molding body (a) capable of holding a liquid material; and a resin sheathing body formed outside the hollow molding body (a) in an integrating manner with the hollow molding body (a), wherein the resin sheathing body is made of a highly transparent synthetic resin having a total ray transmittance of at least 80%.

Abstract: A synthetic resin hollow body which includes a hollow molding body made of a resin, the hollow molding body capable of holding a liquid material, and a resin sheathing body formed outside the hollow molding body in an integrating manner with the hollow molding body, wherein the resin sheathing body is made of a highly transparent synthetic resin having a total ray transmittance of at least 80%. The synthetic resin hollow body can exhibit a satisfactory decorating property and a satisfactory recycle property and is hardly damaged. In addition, the product cost and operation cost can be suppressed.

Abstract: A synthetic resin hollow body (A) that has a satisfactory decorating property and a satisfactory recycle property in a disposal and that is hardly damaged. In addition, a product cost and an operation cost thereof can be suppressed. The synthetic resin hollow body (A) includes: a hollow molding body (a) made of a resin, the hollow molding body (a) capable of holding a liquid material; and a resin sheathing body formed outside the hollow molding body (a) in an integrating manner with the hollow molding body (a), wherein the resin sheathing body is made of a highly transparent synthetic resin having a total ray transmittance of at least 80%.

Abstract: The resin molding apparatus (200) is capable of rotatably support, around an axis of a neck portion (2), a hollow molded product having a main body having a form of a container and the cylindrical neck portion (2). A pinched portion (4), which is pinched by neck portion pinching parts (13, 14) of metallic mold members (11, 12) of the apparatus (200), is formed around the neck portion (2). An outer profile of the pinched portion (4) around the axis of the neck portion (2) is a non-circular profile. An integrated inner profile of the mated neck portion pinching parts (13, 14) is a profile along an outer profile of the pinched portion (4). When the neck portion pinching parts (13, 14) pinch the pinched portion (4), the neck portion pinching parts (13, 14) push the pinched portion (4) to rotate the hollow molded product, thereby correcting the rotation angle around the axis.

Abstract: A manufacturing method of a synthetic resin hollow body in which a molten resin is injected for an over-molding outside a hollow molding body made of a resin provided with a hollow body and at least an opening portion to form a resin sheathing body in an integrating manner with the hollow molding body. The method includes the step of injecting the molten resin for an over-molding under the state in which the hollow molding body is partially or wholly filled with a fluid substance. The manufacturing method of a synthetic resin hollow body is capable of suppressing resin cost and operation cost and can improve decorating property.

Abstract: A manufacturing method of a synthetic resin hollow body in which a molten resin is injected for an over-molding outside a hollow molding body made of a resin provided with a hollow body and at least an opening portion to form a resin sheathing body in an integrating manner with the hollow molding body. The method includes the step of injecting the molten resin for an over-molding under the state in which the hollow molding body is partially or wholly filled with a fluid substance. The manufacturing method of a synthetic resin hollow body is capable of suppressing resin cost and operation cost and can improve decorating property.

Abstract: A resin molding apparatus of a simplified structure is provided that offers high handling efficiency by a work robot, thereby improving a throughput. The resin molding apparatus (200) that retains a hollow molded body (10) including a closed-bottom cylindrical main body (12) and a cylindrical open neck portion (20), the open neck portion (20) including a helical ridge portion (22) formed on an outer circumferential surface thereof and divided into a plurality of helical segments by a slit (24) extending in an axial direction of the open neck portion (20), and that overmolds a resin sheathing body (30) on an outer surface of the main body (12), includes a first recess in which the open neck portion (20) is to be fitted, and a rib (216) formed on a circumferential surface of the recess so as to extend in a depthwise direction thereof, and to be engaged with the slit (24).

Abstract: [Problem] It is an object to provide a composite container in which a shape and a profile of a resin hollow molding body can be discriminated with clarity in the case in which a visual contact is carried out to the inside resin hollow molding body via an outside transparent resin sheathing body, whereby a design property can be displayed to a satisfactory extent, and in which a design property can be displayed to a satisfactory extent even by a combination of the resin hollow molding body and the outside transparent resin sheathing body.

Abstract: A manufacturing method of a synthetic resin hollow body in which a molten resin is injected for an over-molding outside a hollow molding body made of a resin provided with a hollow body and at least an opening portion to form a resin sheathing body in an integrating manner with the hollow molding body. The method includes the step of injecting the molten resin for an over-molding under the state in which the hollow molding body is partially or wholly filled with a fluid substance. The manufacturing method of a synthetic resin hollow body is capable of suppressing resin cost and operation cost and can improve decorating property.

Abstract: A synthetic resin hollow body which includes a hollow molding body made of a resin, the hollow molding body capable of holding a liquid material, and a resin sheathing body formed outside the hollow molding body in an integrating manner with the hollow molding body, wherein the resin sheathing body is made of a highly transparent synthetic resin having a total ray transmittance of at least 80%. The synthetic resin hollow body can exhibit a satisfactory decorating property and a satisfactory recycle property and is hardly damaged. In addition, the product cost and operation cost can be suppressed.