Large format container
AssigneeEntegris, Inc.
InventorsWilliam J. Shaner, Andrew McKenzie, Michael W. Johnson
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AssigneeEntegris, Inc.
InventorsWilliam J. Shaner, Andrew McKenzie, Michael W. Johnson
Estimating the term…
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.
An article comprising a large format container, the large format container including a polymeric main body including an internal surface defining an interior volume, wherein an arithmetic mean roughness of the internal surface of the polymeric main body is 0.75 μm or less,
Dependencies are inferred from the claim text.