Multichamber vapor deposition process

Details Multichamber vapor deposition process Multichamber vapor deposition process

1976-09-13

1978-03-28

Kaplan, Morris

Coating processes

Interior of hollow article coating

Coating by vapor, gas, mist, or smoke

427248R, 427400, B05D 722, C23C 1308

Patent

active

040815749

ABSTRACT:
An apparatus and process are provided for the safe, economic and pollution-free exposure of articles to reactive gaseous fluids to alter their surface characteristics. The articles are exposed to one or more fluids which are transferred back and forth from a reaction chamber to a holding chamber. As the fluids are transferred they pass through a trap designed to remove reaction-by-products without affecting valuable reactant fluids. Since the fluids can be transferred under vacuum and the overall reaction can take place at relatively low temperatures, the process provides a convenient and safe method for handling reactive fluids. The process is particularly useful for the halogenation, for example fluorination, of a variety of articles, such as plastic containers, aerosol bottles and films to improve their barrier resistance to solvents and gases.

REFERENCES:
patent: 1937256 (1933-11-01), Taylor
patent: 2222630 (1940-11-01), Pickford et al.
patent: 2749255 (1956-06-01), Nack et al.
patent: 2787688 (1957-04-01), Hall et al.
patent: 3233579 (1966-02-01), Arvidsson
patent: 3801360 (1974-04-01), Dahlgren

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