Filter material and process for producing same

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

Reexamination Certificate

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Details

C156S062200, C156S180000, C156S273700, C156S275500, C055SDIG007, C264S128000, C264SDIG048, C427S434200

Reexamination Certificate

active

07972458

ABSTRACT:
A filter material and process for producing a filter material, which may be used as a vacuum cleaner bag or a household air filter, are provided. Embodiments of the filter material comprise a porous substrate comprising a plurality of recycled fibers bound together by an adhesive. Embodiments of the process comprise arranging a plurality of fibers to form a layer; providing an amount of an adhesive to the fibers such that when the adhesive has cured, the layer is porous; and curing the adhesive.

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