Preparation of dielectric coatings of variable dielectric consta

Details Preparation of dielectric coatings of variable dielectric consta Preparation of dielectric coatings of variable dielectric consta

1977-02-11

1979-01-02

Pianalto, Bernard D.

Stock material or miscellaneous articles

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427 41, 427294, B05D 306

Patent

active

041328299

ABSTRACT:
A plasma polymerization process for the deposition of a dielectric polymer coating on a substrate comprising disposing the substrate in a closed reactor between two temperature-controlled electrodes connected to a power supply, maintaining a vacuum within the closed reactor, causing a monomer gas or a gas mixture of a monomer and diluent to flow into the reactor, generating a plasma between the electrodes, and varying and controlling the dielectric constant of the polymer coating being deposited by regulating the gas total and partial pressures, the electric field strength and frequency, and the current density. A monomer, such as a polar saturated or unsaturated nitrogen-containing compound, or a monomer and diluent, such as a saturated or unsaturated aliphatic hydrocarbon and nitrogen, can be polymerized to form a dielectric coating having a varying dielectric constant in accordance with this plasma polymerization process.

REFERENCES:
patent: 3252830 (1966-05-01), Cummin et al.
patent: 3518108 (1970-06-01), Heiss et al.

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