04482516 is referenced by 212 patents and cites 15 patents.

Porous polytetrafluoroethylene materials having high strength and coarse microstructure are produced by densifying the materials after removal of lubricant and then stretching. The term, "coarse," is used to indicate that the nodes are larger, the fibrils are longer, and the effective pore size is larger than conventional materials of the same matrix tensile strength. Densification can be achieved through the use of such devices as a densification die, a calender machine, or a press. This invention can be used to produce all kinds of shaped articles.

Title
Process for producing a high strength porous polytetrafluoroethylene product having a coarse microstructure
Application Number
6/416466
Publication Number
4482516
Application Date
September 10, 1982
Publication Date
November 13, 1984
Inventor
Richard A Staley
Flagstaff
AZ, US
Stephen C Newman
Flagstaff
AZ, US
James D Lewis
Flagstaff
AZ, US
Daniel E Hubis
Elkton
MD, US
Jeffery B Bowman
Flagstaff
AZ, US
Agent
Finnegan Henderson Farabow Garrett & Dunner
Assignee
W L Gore & Associates
DE, US
IPC
B29D 27/00
B29C 17/02
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