Back to results
US 6,639,004 B2Granted
Method for making odor sorbing packaging material
AssigneeMead Westvaco Corporation
InventorsLadislav Falat, James R. Miller, Mark E. Schiek, David R. Walker
Life of this patent
Estimating the term…
Abstract
An odor sorbing packaging material is prepared by applying to at least one surface of a flexible substrate an odor absorbing coating containing an effective concentration of activated carbon. The packaging material may be converted into packages, bags, pouches, liner members, wrappers or the like for packaging products and other materials that generate objectionable odors.
Claims5
A material comprising:
- a flexible polymeric film with a first coating comprising an aqueous binder with less than 50% activated carbon by total weight of the first coating applied to at least one side of said polymeric film and a second coating comprising an aqueous binder with about 80% to about 95% activated carbon by total weight of the second coating applied to said first coating.
Dependencies are inferred from the claim text.