Multicomponent continuous film die

Details Multicomponent continuous film die Multicomponent continuous film die

1982-04-07

1984-03-06

Thurlow, Jeffery R.

Plastic article or earthenware shaping or treating: apparatus

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

Extrusion shaping means

264171, 4251335, 425192R, 425379R, 425462, 425467, B29F 312

Patent

active

044351410

ABSTRACT:
An elongated flat die, for extruding parallel streams of different polymers to form a continuous, striped film, includes a body member which houses a replaceable insert. The insert is formed with grooves on at least two abutting surfaces, which, together with the interior surfaces of the body member, define separate, alternating passages through which the polymers flow. Streams of the different polymers flow together in alternating arrangement and exit the die through a variable lip passage.

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patent: 3761552 (1973-09-01), Chill et al.
patent: 3807918 (1974-04-01), Chill et al.
patent: 3927957 (1975-12-01), Chill et al.

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