Microsphere-filled polytetrafluoroethylene compositions

Details Microsphere-filled polytetrafluoroethylene compositions Microsphere-filled polytetrafluoroethylene compositions

2008-01-01

2008-01-01

Wu, David W. (Department: 1713)

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...

C524S545000, C524S493000, C524S494000, C524S847000, C428S402000, C523S218000, C523S219000

Reexamination Certificate

active

07314898

ABSTRACT:
The present invention is a composition that includes granular-grade polytetrafluoroethylene and a plurality of microspheres, where the plurality of microspheres have an average specific gravity less than about 0.9 grams per cubic centimeter.

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