Method of filling and sealing RF-sealable packaging containers

Details Method of filling and sealing RF-sealable packaging containers Method of filling and sealing RF-sealable packaging containers

1985-05-28

1987-04-28

Coan, James F.

Package making

Methods

Filling preformed receptacle and closing

53479, 53DIG2, B65B 702

Patent

active

046603549

ABSTRACT:
Packaging containers which are closed, except for a pinch-type filling valve or filling-opening, are provided with an RF-sealable polymer, at least in the valve or opening, in order to be able to seal the valve or opening using RF frequency. Preferably, polymers which are sealable using MW energy are used, including, preferably, carbon monoxide-containing ethylene polymers.

REFERENCES:
patent: 2676444 (1954-04-01), Gaubert
patent: 3992606 (1976-11-01), Arutt et al.
patent: 4248653 (1981-02-01), Gerber
patent: 4445550 (1984-05-01), Davis et al.
patent: 4534154 (1985-08-01), Gaubert
patent: 4539793 (1985-09-01), Malek

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