Rapid drying of polyamide resins using high frequency electric f

Details Rapid drying of polyamide resins using high frequency electric f Rapid drying of polyamide resins using high frequency electric f

1991-12-11

1993-08-24

Bennet, Henry A.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 30, F26B 3347

Patent

active

052377555

ABSTRACT:
A process for quickly drying thermoplastic polyamide resin by the use of a high frequency electric field. The process comprises placing the polyamide between at least two electrodes, applying a high frequency voltage to the electrodes to produce a heating rate of the polyamide between 0.5.degree. C. and 50.degree. C./min, and then removing the water evolved from the polyamide.

REFERENCES:
patent: 3964769 (1976-06-01), Shatzkin
patent: 4254253 (1981-03-01), Brent, Jr. et al.
patent: 4546226 (1985-10-01), Trembley et al.

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