Process aid for melt processable polymers

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

Reexamination Certificate

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Details

C525S165000, C525S166000, C525S176000, C525S179000, C525S199000, C525S200000, C525S326200

Reexamination Certificate

active

07446148

ABSTRACT:
Extrusion processability of non-fluorinated melt-processable polymers is improved by introducing a fluoropolymer process aid by means whereby the weight average particle size of the fluoropolymer is greater than 2 microns as it reaches the extruder die entrance.

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