Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture
Patent
1990-05-08
1991-12-31
Ryan, Patrick J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including aperture
428195, 428209, 428323, 428327, 428328, 428357, 428403, 428446, 428901, 361397, B32B 900
Patent
active
050771159
ABSTRACT:
A thermoplastic composite material is presented which comprises a thermoplastic matrix which is highly filled with a coated ceramic filler. In an important feature of the present invention, the ceramic filler has been coated with a rubbery polymer that bonds to the filler. In a preferred embodiment, the thermoplastic matrix comprises a fluoropolymer, preferably a chlorofluoropolymer and the ceramic filler is a fused amorphous silica coated with a rubbery polymeric material. The thermoplastic composite material of this invention exhibits numerous advantages which makes it well suited for use as a bonding film, particularly a bonding film for producing multilayer printed wiring boards.
Arthur David J.
Horn, III Allen F.
Kristal Kenneth W.
Swei Gwo S.
Zdanis William R.
Rogers Corporation
Ryan Patrick J.
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