A method for producing a molded part, in particular a component of a sporting good, includes providing a mixture of a polymer melt and a foaming agent and injecting the mixture into a mold. The method includes solidifying at least a first portion of the molded part without foaming and at least a second portion of the molded part after foaming inside the mold, wherein the mixture includes a polymer having an average molecular mass corresponding to a viscosity number 130 ml/g, preferably 170 ml/g, more preferably 190 ml/g and most preferably 225 ml/g, wherein the viscosity number is determined via solution viscometry according to the ISO 307 standard.

The present invention relates to new implants, especially breast implants, which are bio-durable, biocompatible, which provide a soft tissue feel, and having a reduced density. Said implants comprise a shell and a filling enclosed by the shell, wherein the filling comprises a silicone foam obtained from a blowable crosslinkable silicone composition comprising an organopolysiloxane having at least two alkenyl groups bonded to silicon per molecule, an organosilicon compound having at least two and preferably at least three hydrogen atoms bonded to silicon per molecule, a hydrosilylation catalyst, at least one porogenic agent which is water, hydrogel, or an aqueous silicone emulsion, at least one chemical blowing agent, and a linear polydimethylsiloxane.

A nonwoven fabric used for a foamed article reinforcing material to be bonded to a foamed material to reinforce the foamed article is a single-layer material in which stacked layers of a web are bonded together, has a thickness of 1 to 8 mm under a load of 7 g/cm.sup.2, and has a delamination strength of 0.05 to 2.45 N/cm. The delamination strength is a value of the pulling force required to peel the bonded layers of the web apart.

A urethane foam molded body includes a base material composed of polyurethane foam, a composite particle oriented and contained in the base material, and a first insulating inorganic particle dispersed in the base material. The composite particle includes a thermally conductive particle, and a magnetic particle adhered to a surface of the thermally conductive particle by a binder. The thermally conductive particle includes an expanded graphite particle, and an amount of an alkali metal ion contained in the expanded graphite particle is 500 ppm or higher and 2,000 ppm or lower.

A molded foam manufacturing apparatus 1 includes a cylinder 2 in which a plasticization zone 21 where a thermoplastic resin is plasticized and melted, a starvation zone 22 where the molten resin is put into a starvation state and an injected physical foaming agent is dissolved in the molten resin, and a feeding zone 23 where the molten resin in which the physical foaming agent is dissolved is compressed and metered are provided in this order from an upstream side, and a screw 3 that is installed inside the cylinder 2 so as to be freely rotatable around an axis of the cylinder and has flights formed in a spiral shape on an outer circumference of a shaft 31, wherein a lead angle R of the flights of the screw 3 corresponding to the feeding zone 23 is set smaller than a lead angle of the flight corresponding to the starvation zone 22, and the number of pieces of the flight of the screw 3 corresponding to the feeding zone 23 is set smaller than the number of pieces of the flight corresponding to the starvation zone 22. In this way, it is possible to prevent a decrease in the flow rate of the molten resin transported in the starvation zone and the feeding sone and manufacture high-quality molded foams with high production efficiency.

A molded foam manufacturing apparatus 1 includes a cylinder 2 in which a plasticization zone 21 where a thermoplastic resin is plasticized and melted, a starvation zone 22 where the molten resin is put into a starvation state and an injected physical foaming agent is dissolved in the molten resin, and a feeding zone 23 where the molten resin in which the physical foaming agent is dissolved is compressed and metered are provided in this order from an upstream side, and a screw 3 that is installed inside the cylinder 2 so as to be freely rotatable around an axis of the cylinder and has flights formed in a spiral shape on an outer circumference of a shaft 31, wherein a lead angle R of the flights of the screw 3 corresponding to the feeding zone 23 is set smaller than a lead angle of the flight corresponding to the starvation zone 22, and the number of pieces of the flight of the screw 3 corresponding to the feeding zone 23 is set smaller than the number of pieces of the flight corresponding to the starvation zone 22. In this way, it is possible to prevent a decrease in the flow rate of the molten resin transported in the starvation zone and the feeding sone and manufacture high-quality molded foams with high production efficiency.