US Patent 7141518 - Charged Nanoparticle Fabrics
http://www.freepatentsonline.com/7141518.pdf
This patent proposes the use of charged nanoparticle coatings on fabrics and other substrates to facilitate odor absorption and chemical removal. Claim 1 reads:
1. A fibrous substrate comprising: nanoparticles having a surface area of at least about 50 square meters per gram, wherein the nanoparticles are modified with a metal ion and have a negative zeta potential prior to modification with the metal ion, and wherein the zeta potential of the modified nanoparticles is from about -5 millivolts to about -15 millivolts and is greater than the zeta potential of the nanoparticles prior to modification; and a binder that durably adheres the modified nanoparticles to the substrate.
This patent proposes the use of charged nanoparticle coatings on fabrics and other substrates to facilitate odor absorption and chemical removal. Claim 1 reads:
1. A fibrous substrate comprising: nanoparticles having a surface area of at least about 50 square meters per gram, wherein the nanoparticles are modified with a metal ion and have a negative zeta potential prior to modification with the metal ion, and wherein the zeta potential of the modified nanoparticles is from about -5 millivolts to about -15 millivolts and is greater than the zeta potential of the nanoparticles prior to modification; and a binder that durably adheres the modified nanoparticles to the substrate.
posted by blaisemouttet at 9:05 PM
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