Container made of synthetic material with improved rigidity

Details Container made of synthetic material with improved rigidity Container made of synthetic material with improved rigidity

1992-03-06

1993-04-27

Garbe, Stephen P.

Flexible bags

Wall details

Reinforced

53456, 229 8701, 493210, 493217, B65D 3302

Patent

active

052056511

ABSTRACT:
The stiffness of a flexible, substantially parallelepipedal container formed by shaping and welding a film which is made of a synthetic material and which is to enclose a liquid to be packaged, is improved by applying, before shaping, a second layer of a film formed of an identical or a different material, as a top film, to the surface of the film forming the container which does not subsequently come into contact with the liquid to be packaged. The top film includes a plurality of strips corresponding to the vertical surfaces of the final container which are welded to the film forming the container before shaping, along lines corresponding to the edges of the final parallelepipedal container.

REFERENCES:
patent: 2342324 (1944-02-01), Allen
patent: 3249286 (1966-05-01), Palmer
patent: 4223709 (1980-09-01), Myklebust
patent: 4253507 (1981-03-01), Williamson
patent: 4781475 (1988-11-01), La Fleur
patent: 4835037 (1989-05-01), Beer
patent: 4903859 (1990-02-01), Derby et al.
patent: 4941755 (1990-07-01), Cazes

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