Process for producing filled polytetrafluoroethylene resin compo

Details Process for producing filled polytetrafluoroethylene resin compo Process for producing filled polytetrafluoroethylene resin compo

1996-02-28

1997-12-16

Szekely, Peter A.

Toilet

Toothpick

264122, 264127, 264146, 264211, 264464, 264482, A61C 1504, B28B 1116, D01F 612

Patent

active

056973900

ABSTRACT:
A process is provided for producing an additive-containing PTFE or other fluorocarbon polymer resin which achieves substantially complete and thorough homogeneous distribution of the selected additive within the polymer matrix. The selected additive and polymer are blended and then subjected to an air milling in an air impact pulverizer to achieve particle to particle impact and the homogeneous distribution of the additive in and among the polymer particles. The milled polymer-additive composite is paste extruded and further processed to form additive-containing PTFE products such as dental floss, insulating or conductive materials, laser markable materials, abrasion resistance materials and the like.

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Ross, J.A., DuPont publication PIB #34--Fine Powder Blending Machines, Principles, Performance (Oct. 1968) Garlock Plastomer Products, Trost Air Impact Pulverizers (Undated).

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