The invention relates to a fuel tank comprising a tank body with an outer shell of a fibre-reinforced thermoplastic material comprising fibres embedded in a thermoplastic matrix, wherein an inner side of the outer shell is laminated with a multi-layered film of plastic, the outer shell being thicker than the multi-layer film of plastic and the multi-layer film of plastic comprising at least one barrier layer for hydrocarbons, wherein the fibres comprise at least one of glass fibres, carbon fibres and aramid fibres, wherein the fibre-reinforced material comprises at least one of woven or laid fibres embedded in the thermoplastic matrix

An opening device for a container includes a pouring spout defining a pouring opening to pour in use the content of the container, a closing element closing the pouring opening and connected to the pouring spout by breakable connector, and a closure fitted to the pouring spout in a removable manner to close the pouring opening at a region thereof different from that closed by the closing element; the closing element is formed in one piece with a protruding portion extending through the pouring opening and welded to the closure far away from the closing element.

A liquid vehicle tank (1) having a wall made of a plastic material, the tank (1) comprising a component (3, 5) affixed to the wall, the component (3, 5) having a portion (10) embedded in the wall, the embedded portion (10) having an external surface (21) a part of which is chemically incompatible with the plastic material of the wall, wherein the tank (1) also comprises a strengthening element welded to the wall over the embedded portion (10) of the component (3, 5).

The invention relates to a method for manufacturing a fuel tank on the basis of thermoplastic material, the method comprising the following method steps: producing semifinished products in sheet form from a fiber composite material with a matrix of thermoplastic material, laminating the semifinished products with a laminate that comprises at least one barrier layer for hydrocarbons, heat-treating the laminated semifinished products until the thermoplastic material plasticizes, thermoforming the plasticized semifinished products in a thermoforming mold to form shells and joining the shells to form an essentially closed tank.

There is described a sonotrode for sealing an opening device onto a hole of a packaging material destined to from a sealed package, comprising: a sealing surface adapted to cooperate with packaging material in order to seal the opening device to the packaging material; a cavity bounded by an opening of sealing surface and adapted to receive the opening device and a ring made in an elastomeric material, partially protruding inside the cavity, and adapted to center a first axis of the opening device on a second axis of the sonotrode.

There is described a sonotrode for sealing an opening device onto a hole of a packaging material destined to from a sealed package, comprising: a sealing surface adapted to cooperate with a said packaging material in order to seal the opening device to the packaging material; a cavity bounded by an opening of sealing surface and adapted to receive the opening device; and a ring made in an elastomeric material, partially protruding inside the cavity, and adapted to center a first axis of the opening device on a second axis of the sonotrode.

A vent structure includes: a first housing component having an opening portion for ventilation; a gas-permeable membrane that is attached to the first housing component to close the opening portion; and a laser welding portion that joins the first housing component with the gas-permeable membrane. The gas-permeable membrane includes a main body including a fluororesin film and a porous resin sheet that is laid on the main body. The porous resin sheet is located on the surface side of the vent structure. Both of the main body and the outer peripheral portion of the porous resin sheet that projects outwardly from the main body are fixed to the first housing component by the laser welding portion.

A fuel tank having a wall with an opening, the wall having a fuel impermeable layer, the fuel tank comprising a component welded to the wall around the opening, the component having a fuel impermeable layer, wherein the fuel tank comprises a fuel impermeable insert, at least partially embedded in the wall around the opening and arranged in between the two fuel impermeable layers.