Process and device for coating a substrate with a pulverulent pr

Details Process and device for coating a substrate with a pulverulent pr Process and device for coating a substrate with a pulverulent pr

1989-02-01

1990-06-12

Beck, Shrive

Coating processes

Optical element produced

Transparent base

65 601, 65 6051, 118308, 118310, 118312, 427180, B05D 112

Patent

active

049332112

ABSTRACT:
The invention relates to coating a heated substrate, particularly glass, by a process according to which a distribution nozzle ending in a slot, sprays a gas stream mixed with a pulverulent or powder product, which decomposes in heat, onto a heated substrate for contact therewith to form a thin coating layer thereupon. The coating zone in the vicinity of the main stream of gas-entrained powder coming from the nozzle is cooled to prevent premature decomposition and to directly remove pulverulent products not immediately deposited upon the substrate. Also, a device for carrying out the novel process is disclosed herein. The invention makes it possible to produce a coated glass substrate which is essentially free of the problem of coating fogging.

REFERENCES:
patent: 4325988 (1982-04-01), Wagner
patent: 4349369 (1982-09-01), Van Laethem
patent: 4349371 (1982-09-01), Van Laethem
patent: 4397259 (1983-08-01), Kanda et al.
patent: 4397671 (1983-08-01), Vong
patent: 4401695 (1983-08-01), Sopko
patent: 4705701 (1987-11-01), Akhtor
H. Komiyama, "Rapid Growth of AlN. Films by Particle-Precipitation Aided Chemical Vapor Deposition", Japanese Journal of Applied Physics, vol 24, No. 10, pp. L795-L797, (1985).

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