Polyetrafluoroethylene compositions

Details Polyetrafluoroethylene compositions Polyetrafluoroethylene compositions

1996-01-10

1998-01-13

Cooney Jr., John M.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 54, 521 59, 521134, 264127, 264154, 2642888, C08J 924

Patent

active

057080445

ABSTRACT:
In the present invention a blend of resin composition and blending technique is optimized to provide a desired balance of node size and fibril length with the additional property of thermal stability in the resulting stretched material.
The stretched blend can be described as a polytetrafluoroethylene porous material having a microstructure of nodes interconnected by fibrils in which the material comprises a blend of two different polytetrafluoroethylenes, one polytetrafluoroethylene being a homopolymer of tetrafluoroethylene and the other polytetrafluoroethylene being a modified polymer of tetrafluoroethylene.

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Chemical Abstracts, vol. 119, No. 4, 26 Jul. 1993 -Columbus, Ohio, US; abstract No. 29650, JP-A-04 296 332 (Nitto Denko Corp.) 20 Oct. 1992.

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