Adhisive-filler polymer film composite

Details Adhisive-filler polymer film composite Adhisive-filler polymer film composite

1996-01-25

1998-05-19

Chen, Vivian

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

4283044, 4283155, 4283159, 4283171, 4283177, 4283179, 4283184, 4283193, 4283197, 4283199, 428323, 428328, 428331, 428413, 428422, 428463, 428521, B32B 516, B32B 518, B32B 2704, B32B 2720

Patent

active

057533580

ABSTRACT:
An adhesive composite material comprises an expanded fluoropolymer with nodes and interconnected fibrils, the fluoropolymer having a void volume which is at least partially filled with a mixture containing a thermoset or thermoplastic adhesive and a particulate inorganic filler. The composite material contains sufficient adhesive and filler such that the composite contains between about 5 to about 40 volume percent expanded fluoropolymer; 5-85 volume percent inorganic filler; and 10-95 volume percent of adhesive and filler, the adhesive and filler being contained within the voids of the expanded fluoropolymer. In the composite, the ratio of the mean flow pore size of the expanded fluoropolymer to the largest particle size of the filler is at least about 2 and/or the ratio of the minimum pore size of the expanded fluoropolymer to the largest particle size of the filler is at least about 1.4.

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