Process for forming a polymeric coating on the outside surface o

Details Process for forming a polymeric coating on the outside surface o Process for forming a polymeric coating on the outside surface o

1981-03-26

1983-06-28

Beck, Shrive P.

Coating processes

With post-treatment of coating or coating material

Solid treating member or material contacts coating

427375, 427394, 427439, 4273741, 426135, 426138, 118115, 118117, 118 18, 118 20, 118419, B05D 312, B05D 140

Patent

active

043905692

ABSTRACT:
Disclosed is a process for coating the outside surface of a length of tubing comprising the steps of coating the outside surface of the tubing with an initial layer of coating liquid, transporting the coated tubing along its longitudinal axis in a substantially vertically upward direction; passing the coated tubing through a constriction of predetermined width to reduce the thickness of the initial layer and form a thin layer of desired thickness on the outside of the tubing; leveling the thin layer without reducing the weight per unit area of the thin layer to form a layer of uniform thickness; and exposing the tubing to heat of a sufficient temperature to solidify the coating liquid and form an uninterrupted film of uniform thickness on the outside of the tubing.

REFERENCES:
patent: 2210436 (1937-10-01), Weigand et al.
patent: 2901358 (1958-02-01), Underwood et al.
patent: 2961323 (1960-11-01), Underwood et al.
patent: 2977243 (1961-03-01), Meier
patent: 3378379 (1968-04-01), Shiner et al.
patent: 3413169 (1968-11-01), Krings et al.
patent: 3424126 (1969-01-01), Mahoney
patent: 4233341 (1980-11-01), Hammer et al.
patent: 4283426 (1981-08-01), Schenk

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