Metallizable, essentially isotropic polymeric substrates well ad

Details Metallizable, essentially isotropic polymeric substrates well ad Metallizable, essentially isotropic polymeric substrates well ad

1984-05-29

1985-09-17

Bell, James J.

Paper making and fiber liberation

Processes and products

Electrical or magnetic product characteristic

162124, 162125, 162128, 428290, 428323, 428402, 428901, D21F 1100

Patent

active

045418942

ABSTRACT:
Essentially isotropic metallizable polymeric substrates having very low coefficients of thermal expansion are well adopted for printed circuits, are facilely prepared by papermaking technique and hot pressing, and are comprised of a fibrous polymer matrix, advantageously an aramide non-woven batt, bonded together with a cured imido prepolymer, and include particulate filler material, advantageously electrically insulating metal oxide particles, distributed therethrough.

REFERENCES:
patent: 4294877 (1981-10-01), Graham
patent: 4313999 (1982-02-01), Hughes
patent: 4456712 (1984-06-01), Christie et al.

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