Preform assembly for blow moulding a container, comprising at least a first and a second perform, wherein the first perform is positioned inside the second perform before blow moulding the performs into the container, wherein each perform has a body forming portion having a wall thickness of less than about 8 millimetres, preferably less than about 6 mm.

Preform assembly for blow moulding a container, comprising at least a first and a second perform, wherein the first perform is positioned inside the second perform before blow moulding the performs into the container, wherein each perform has a body forming portion having a wall thickness of less than about 8 millimetres, preferably less than about 6 mm.

This disclosure provides generally container base designs for use in packaging carbonated beverages and new containers that incorporate the base design. It has been found that improved physical and mechanical properties such as good stress crack performance can be achieving while improved light weighting and potential cost savings. The particular base and container designs are generally applicable to carbonated soft drink (CSD) containers, and can be used with containers of any size and with any type of base form such as petaloid or champagne base forms.

The present invention provides a water-based coating and/or coating system used to form sag resistant wet layers or coatings on a wide range of substrates. The coating system is effective for protecting metal-containing substrates, such as intermodal cargo containers, against corrosion. As an overview, the present invention provides water-based compositions as primer coats on substrates, and methods for applying the same to substrates. The method includes steps of applying a water-based paint to the interior surfaces of a substrate and drying the substrate by continuously forcing heated air onto the substrate as it moves through a drying chamber. Desirably, the primer incorporates a high level of one or more CAS agents for excellent sag resistance while drying in a broad range of relative humidity environments. Alternatively, modifications can be made to control temperature and humidity during spray application and drying as a way to increase sag resistance of the coating.

The present invention provides a water-based coating and/or coating system used to form sag resistant wet layers or coatings on a wide range of substrates. The coating system is effective for protecting metal-containing substrates, such as intermodal cargo containers, against corrosion. As an overview, the present invention provides water-based compositions as primer coats on substrates, and methods for applying the same to substrates. The method includes steps of applying a water-based paint to the interior surfaces of a substrate and drying the substrate by continuously forcing heated air onto the substrate as it moves through a drying chamber. Desirably, the primer incorporates a high level of one or more CAS agents for excellent sag resistance while drying in a broad range of relative humidity environments. Alternatively, modifications can be made to control temperature and humidity during spray application and drying as a way to increase sag resistance of the coating.

A method of machining a workpiece is provided that is capable of forming a fresh air inlet in an arbitrary position in an outer shell of a container. According to the present invention, a method of machining a workpiece is provided that includes: machining to form a round hole in a workpiece using a boring drill having a tubular end portion, the end portion provided with a flat surface and a notch, and having a blade on a side of the notch, by pressing the flat surface against the workpiece while rotating the drill to contact the blade with the workpiece.

The present disclosure provides a β-diketone storage container including: a metal storage container to which a liquid β-diketone is charged, the metal being an aluminum material; and an inorganic film on an inner surface of the storage container, the inorganic film containing at least one material selected from the group consisting of silicon dioxide, silicon carbonitride, silicon carbide, silicon nitride, diamond, and diamond-like carbon.

The present disclosure provides a β-diketone storage container including: a metal storage container to which a liquid β-diketone is charged, the metal being an aluminum material; and an inorganic film on an inner surface of the storage container, the inorganic film containing at least one material selected from the group consisting of silicon dioxide, silicon carbonitride, silicon carbide, silicon nitride, diamond, and diamond-like carbon.

As described herein, a polyimide chemical composition may be used for coating glass articles. According to embodiments, a coated glass article may include a glass container which may include a first surface and a second surface opposite the first surface, and a low-friction coating bonded to at least a portion of the first surface of the glass container. The low-friction coating may include a polyimide chemical composition. The polyimide chemical composition may be halogenated and the polyimide chemical composition may include a siloxane moiety.

As described herein, a polyimide chemical composition may be used for coating glass articles. According to embodiments, a coated glass article may include a glass container which may include a first surface and a second surface opposite the first surface, and a low-friction coating bonded to at least a portion of the first surface of the glass container. The low-friction coating may include a polyimide chemical composition. The polyimide chemical composition may be halogenated and the polyimide chemical composition may include a siloxane moiety.