A liner structure includes a liner main body and an insert located inside an opening of the liner main body. The liner main body is made of a polybutylene material. The liner structure has relatively good heat resistance within a temperature range corresponding to conventional liquid water, and can be used for containing hot water. Moreover, a feasible manufacturing method is provided. The method can overcome defects of material characteristics through process optimization, so that can implement manufacturing the liner structure.

Disclosed is a method for producing at least one molded, filled and sealed container product (10) comprising at least the method steps listed below: extruding a hose (32) by means of an extrusion device (12) using supporting gas in vertical extrusion direction in a preforming position; sealing the hose (32) at its lower end and cutting it at its upper open end; transporting of the parison (22) thus cut to length by means of a gripper device (20) in linear transport direction transverse to the extrusion direction from the preforming position into an opened molding tool (18); transferring the parison (22) into the opened molding tool (18) by means of the gripper device (20) in a main forming position; sealing the molding tool (18) for further forming of the parison (22) by a pressure gradient; filling and sealing the parison (22); and returning the gripper device (20) to the preforming position for a repeated sequence of the above method steps

The present disclosure provides a container and a process for producing the container. In an embodiment, the process includes placing a sleeve bag on valve assembly (SBoV) in a blow mold apparatus. The blow mold apparatus has two opposing and movable molds. The SBoV has a valve seat. The process includes extending a parison of flowable polymeric material around the SBoV and between the opposing molds. The process includes moving the opposing molds to a closed position and pressing an upstream portion of the parison against the valve seat. The process includes blow molding a downstream portion of the parison into a container-shape within the closed mold. The process includes forming a container with the valve seat melt bonded to a neck portion of the container.

The present embodiments provide an apparatus for producing a pressure vessel blank, comprising at least one connection element, a multi-part blow-moulding tool, and at least one blowing pin. The present embodiments further provide a pressure vessel comprising at least one connection element, a pressure vessel blank, and a supporting shell connected to and supporting the pressure vessel blank. An aspect of the present embodiments provides a process for producing a pressure vessel blank using an apparatus comprising at least one connection element that enables a shortened time for producing a pressure vessel blank with increased stability under pressure.

A pressure vessel including: a cylindrical straight body section and dome sections provided at both ends of the body section, where: the body section and the dome sections are composed of a resin main body, and an outer shell made of a fiber reinforced resin material, the outer shell being on the outside of the main body; each of dome sections has pinch-off regions extending from a tip of the dome section toward the body section; and when an end of each of the pinch-off regions opposite to the tip of the dome section is located in a region where a distance from the tip of the dome section to the end of each of the pinch-off regions opposite to the tip of the dome section in the axial direction of the straight body section is less than a distance from the tip of each of the dome sections to a boundary between the straight body section of the main body and each of the dome sections in the axial direction of the straight body section.

The present embodiments provide an apparatus for producing a pressure vessel blank, comprising at least one connection element, a multi-part blow-moulding tool, and at least one blowing pin. The present embodiments further provide a pressure vessel comprising at least one connection element, a pressure vessel blank, and a supporting shell connected to and supporting the pressure vessel blank. An aspect of the present embodiments provides a process for producing a pressure vessel blank using an apparatus comprising at least one connection element that enables a shortened time for producing a pressure vessel blank with increased stability under pressure.

An object of the present invention is to provide a pressure vessel that is light in weight and has a sufficient internal capacity as well as excellent durability. The present invention provides a pressure vessel (1) including: a cylindrical straight body section (10) and dome sections (11) provided at both ends of the body section (10), wherein: the body section (10) and the dome sections (11) are composed of a resin main body (2), and an outer shell (3) made of a fiber reinforced resin material, the outer shell (3) being provided on the outside of the main body (2); each of dome sections (2b) of the main body (2) has pinch-off regions (12) extending from a tip of the dome section (2b) toward the body section (2a); and when a distance from the tip of each of the dome sections (2b) to a boundary between the body section (2a) of the main body (2) and each of the dome sections (2b) in an axial direction of the body section (2a) is 1, an end (12a) of each of the pinch-off regions (12) opposite to the tip of the dome section (2b) is located in a region where an distance from the tip of the dome section (2b) in the axial direction of the body section (2a) is less than 1.

A container, in particular a plastic ampoule produced using a blow molding process, and filled and closed in the production mold, has a sleeve-shaped neck part (4) connected to a container body (2) as an axial extension. The neck part forms a seat (6) for a preformed insert (8) extending along the axis (12) of the neck part (4), and is formed in the production mold, on a peripheral region (14) of the insert (8). At least one sealing element (42; 68) is provided on the insert (8). The sealing element forms a seal in a sealing region surrounding the axis (12), in combination with a contact surface (38) formed on the seat (6) of the neck part (4).

The present disclosure provides a container and a process for producing the container. In an embodiment, the process includes placing a sleeve bag on valve assembly (SBoV) in a blow mold apparatus. The blow mold apparatus has two opposing and movable molds. The SBoV has a valve seat. The process includes extending a parison of flowable polymeric material around the SBoV and between the opposing molds. The process includes moving the opposing molds to a closed position and pressing an upstream portion of the parison against the valve seat. The process includes blow molding a downstream portion of the parison into a container-shape within the closed mold. The process includes forming a container with the valve seat melt bonded to a neck portion of the container.

The present invention relates to a pressure vessel, comprising a connecting element, an inner vessel and a support shell which surrounds the inner vessel, wherein the pressure vessel has the following features: the connecting element comprises a neck section in the form of a sleeve and a shoulder section; the connecting element is bonded via its outer face to an inner face of the inner vessel; the inner vessel is bonded to the support shell in such a way that the inner vessel is arranged in a sandwich-like manner at least in sections between the connecting element and the support shell; and the pressure vessel has at least one orifice delimited by the neck section of the connecting element, wherein the pressure vessel is characterized in that the outer face of the connecting element facing the inner vessel at least partly has a mean roughness of more than 50 m.