Method and apparatus for forming an extremely thin film on the s

Details Method and apparatus for forming an extremely thin film on the s Method and apparatus for forming an extremely thin film on the s

1982-08-30

1986-08-12

Beck, Shrive P.

Coating processes

Spraying

Moving the base

427 27, 427 32, 427428, 118227, 118244, 118258, B05D 102, B05D 104

Patent

active

046055746

ABSTRACT:
The present invention relates to a method for forming a uniform, extremely thin film on the surface of plastics molded articles, films, sheets, synthetic paper, fibers, metal, and other objects, the film containing an anti-static agent, anti-fogging agent, anti-corrosive agent, mildewproofing agent, and the like. According to the method of the present invention, a homogenous solution or emulsion is prepared by dissolving a surfactant and agents in a solvent such as water with the aid of ultrasonic waves, and the solution is made into aerosol of fine particles by means of cavitation. The aerosol is brought into contact with an object, whereby the fine particles of aerosol are deposited on the object and a thin film of the solution is formed on the surface of the object due to the difference in surface tension between the surfactant and the object. After evaporation of the solvent, the agents are left on the surface of the object in the form of an extremely thin film. The present invention also relates to apparatuses for producing such aerosol, selecting aerosol particles, and bringing the aerosol into contact with the surface of an object.

REFERENCES:
patent: 1967751 (1934-07-01), Goerlich
patent: 3546017 (1970-12-01), Pendleton et al.
patent: 3649358 (1972-03-01), Johnston
patent: 3795443 (1974-03-01), Heine-Geldern et al.
patent: 4218533 (1980-08-01), Fuchigami et al.
patent: 4285296 (1981-08-01), Scholes
patent: 4309456 (1982-01-01), Lock

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