Metal foil-clad laminate having surface smoothness

Details Metal foil-clad laminate having surface smoothness Metal foil-clad laminate having surface smoothness

1991-07-26

1994-11-29

Withers, James D.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including interlaminar mechanical fastener

428237, 428240, 428241, 428251, 428285, 428302, 428901, B32B 1702, B32B 516, B32B 506

Patent

active

053689216

ABSTRACT:
A metal foil-clad laminate obtained by lamination molding a resin-impregnated substrate and a metal foil, wherein the resin-impregnated substrate contains from 5 to 30% by weight of at least one inorganic filler selected from the group consisting of calcined kaolin, spherical fused silica, non-swellable synthetic mica, and a glass fine powder, the filler having an average particle diameter of from 0.1 to 5 .mu.m and at least 90 wt % of the filler having a particle diameter of from 0.02 to 5 .mu.m, and the resin-impregnated substrate is used as at least a surface layer of the laminate or as a resin-impregnated substrate which adheres the metal foil, thereby providing a surface smooth metal foil-clad laminate having a diminished surface undulation attributable to the substrate.

REFERENCES:
patent: 3801427 (1974-04-01), Morishita et al.
patent: 4671984 (1987-06-01), Maeda et al.
patent: 4751146 (1988-06-01), Maeda et al.
patent: 4772496 (1988-08-01), Maeda et al.
patent: 5080967 (1992-01-01), Noguchi et al.

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