Laminated products, and methods and apparatus for producing the

Details Laminated products, and methods and apparatus for producing the Laminated products, and methods and apparatus for producing the

1964-04-09

1979-08-21

Lazarus, Richard B.

Plastic article or earthenware shaping or treating: apparatus

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

Extrusion shaping means

425462, B29F 301, B29F 304

Patent

active

041652100

ABSTRACT:
Extrusion apparatus for producing laminated products from at least two streams of thermoplastic materials, said apparatus including a flow path leading to a die having a discharge orifice, the thermoplastic materials being introduced separately into the flow path and pass therethrough under pressure in laminar and coextensive streams which flow laminarly and without mixing toward the discharge orifice, without turbulence or friction at the interface between the two streams, and exit therefrom as a laminated film or tube.

REFERENCES:
patent: 2809393 (1957-10-01), Hauptman
patent: 3223761 (1965-12-01), Raley
patent: 3274646 (1966-09-01), Krystof
patent: 3314108 (1967-04-01), Wienard et al.
patent: 3354506 (1967-11-01), Raley

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