Nova Chemicals (international) S.a.

Nova Chemicals Inc.

Henry Hay

Gilbert Alexander Arnould

Carmine D'Agostino

Brian Ramsey

Daniel Andrew Depenhart

Sean Barton

Leslie Kirby

Tony Tikuisis

Celine Bellehumeur

Derek Wasylenko

Alan Schrob

Sherman McKinniss

Donald Belcher

Van Dang

Compositions for forming rotationally molded (rotomolded) parts, methods for forming the rotomolded parts, and the rotomolded parts are provided. An exemplary rotomolding composition includes a virgin resin, including a polyethylene polymer, and a postconsumer recycle (PCR) resin.

Rotational molding composition

A rotomolding composition comprises a blend of two polyethylenes: 1) a well stabilized polyethylene; and 2) a poorly stabilized polyethylene having a very low flow rate. The poorly stabilized polyethylene is further characterized by having a large particle size (from 500 to 3000 microns). Rotomolded parts prepared from the composition have a rough inner surface. Polyurethane foam adheres well to this rough surface.

Rotomolding composition

Rotomolded polyethylene containers that are used to store sulfuric acid can become discolored on the interior surface which is in contact with the acid. This problem may be mitigated by the use of an additive package that contains two primary antioxidants.

Acid resistant polyethylene containers

A unitary plastic container, which is optionally used for waste collection comprises a base, a front wall, a back wall and two opposing side walls, each wall extending upwardly from the base to define an open container top and an interior container volume. Each side wall has an outwardly extending sidewall portion which is outwardly offset relative to the rest of the container side wall. In each outwardly extending sidewall portion, an elongated cutout, indentation or channel is present. The elongated channel has a forward opening, a rearward opening and an elongated side opening extending from the forward opening to the rearward opening. The elongated channel lies within the interior container volume and divides the outwardly extending sidewall portion into two areas: an upper outwardly extending sidewall portion and a lower outwardly extending portion. The outwardly open elongate channel may be fitted with a reinforcing sleeve.

Plastic dumpster

A collapsible refuse bin which has two ends walls and two side walls atop a base. The end walls, side walls and base are twinned wall plastic components. The side walls are made of two panels which are pivotally attached to one another along vertical axis. The end walls are pivotally attached to the base. The side walls engage a base along a tongue and groove means. Side walls and end walls have mutually engaging edges. Removal of the side walls followed by folding down the end walls converts the refuse bin to a collapsed position.

Collapsible refuse bin

A collapsible, portable container having a roof, a base, two foldable end walls and two removable side walls. The end walls and side walls of the container are load bearing elements having a twinned wall structure made of rotomolded plastic. The container is collapsed by removing the side walls and inwardly folding the end walls to draw the roof closer to the base. The load bearing capacity of the end walls and the side walls can be increased by arched indentations formed within the twinned wall structure.

Collapsible plastic container

A collapsible, portable container having a roof, a base, two foldable end walls and two removable side walls. The container is collapsed by removing the side walls and inwardly folding the end walls to draw the roof closer to the base. A slide lock feature is present which alternatively allows or prevents the inward folding of the container end walls.

Collapsible container with a sliding lock feature

A container assembly () having a container body () and exterior shelf structures () that are each reversibly attached to exterior surfaces () of first () and second () sidewalls of the container body (), is described. Each exterior shelf structure () has a shelf base (), and a forward shelf portion () and a rear shelf portion () that each extend upwardly from the shelf base (). Each exterior shelf structure has a shelf space () that resides between and is defined in part by the forward () and rear () shelf portions. The forward shelf portion () of each exterior shelf structure () has an open front or face () that is in communication with a recessed chamber () of the forward shelf portion (). The exterior shelf structures () may each be reversibly attached to the container body sidewalls () by means of tabs () that are received within tab apertures () of the sidewalls. The exterior shelf structures () may be removed from the container body sidewalls () and stored within the container interior (), allowing the container body to be compactly stored and/or shipped. The container assembly, including the container body and exterior shelf structures, may be used to store items, such as personal items, e.g., toys and/or clothing.

Container assembly having removable exterior shelf structures

The present invention relates to a container assembly () that includes a support structure () and a container () that resides reversibly within the support structure interior (). The support structure () includes a pair of opposed first and second support sidewalls () each having an elongated tube () having a first open end () and an elongated hollow interior (). The container () has opposing sidewalls () that each have an elongated channel (). The first and second elongated tubes () of the support structure () are each reversibly received within the first and second elongated sidewall channels () of the container (), as the container is reversibly introduced (e.g., slid) into the support structure interior () through the open forward portion () of the support structure (). The container assembly () may be reversibly lifted by lift members (e.g., lift forks) introduced through the first open ends () and into the elongated hollow interiors () of the first and second elongated tubes () of the support structure (). At least a portion of the container (e.g., upper container portion) may have a three dimensional shape corresponding to an activity being conducted in the venue in which the container assembly is used, such as, a protective sports helmet shape (e.g., a hockey helmet shape) or a sports ball shape (e.g., a soccer ball shape).

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Calgary, Canada

Henry Hay