Methods for coating acoustical surfaces

Details Methods for coating acoustical surfaces Methods for coating acoustical surfaces

1984-05-29

1985-09-10

Lawrence, Evan K.

Coating processes

Foraminous product produced

427299, 427322, 427324, 427384, 427396, 427421, B05D 500, B05D 724

Patent

active

045406057

ABSTRACT:
Methods for coating acoustical surfaces without substantially clogging the pores and reducing the sound absorption characteristics. The compositions applied to the surfaces of the acoustical materials in the coating method comprise an aqueous mixture containing a disinfectant, a pigment such as titanium dioxide, a quaternary ammonium compound of the following formula ##STR1## wherein R.sub.1 is an aliphatic hydrocarbon containing from 16 to 20 carbon atoms, R.sub.2 is an alkyl group containing from 1 to 3 carbon atoms, and R.sub.3 is selected from the group consisting of R.sub.1 and R.sub.2, and an air freshener.

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