Fluoropolymer blending process

Details Fluoropolymer blending process Fluoropolymer blending process

2011-05-24

2011-05-24

Jagannathan, Vasu (Department: 1764)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C525S200000, C525S151000, C525S153000, C525S199000, C524S502000, C524S545000, C524S544000, C524S546000

Reexamination Certificate

active

07947775

ABSTRACT:
Aqueous dispersions on non-melt flowable PTFE and melt-fabricable perfluoropolymer are mixed together, followed by recovery of the resultant mixture of the dispersed particles of each of these polymers, and melt mixing of the resultant mixture of particles to obtain a blend in which the PTFE particles form the disperse phase and the perfluoropolymer forms the continuous phase, the melt mixing producing advantageous melt viscosities and the blend exhibiting advantageous physical properties even at high PTFE contents of about 30 wt %.

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