Valve plate and feedblock design for co-extrusion apparatus and

Details Valve plate and feedblock design for co-extrusion apparatus and Valve plate and feedblock design for co-extrusion apparatus and

1983-04-15

1984-11-20

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Layered, stratified traversely of length, or multiphase...

264 407, 4251311, 4251335, 425381, 425462, 425466, B29F 304

Patent

active

044838123

ABSTRACT:
Disclosed is an apparatus and process for producing multiple-layer film or sheeting which includes an improved laydown means comprising adjustable cam-actuated control means for controlling the polymer flow and individual layer thickness.

REFERENCES:
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patent: 3545043 (1970-12-01), Schwindy
patent: 3555128 (1971-01-01), Schrenk
patent: 3680997 (1972-08-01), Dukert et al.
patent: 3743143 (1973-07-01), Barney et al.
patent: 3761211 (1973-09-01), Parkinson
patent: 3815637 (1974-06-01), Carrow
patent: 3909170 (1975-09-01), Riboulet
patent: 3924997 (1975-12-01), Kosinsky
patent: 4279857 (1981-07-01), Feuerherm

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