Electrical laminate

Details Electrical laminate Electrical laminate

1974-08-05

1976-02-24

Lesmes, George F.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including interlaminar mechanical fastener

156182, 156228, 156309, 174 685, 427 96, 428239, 428251, 428285, 428430, 428458, 428901, 428910, B32B 1712

Patent

active

039405346

ABSTRACT:
A mechanically sound electrically stable substrate for use in an electrical laminate wherein the substrate supports at least one electrically conductive metallic layer. The substrate portion comprises a woven glass cloth base pad which is interposed between a pair of outer substrate layers of a polyester mat. The polyester mat comprises a mat of spunbonded continuous filament polyester fibers, preferably polyethylene terephthalate fibers, calendered, with the fibers including a mixture of bulk fibers of relatively high melting point retained in place or bonded by a binder fiber of essentially the same polyester material but with a relatively lower melting point. In fabrication, the mat, along with the glass cloth, is saturated with a curable resin, for example a heat curable resin, preferably polybutadiene, which is cured in-situ.

REFERENCES:
patent: 2969300 (1961-01-01), Franz
patent: 3335050 (1967-08-01), Makowski et al.
patent: 3340606 (1967-09-01), Anderson et al.
patent: 3463698 (1969-08-01), Yanagihara et al.
patent: 3681474 (1972-08-01), Lombardi et al.

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