Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Production of continuous or running length
Patent
1990-06-11
1992-01-28
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Production of continuous or running length
264556, 264562, 264178R, 26421118, 264234, 264237, 2642896, 264345, 264348, B29C 4788
Patent
active
050842277
ABSTRACT:
A process for cooling a heated polymer film by applying to both surfaces of the heated film, a cooling liquid adapted for wetting contact with the film surfaces. The viscosity of the layers of liquid adhering to the film surfaces is significantly reduced to facilitate removal of such liquid layers. The viscosity can be reduced by significantly raising the temperature of the adhering liquid layers after the film has been sufficiently cooled or by changing the adhering liquid to a different liquid of lower viscosity. Preferably, the liquid layers are removed for the film surfaces by conveying the liquid carrying film upwardly to cause the liquid layers to each form into a generally triangular shape with the vertex extending upwardly and blowing air stream downwardly against each such vertex.
REFERENCES:
patent: 3058151 (1962-10-01), Gonsalves
patent: 3104937 (1963-09-01), Wyckoff et al.
patent: 3277519 (1966-10-01), Jones
patent: 3377413 (1968-04-01), Jansson et al.
patent: 4093695 (1978-06-01), Heirbaut
patent: 4293508 (1981-10-01), Heirbaut et al.
patent: 4548778 (1985-10-01), Fuji
patent: 4892689 (1990-01-01), Van Cappellen et al.
Keyzer Jan K. D.
Rens Walter J.
Van Put Patrick R.
Vancoppenolle Gery
Agfa-Gevaert N. V.
Daniel William J.
Thurlow Jeffery
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