Plastic article or earthenware shaping or treating: apparatus – Means feeding fluent stock from plural sources to common... – Extrusion shaping means
Patent
1982-03-18
1983-12-20
Thurlow, Jeffery R.
Plastic article or earthenware shaping or treating: apparatus
Means feeding fluent stock from plural sources to common...
Extrusion shaping means
264173, 425462, B29F 306
Patent
active
044214650
ABSTRACT:
Disclosed is a method and apparatus for ensuring uniform distribution of higher and lower viscosity or flow rate resins in a product produced by a coextrusion process. A flow restriction is provided in the flow path of the lower viscosity or flow rate resin to increase the pressure drop of this resin as it passes through a coextrusion die. The increased pressure drop introduced by the flow restriction causes the lower viscosity or flow rate resin to be more uniformly distributed in the extruded product. A specific die construction providing a uniform resin flow channel within the die is also described.
REFERENCES:
patent: 2141776 (1938-12-01), Vautier et al.
patent: 2859476 (1958-11-01), Lainson
patent: 2978748 (1961-04-01), McCauley et al.
patent: 3308508 (1967-03-01), Schrenk
patent: 3365750 (1968-01-01), Donald
patent: 3611492 (1971-10-01), Scheibling
patent: 3669591 (1972-06-01), Fermi et al.
patent: 4061461 (1977-12-01), Hessenthaler
patent: 4091064 (1978-05-01), Kakinuma et al.
patent: 4125585 (1978-11-01), Rosenbaum
patent: 4208175 (1980-06-01), Rosenbaum
patent: 4249875 (1981-02-01), Hart et al.
Gilman Michael G.
McKillop Alexander J.
Mobil Oil Corporation
O'Sullivan Sr. James P.
Thurlow Jeffery R.
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