A process aid masterbatch comprising a) 0.05 to 25 weight percent fluoropolymer;
b) 0.2 to 10 weight percent of an organic soap selected from the group consisting
of carboxylic acids having from 6 to 34 carbon atoms; salts thereof; hydrocarbon
sulfonates having from 6 to 34 carbon atoms; and salts thereof; c) at least 5 weight
percent mineral particulate; and d) a non-fluorinated melt-processable polymer
improves the extrusion processability of non-fluorinated melt-processable polymers.
