Filter media including silicone and/or wax additive(s)

Details Filter media including silicone and/or wax additive(s) Filter media including silicone and/or wax additive(s)

2008-08-07

2011-11-15

Smith, Duane (Department: 1776)

Gas separation: processes

Filtering

Coated or chemically treated filter

C055S524000, C055S527000, C055S528000

Reexamination Certificate

active

08057583

ABSTRACT:
A method of improving filtration efficiency of a fibrous nonwoven filter media comprises providing a filter media and incorporating in the filter media one or more additives selected from the group consisting of silicone additives, wax additives, and mixtures thereof. The filter media comprises glass fibers, polymer fibers, and optionally binder. Inclusion of silicone and/or wax additive(s) in a filter media has surprisingly been found to increase filtration efficiency, for example, by 10-15%.

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