Method for the manufacture of a packing material with good gas-t

Details Method for the manufacture of a packing material with good gas-t Method for the manufacture of a packing material with good gas-t

1983-02-02

1984-07-17

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

15624411, B29D 702

Patent

active

044604254

ABSTRACT:
The invention relates to a method for the manufacture of packing material with good gas-tightness properties by coating a web or a sheet of paper with an aqueous solution containing polyvinyl alcohol and a thickener, e.g. carboxymethylcellulose, subsequently the water is boiled away and the coating layer formed is covered with a thin plastic film.

REFERENCES:
patent: 3230135 (1966-01-01), Hurst
patent: 3448000 (1969-06-01), Paquin et al.
patent: 3570748 (1971-03-01), Coyle et al.
patent: 3616191 (1971-10-01), Fuerholzer et al.

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