Method for producing a container having an inside bag

Details Method for producing a container having an inside bag Method for producing a container having an inside bag

1990-09-21

1992-06-30

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

Anti-stick or adhesion preventing coating

264155, 264270, B29C 4104

Patent

active

051260867

ABSTRACT:
A method for producing a container having an inside bag for the accommodation of a filling material w which is applied by a propellant between the container and the inside bag from a valve or the like, wherein after production of the container, for example by pressing, deep drawing or the like, its interior is provided with an inside protective lacquer and subsequently primed. Thereupon, plastic for the inside bag is injected into the container and the container having the inside bag is subsequently subjected to heat to remove superfluous solvent from the plastic. Then a bottom hole is shaped out for the later introduction of the propellant. After injection of the plastic, the container is placed in an oven and rotated therein for a lengthy period.

REFERENCES:
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patent: 3318985 (1967-05-01), Turner et al.
patent: 3666528 (1972-05-01), Barnhardt
patent: 3691269 (1972-09-01), Robinson et al.
patent: 3885016 (1975-05-01), Pivar
patent: 4198365 (1980-04-01), Pelton
patent: 4230659 (1980-10-01), Sutch
patent: 4293353 (1981-10-01), Pelton et al.
patent: 4865787 (1989-09-01), Vallance et al.

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