Methods of forming an article from a molten plastic composition comprising a polymer and a blowing agent. The methods include injecting the molten plastic composition into a mould, allowing the plastic composition to form a first solid skin adjacent to an in contact with a first cavity-forming surface of the mould and a second solid skin adjacent to and in contact with a second cavity-forming surface of the mould, and then opening the mould before the molten plastic composition between the first and second solid skins in at least one portion of the circumference of a region of the mould cavity defining an annular cross-section of the cavity has solidified.

In a soundproof member 10 including a polyurethane foam 11 and disposed apart from an engine E on a vehicle interior side of a dash panel 50 partitioning a space into an engine room having the engine E as a sound source and a vehicle interior, the polyurethane foam 11 has a surface layer 12 on at least a part of the surface thereof, a one side surface of the polyurethane foam 11 directly facing the vehicle interior side of the dash panel 50 has at least a surface layer 12A in an open cell state or a core, and a surface layer 12B of the other side surface opposite to the one side surface is a surface layer in a closed cell state.

In a soundproof member 10 including a polyurethane foam 11 and disposed apart from an engine E on a vehicle interior side of a dash panel 50 partitioning a space into an engine room having the engine E as a sound source and a vehicle interior, the polyurethane foam 11 has a surface layer 12 on at least a part of the surface thereof, a one side surface of the polyurethane foam 11 directly facing the vehicle interior side of the dash panel 50 has at least a surface layer 12A in an open cell state or a core, and a surface layer 12B of the other side surface opposite to the one side surface is a surface layer in a closed cell state.

The present invention relates to a refrigerator foaming jig, and particularly, to a refrigerator foaming jig and a foaming method using same, the refrigerator foaming jig including: a refrigerator outer case in which a space part, into which a heat insulating material is injected, and a refrigerating compartment, and a freezer compartment are formed; and an ice-making compartment case which is installed inside the outer case and inside which an insulating material accommodation space communicating with the space part is formed. The refrigerator foaming jig comprises: a front jig coupled to an inner case; and a variable jig inserted into the partition part, wherein the variable jig expands toward the space part and the insulating material accommodation space or contracts inward so that the distance to the partition part is adjusted. According to the above configuration, the refrigerating compartment, the freezing compartment, and the ice-making compartment are simultaneously formed as independent spaces.

The present invention relates to a refrigerator foaming jig, and particularly, to a refrigerator foaming jig and a foaming method using same, the refrigerator foaming jig including: a refrigerator outer case in which a space part, into which a heat insulating material is injected, and a refrigerating compartment, and a freezer compartment are formed; and an ice-making compartment case which is installed inside the outer case and inside which an insulating material accommodation space communicating with the space part is formed. The refrigerator foaming jig comprises: a front jig coupled to an inner case; and a variable jig inserted into the partition part, wherein the variable jig expands toward the space part and the insulating material accommodation space or contracts inward so that the distance to the partition part is adjusted. According to the above configuration, the refrigerating compartment, the freezing compartment, and the ice-making compartment are simultaneously formed as independent spaces.

A method of forming foam includes providing a foam with at least one of chitosan, chitin, or chitosan oligosaccharide, where the foam has a density of 1 g/cm.sup.3 or less. The method further includes placing the foam between tooling, applying heat to the foam, and pressing the foam into a shape using the tooling.

A method of forming foam includes providing a foam with at least one of chitosan, chitin, or chitosan oligosaccharide, where the foam has a density of 1 g/cm.sup.3 or less. The method further includes placing the foam between tooling, applying heat to the foam, and pressing the foam into a shape using the tooling.

A molding device and an injection molding method thereof are provided. The molding device includes a first mold, a second mold and a sealing ring. The first mold includes a first body and at least one slide. The at least one slide is movably and detachably disposed on the first body, and has an undercut. The injection molding method includes operations of: engaging the first mold with the second mold of the molding device; filling a mold cavity defined by the first mold and the second mold with a gas, wherein the gas is blocked by the sealing ring disposed between the first mold and the second mold; injecting a molding material into the mold cavity; and opening the first mold and the second mold of the molding device.

A molding device and an injection molding method thereof are provided. The molding device includes a first mold, a second mold and a sealing ring. The first mold includes a first body and at least one slide. The at least one slide is movably and detachably disposed on the first body, and has an undercut. The injection molding method includes operations of: engaging the first mold with the second mold of the molding device; filling a mold cavity defined by the first mold and the second mold with a gas, wherein the gas is blocked by the sealing ring disposed between the first mold and the second mold; injecting a molding material into the mold cavity; and opening the first mold and the second mold of the molding device.

Expandable, blowing agent-containing pellets based on high temperature thermoplastics having a glass transition temperature according to ISO 11357-2-1999 of at least 180° C., wherein the expandable, blowing agent-containing pellets comprise at least one nucleating agent and have a poured density according to DIN ISO 697:1982 in the range from 400 to 900 kg/m.sup.3 and a mass in the range from 1 to 5 mg/pellet, processes for production thereof and foam particles obtainable therefrom having a glass transition temperature according to ISO 11357-2-1999 of at least 180° C., wherein the expanded foam particles comprise at least one nucleating agent and have a poured density according to DIN ISO 697:1982 in the range from 10 to 200 kg/m.sup.3, and particle foams obtainable therefrom and the use thereof for producing components for aviation.