Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Patent
1997-07-30
2000-02-29
Chen, Vivian
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
428 664, 4283044, 4283155, 4283159, 4283166, 4283179, 4283193, 4283197, 428323, 428421, 428422, 277650, 277651, 277652, 277654, 277936, 277945, 277946, B32B 518, B32B 530, B32B 532, B32B 702
Patent
active
060306947
ABSTRACT:
A composite fluoropolymer material contains outer layers consisting essentially of conformable porous polytetrafluoroethylene (PTFE) and interior layers consisting essentially of rigid fluoropolymer material which may be a densified expanded PTFE, wherein the composite layers may optionally contain electrically conductive fillers. The composite is bonded together to form a sheet material that is sufficiently conformable to provide good seal between surfaces and is sufficiently rigid to make the material easy to handle and install. The material of the present invention is particularly suitable for use as a gasket where rigidity is needed, customization or modification of gasket shape is desirable, and/or where a wide, even sealing surface is sought.
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PCT International Search Report PCT/US94/14318.
Dolan John W.
Mills David J.
Chen Vivian
W. L. Gore & Associates, Inc.
Wheatcraft Allan M.
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