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Satellite extruder arrangement and method for the addition of an additive in a polymer melt within a dynamic mixer

  • US 5,951,159 A
  • Filed: 05/06/1998
  • Issued: 09/14/1999
  • Est. Priority Date: 03/05/1996
  • Status: Expired due to Fees
First Claim
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1. A method of mixing a plurality of compounds on a single screw extrusion machine comprising the steps of:

  • attaching a barrel of a dynamic mixer apparatus onto the downstream end of a barrel of said single screw extrusion machine, so as to be in plastic fluid communication therewith;

    arranging a support shaft in said dynamic mixer apparatus to rotatively carry a plurality of rotors and stators within its barrel;

    machining at least one introduction port through said barrel of said dynamic mixer apparatus, radially adjacent one of said rotors therein; and

    attaching a satellite extrusion mixer to said introduction port to permit the introduction of additives into any mixing process taking place within said barrel at a desired location where such introduction is best suited for that particular additive;

    introducing a mixable material into said barrel of said dynamic mixer;

    using said satellite extrusion mixer for introducing an additive into said introduction port for mixing with said mixable material.

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