Large format polymeric containers formed by injection molding include a main body having internal surfaces of high density and smoothness that define the internal space. The large format containers can include external features such as reinforcement ribs that are formed integrally with the container body, the reinforcement ribs having greater thicknesses than other portions of the walls of the container. The internal surfaces can include rounded corners and sloping towards a center of the container. Methods of manufacturing the large format polymeric containers include forming the polymeric main body using injection molding. The polymeric main body can be formed of multiple injection molded parts that are joined, or formed as a single piece. The injection molding can include applying between approximately 700 bar and approximately 1100 bar of pressure where at least a portion of the internal surface contacts a mold surface.

A tank with a door locking mechanism for use in bioprocessing, and methods of using the door locking mechanism, is provided.

A collapsible liquid storage tank for use in an elongated trailer for selectively carrying solid freight and bulk liquid freight, comprising a first side frame configured for movement between a retracted position against a first trailer side wall for carrying solid freight and a deployed position for carrying liquid freight, a second side frame configured for movement between a retracted position against a second trailer side wall for carrying solid freight and a deployed position for carrying liquid freight, a rear frame positioned between the first and second side frames when the first and second side frames are in the deployed position, a liner having side walls connected to the first and second side frames and the rear frame, a liquid impermeable bladder disposed within the liner, and at least one baffle operatively arranged to be positioned between the first and second side frames.

Disclosed herein are exemplary embodiments of linings or liners (e.g., liners with corner reinforcement, etc.), methods of providing a liner or lining for a tank, and methods and apparatus for providing additional protection and/or reinforcement at the corners of a liner or lining. In an exemplary embodiment, a method generally includes positioning and attaching one or more corner attachments at one or more corners of a liner that are formed between the bottom and the one or more sides of the liner. The one or more corner attachments may be configured to provide additional protection and/or reinforcement at the one or more corners of the liner.

The present disclosure relates to liners and methods of making liners. The liners may be suitable for use with tanks and other storage/containment vessels, such as process tanks, immersion tanks, indoor or outdoor containment pits, gravity feed conduits (e.g., concrete trench, canal, or drain, etc.) for transferring or conveying liquid, grain storage tanks or containers (e.g., dielectric or electrically non-conductive liners for grain storage, etc.), etc.

A dual-purpose tank container is provided, designed for transporting unrefined or refined fluid within the same internal space, eliminating unproductive deadheading. The tank container includes an inner tank in a frame, and outer insulation shell, the tank being equipped with at least one diaphragm so that a fluid, for example crude oil or diesel fuel, can occupy inner space without risk of contamination from a residual fluid. The high viscosity unrefined fluid can be almost completely drained using fluid draining channels present on the diaphragm surface, increasing transportation economy and eliminating any residual fluid pockets. At least one inlet present on the upper tank body supplies a solvent vapor/fluid to condition the space between the diaphragm and the tank wall, thereby preventing sticking of the diaphragm to the tank inner surface.

A system for transporting fluid cargo within a shipping container, the system comprising an open topped box having side walls and end walls and a flexible membrane which either independently or in combination with the box contains the fluid cargo. The box supports the portion of the cargo within the box and is designed to flex and absorb at least part of the horizontal forces generated within the cargo during its transportation thus preventing overloading of the walls of the surrounding container. The membrane may be a bladder which completely encloses the cargo and is disposed partially within the box to contain the cargo independently of the box. The box may have a floor pan which can seal the box against leakage of any cargo.

The present invention relates to a container liner for holding liquid goods, wherein the liner comprises a film comprising one or more layers, wherein at least one of said layers is a layer L1 comprising (a) ≥20.0 wt %, preferably ≥20.0 and ≤80.0 wt %, with regard to the total weight of that layer L1, of a polyethylene P1 having: •a density of >900 and <915 kg/m.sup.3, preferably of >905 and <913 kg/m.sup.3 as determined in accordance with ASTM D1505 (2010); •a melt mass flow rate of ≥0.1 and ≤5.0 g/10 min, preferably of ≥0.5 and ≤2.0 g/10 min, as determined in accordance with ISO 1133-1 (2011) at 190° C. using a load of 2.16 kg; and (b) ≥20.0 wt %, preferably ≥20.0 and ≤80.0 wt %, with regard to the total weight of that layer L1, of a polyethylene plastomer P2 having: •a density of >880 and <905 kg/m.sup.3, preferably of >890 and <904 kg/m.sup.3 as determined in accordance with ASTM D1505 (2010); •a melt mass flow rate of ≥0.1 and ≤5.0 g/10 min, preferably of ≥0.5 and ≤2.0 g/10 min, as determined in accordance with ISO 1133-1 (2011) at 190° C. using a load of 2.16 kg. Such container liner demonstrates a desirably high flex resistance, combined with a high dart impact resistance, and a high tensile strength.

A modular subsea fluid storage unit comprises a variable-volume inner tank having a rigid top panel and a peripheral wall that is flexible by virtue of concertina formations. The peripheral wall is extensible and retractable vertically while the horizontal width of the tank remains substantially unchanged. A side wall of a lower housing part surrounds and is spaced horizontally from the peripheral wall of the inner tank to define a floodable gap between the peripheral wall and the side wall that surrounds the tank. An upper housing part extends over and is vertically spaced from the top panel of the inner tank and overlaps the side wall to enclose the inner tank. The floodable gap and the upper housing part enhance thermal insulation and trap any fluids that may leak from the inner tank.

A liner (L) has a liner body (11) with a front wall (12), rear wall (16), bottom wall (13), a top wall (14). The top wall also includes a tubular excess liner material or chute (19) located close to the rear wall and which includes a filling fitment (20) with a fitment cap (21). The liner also has a inlet/outlet port or bottom fitment (23). The liner may include a gap-filler or filler strip (70) of foam material extending outwardly from a position closely adjacent the outlet fitment. The chute or filling fitment is positioned on the top wall closely adjacent the rear wall and diagonally opposite the bottom fitment to provide a generally equal run of material in either direction between the top fitment and the bottom fitment.