Adherent coating for entrapping contamination particles in gas-i

Details Adherent coating for entrapping contamination particles in gas-i Adherent coating for entrapping contamination particles in gas-i

1978-07-27

1980-08-26

Caroff, Marc L.

Cleaning and liquid contact with solids

Processes

Including forming a solidified or hardened coating for cleaning

134 22R, 174 14R, 427335, B08B 700, B08B 900, B08B 1500

Patent

active

042193664

ABSTRACT:
A tacky or sticky coating is provided on selected surface areas inside compressed gas-insulated systems to trap conducting and semiconducting particles which, if allowed to remain free, can promote breakdown between metallic parts or electrodes maintained at different potentials, or which may initiate tracking and flashover along insulating surfaces. The initially hard, dry coating is comprised of a binder component and an active component. The binder component is chemically inert to both the insulating gas within the apparatus and a solvent vapor, while the active component is capable of interacting with the solvent vapor to become tacky. The insulating coating, after exposure to the solvent vapor, becomes tacky on the surface to thereon entrap contamination particles, but the addition of the binder component prevents the coating from sagging but instead maintains its spatial position on the selected surface areas.

REFERENCES:
patent: 3327017 (1967-06-01), Huang et al.
patent: 3438931 (1969-04-01), Mitchell et al.
patent: 3765941 (1973-10-01), Gordon
patent: 3911937 (1975-10-01), Sletten et al.

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