Controlled coextrusion of barrier sheet

Details Controlled coextrusion of barrier sheet Controlled coextrusion of barrier sheet

1985-12-23

1987-06-30

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

15624411, 264 402, 264 78, 425135, 425141, 425169, B29C 4792

Patent

active

046769366

ABSTRACT:
The thickness of the barrier layer in coextruded multilayer, thermoformable resinous sheet material is controlled by transverse color monitoring during coextrusion of the sheet.

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