Method of making a dimensionally stable particle-loaded PTFE web

Details Method of making a dimensionally stable particle-loaded PTFE web Method of making a dimensionally stable particle-loaded PTFE web

1996-07-22

1997-09-23

Vanatta, Amy B.

Textiles: cloth finishing

Shrinking

26 186, 264175, 264282, D06C 2100, B29C 6700

Patent

active

056691238

ABSTRACT:
A mechanically compacted composite article comprising a PTFE fibril matrix that entraps particles retains more of its longitudinal dimension, when subjected to mechanical and/or thermal stress, than a similar but non-mechanically compacted article. A method of making a particulate loaded PTFE fibril web is disclosed, the method including biaxial calendaring to form a sheet or sheet laminate, and machanically compacting the sheet or sheet laminate.

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