Method for making composite plastic article

Details Method for making composite plastic article Method for making composite plastic article

1973-07-02

1977-03-22

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 97, 264102, 264266, 425DIG234, B29C 1707, B29D 300

Patent

active

040137481

ABSTRACT:
A method for making composite plastic containers in which a preformed sleeve is caused to expand with a plastic layer in the course of an injection blow molding operation and to adhere, upon expansion, to said plastic layer due to atmospheric pressure acting on the inside of said sleeve without an opposing pressure on the outside thereof.

REFERENCES:
patent: 3122598 (1964-02-01), Berger
patent: 3247550 (1966-04-01), Haines, Jr.
patent: 3358062 (1967-12-01), Lemelson
patent: 3476852 (1969-11-01), Shattuck
patent: 3719735 (1973-03-01), Valyi

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