Multi-layer container and method of making same

Details Multi-layer container and method of making same Multi-layer container and method of making same

1979-07-20

1985-07-02

Cannon, James C.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

2065246, 2643288, 264513, 426113, 426114, 426127, 428516, 428520, B29C 1707, B29D 904, B29F 106, B32B 102

Patent

active

045268215

ABSTRACT:
A rigid container is made by injection molding a parison having plural layers of polymers. The parison is blow molded to the final shape of the container. Control during injection is exercised over each of the plural polymers so as to produce uninterrupted layers extending throughout the walls of the parison and to insure that the interior layers are completely encapsulated within the outer layers.

REFERENCES:
patent: 3173175 (1965-03-01), Lemelson
patent: 3616495 (1971-11-01), Lemelson
patent: 3820928 (1974-06-01), Hehl
patent: 3882259 (1975-05-01), Nohara
patent: 3947177 (1976-03-01), Eckhardt
patent: 4013748 (1977-03-01), Valyi
patent: 4079850 (1978-03-01), Suzuki et al.
patent: 4144013 (1979-03-01), Simmons
patent: 4174413 (1979-11-01), Yasuike et al.
patent: 4255490 (1981-03-01), Katsura

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