Electrostatic pinning of extruded thermoplastic film

Details Electrostatic pinning of extruded thermoplastic film Electrostatic pinning of extruded thermoplastic film

1980-07-10

1982-01-05

Lowe, James B.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

4251748E, B29D 702, H05B 706

Patent

active

043093680

ABSTRACT:
Apparatus and process for the extrusion and quenching of thermoplastics films wherein the film is electrostatically pinned to a cooled quenching surface by means of a blade electrode having a charge-emitting edge which is non-linear and conforms substantially to the transverse curvature in the edge portions of the film.

REFERENCES:
patent: Re27771 (1973-10-01), Owens et al.
patent: 3039388 (1962-06-01), Brandt et al.
patent: 3223757 (1965-12-01), Owens et al.
patent: 3571853 (1971-03-01), Denton
patent: 3686374 (1972-08-01), Hawkins
patent: 3758251 (1973-09-01), Gillyns et al.
patent: 3883279 (1975-05-01), Heyer
patent: 3904725 (1975-09-01), Husky et al.
patent: 4203144 (1980-05-01), Okamoto

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