Aldehyde removal

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

Reexamination Certificate

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Details

C526S318000, C526S317100, C560S178000, C560S176000, C131S334000, C131S345000, C131S332000, C131S340000

Reexamination Certificate

active

07855261

ABSTRACT:
Disclosed are filter elements constructed of a filter support material coated with an acetoacetate-functional polymeric composition that reacts with and removes aldehydes, especially formaldehyde, present in gases such as air. Also disclosed are methods for the removal of aldehydes utilizing the coated filter support materials.

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