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US 11,253,829 B2Granted
Process for producing solid particles
AssigneeLANXESS Deutschland GmbH
InventorsMichael Witt, Nikolaj Caspers, Ulrich-Peter Szczecina
Life of this patent
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Abstract
Process for the production of solid particles comprising a material with melting point from −20 to 300° C. at atmospheric pressure, characterized in that a mixture comprising: a1) the material in molten form and a2) the material in solid form is mixed by means of an extruder to give a paste, this is forced through a pelletizing die to give strands, and the strands are comminuted.
Claims13
A process for the production of solid particles comprising a material with a melting point of −20 to 300° C. at atmospheric pressure, the process comprising:
- Mixing within an extruder
- a1) the material in molten form, and
- a2) the material in solid form
- to give a paste,
- forcing the paste through a pelletizing die to form strands, and comminuting the strands into solid particles,
- wherein the material is caprolactam, laurolactam or a mixture thereof.
3 more elements
Dependencies are inferred from the claim text.