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US 12,103,202 B2Granted
Process for grinding materials
AssigneeInternational Fine Chemistry, LLC
InventorStanley V. Martin
Life of this patent
Estimating the term…
Abstract
A process for grinding materials includes grinding a frozen plastic material to form a first-stage plastic material in a first mill. The first-stage plastic material is processed in a second mill to form material having a particle size less than about 100 μm.
Claims17
A process for grinding materials, the process comprising,
- freezing a plastic material having a particle size of at least 300 μm to form a frozen plastic material,
- grinding the frozen plastic material in a first mill to form first-stage plastic material having a particle size of less than 300 μm, and
- grinding the first-stage plastic material in a second mill to form a second-stage plastic material having a particle size less than about 100 μm,
- wherein the first-stage plastic material is transferred directly from the first mill to the second mill after the step of grinding the frozen plastic material, and the first-stage plastic material is not refrozen prior to the step of grinding the first-stage plastic material in the second mill.
1 more element
Dependencies are inferred from the claim text.