A medical fluid container includes a container interior and a connecting piece that forms an inner channel. The container interior can be accessed from the outside via the connecting piece. The connecting piece has an outer thread on a connecting piece longitudinal section. The inner channel expands in a substantially conical manner in a region of the outer thread, starting from the container interior, to then preferably transition into a first cylindrical channel shape which extends to a free opening of the connecting piece. A method can be used for producing the medical fluid container from a container blank.

A container and a method for making a container are provided. The method includes injection molding a preform having a body forming region, a neck forming region above the body forming region, and a dome forming region above the neck forming region. After forming the preform, the preform is mounted in a mold having a surface, the mold surface having a neck forming surface to form a neck having a snap fit portion or a threaded portion. After mounting the preform, the preform is stretched against the mold surface to form an intermediate article having a dome portion connected to a neck portion of the container. Thereafter, the dome portion is severed from the neck portion to produce a wide mouth container, wherein the ratio of a wall thickness of the neck forming region of the preform to the wall thickness of the neck portion is ranges from 4.8 to 7.

A preform is disclosed for the production of plastic containers, for example plastic bottles, in a stretch-blow-molding method. The preform can include an elongated preform body having a closed longitudinal end and which connects on an opposite longitudinal end to a neck section having a pour opening, the neck section having an outside wall with a fastening means. A rotating flange at a transition from the preform body to the neck section, wherein at least a portion of the rotating flange is annular and radially extends above an outside wall of the preform body. A peripheral annular groove can extend obliquely from a base of the annular groove to the outside wall of the neck section forming a circumferential inner collar, and wherein the inner collar the direction of the preform body, extends axially above the annular groove and extends into an inside wall of the preform body.

A container obtained by blow-moulding a rolled tube. The container includes a body extending, according to a longitudinal axis, between a bottom and a neck made integrally in one-piece with the body. The body has, along a height according to the longitudinal axis, a wall having a thickness between 0.05 mm and 0.4 mm. The neck has, along the height according to the longitudinal axis, a wall having a thickness between 0.4 mm and 0.8 mm.

A container and a method for making a container are provided. The method includes injection molding a preform having a body forming region, a neck forming region, and a dome forming region. After forming the preform, the preform is mounted in a mold having a surface, the mold surface having a neck forming surface to form a neck having a snap fit portion or a threaded portion. After mounting the preform, the preform is stretched against the mold surface to form an intermediate article having a dome portion connected to a neck portion of the container. Thereafter, the dome portion is severed from the neck portion to produce a wide mouth container, wherein the ratio of a wall thickness of the neck forming region of the preform to the wall thickness of the neck portion is ranges from 4.8 to 7.

A cup-shaped body having an axis of longitudinal extension and defining a mouth and a longitudinally-extended body which is closed at the opposite end from the mouth; the longitudinally-extended body has a conical or frustum-like extension with a diameter that increases progressively from the opposite end toward the mouth, the cup-shaped body having a height extension measured between the mouth and the opposite end, while the mouth has a circular shape with a diameter.

The cup-shaped body has the following features: the ratio between the height extension and diameter is between 0.35 and 1.65; and the ratio between the diameter, measured in millimeters, and the average taper (Cmedia) between the taper of the external surface of the longitudinally-extended body and the taper of the internal surface of the longitudinally-extended body, diameter/Cmedia, is between 0.5 and 1.

A container obtained by blow-moulding a rolled tube. The container includes a body extending, according to a longitudinal axis, between a bottom and a neck made integrally in one-piece with the body. The body has, along a height according to the longitudinal axis, a wall having a thickness between 0.05 mm and 0.4 mm. The neck has, along the height according to the longitudinal axis, a wall having a thickness between 0.4 mm and 0.8 mm.