Process for producing the anisotropically electroconductive shee

Details Process for producing the anisotropically electroconductive shee Process for producing the anisotropically electroconductive shee

1990-09-27

1992-07-21

Theisen, Mary Lynn

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264104, 264108, B29C 6700

Patent

active

051320584

ABSTRACT:
A process for producing an anisotropically electroconductive sheet having a plurality of electroconductive portions extending in the direction of the thickness of the sheet, including the steps of forming a layer of a molding material consisting of a mixture of electroconductive particles and a high-molecular-weight substance in a cavity of a mold consisting of a pair of upper and lower molds and applying an anisitropic magnetic field to the molding material layer when a space is present between the molding surface of the upper mold and the molding material layer, to fluidize the molding material and simultaneously move the electroconductive particles in the molding material to areas where the magnetic field is applied, thereby allowing the electroconductive particles to gather in said areas to form the electroconductive portions including projecting portions.

REFERENCES:
patent: 2584441 (1952-02-01), Fredendall
patent: 4209481 (1980-06-01), Kashivo et al.
patent: 4292261 (1981-09-01), Kotani et al.
patent: 4571542 (1986-02-01), Kozo Arai
patent: 4737112 (1988-04-01), Jin et al.
patent: 4778635 (1988-10-01), Hechtman et al.
patent: 4863757 (1989-09-01), Durand

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