Nozzle for coinjection of hollow articles and preforms

Details Nozzle for coinjection of hollow articles and preforms Nozzle for coinjection of hollow articles and preforms

1987-07-13

1988-10-04

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

264 406, 264 451, 2643284, 26432815, 425549, 425557, 425562, 425564, 425570, 425572, B29C 4516

Patent

active

047753080

ABSTRACT:
Apparatus for coinjecting a plurality of thermoplastic materials to mold an article having a layered wall structure using thermoplastic material having different optimum processing temperatures including the maintenance of the optimum temperatures in flow paths individual to each material from its source to a mold cavity.

REFERENCES:
patent: 3981650 (1976-09-01), Page
patent: 4286941 (1981-09-01), Gellert
patent: 4511528 (1985-04-01), Kudert et al.

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