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US 2026/0158458 A1Published application
Containers, methods of preparing a container, and methods of mixing a liquid slurry in the container
AssigneeEntegris, Inc.
InventorsRiley Thiesfeld, Michael W. Johnson, Marc A. Maxim
Life of this patent
Estimating the term…
Abstract
Described are containers and methods of mixing a slurry such as a CMP slurry in a container, the container comprising baffles to allow the slurry to be mixed to a uniform distribution within the container, while forming not more than a minimum vortex.
Claims22
A method of mixing a slurry that contains suspended abrasive particles and dissolved chemical ingredient, the method comprising:
- in a container that comprises
- a top, a bottom, a cylindrical sidewall extending along a sidewall height between the top and the bottom, and a container interior defined by the top, the bottom, and the sidewalls, the container interior having an interior volume,
- one or more baffles extending from the sidewall into the container interior,
- a volume of slurry in the interior,
- mixing the volume of slurry within the container interior to produce no more than a minimum vortex in the slurry, while achieving a distribution of the abrasive particles in the volume of slurry that includes at least 30 percent of the abrasive particles located within the top half of the volume of slurry.
2 more elements
A molded container comprising:
- a top, a bottom, a cylindrical sidewall extending along a sidewall height between the top and the bottom, and a container interior defined by the top, the bottom, and the sidewalls, the container interior having an interior volume,
- a cover at the top,
- slurry in the container interior, and
- one or more baffles extending from the sidewall into the container interior, the one or more baffles being effective to mix the slurry within the container interior to produce no more than a minimum vortex in the slurry, while achieving a distribution of the abrasive particles in the volume of aqueous slurry that includes at least 30 percent of the abrasive particles located within the top half of the volume of slurry.
1 more element
A method of forming a blow molded container, the method comprising:
- placing a cylindrical parison in mold cavity,
- the cylindrical parison having a hollow interior and a flowable thermoplastic sidewall,
- the mold cavity comprising
- a cavity bottom,
- a cylindrical cavity sidewall extending vertically from the bottom and having a height, and
- extensions on the sidewall extending along a portion of the height, and
- dispensing air into the hollow interior of the parison to cause the thermoplastic sidewalls to expand to contact the mold interior.
4 more elements
Dependencies are inferred from the claim text.