Method for the improvement of gramophone records

Details Method for the improvement of gramophone records Method for the improvement of gramophone records

1979-07-25

1981-11-24

Newsome, John H.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

427 40, C07C 324

Patent

active

043023070

ABSTRACT:
Gramophone records made of a vinyl chloride based resin are subjected to a treatment with low temperature plasma of a gas having no polymerizability in the plasma condition. A markedly improved anti-static effect is imparted to the surface of the gramophone record which also becomes highly resistant to wearing so that the signal
oise ratio in playing of the gramophone record is remarkably improved even after many times of repeated playing of the record.

REFERENCES:
patent: 3901994 (1975-08-01), Mehalso et al.
patent: 3959104 (1976-05-01), Fales
Cuomo et al. "IBM Tech. Disc. Bull." V. 20, No. 9, Feb. 1978, p. 3785.

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