Method for controlled orientation of extruded resins

Details Method for controlled orientation of extruded resins Method for controlled orientation of extruded resins

1984-10-29

1986-12-02

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Production of continuous or running length

264566, 264569, 425 72R, 4253261, B29C 5528

Patent

active

046263977

ABSTRACT:
A process for extruding biaxially oriented high density polyethylene film in which an additional secondary gaseous cooling medium is applied at strategic strain inducing locations of the blown bubble to control the final product properties of the extruded material.

REFERENCES:
patent: 3294882 (1966-12-01), Lutzmann et al.
patent: 3754067 (1973-08-01), St. Eve et al.
patent: 4115048 (1978-09-01), Alderfer et al.
patent: 4204819 (1980-05-01), Ushioda et al.
patent: 4472343 (1984-09-01), Kawamura et al.
patent: 4479766 (1984-10-01), Planeta
patent: 4511530 (1985-04-01), Olsson et al.

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