Eastman-kodak Company

Tomas Gerard Patrick McHugh

Ronald S Cok

Alan Richard Priebe

John Joseph Scheible

Mridula Nair

Mary Christine Brick

A foamable aqueous composition can be used to form foamed, opacifying elements with one or more dry foamed layers. These compositions generally contain: (a) 0.5 to 20 weight % of porous particles comprising a continuous polymeric phase and discrete pores dispersed within the continuous polymeric phase. The porous particles have a mode particle size of 2 to 50 &#x3bc;m; (b) at least 20 weight % of a binder material; (c) 0.1 to 30 weight % of a combination of various additives including dispersants, plasticizers, inorganic or organic pigments and dyes, flame retardants, biocides, fungicides, optical brighteners, tinting colorants, metal flakes, and inorganic or organic fillers; (d) water; and (e) at least 0.001 weight % of an opacifying colorant different from (c). The foamable aqueous composition is suitably aerated, disposed on a porous substrate, dried, and crushed on the porous substrate to form a foamed, opacifying element.

Foamed, opacifying elements

A method of making a colored biocidal multi-layer structure includes providing a first layer of a first color and locating a biocidal second layer on or over the first layer. The biocidal second layer has a second color different from the first color.

Making colored biocidal multi-layer structure

A method of using a colored biocidal multi-layer structure includes locating the colored biocidal multi-layer structure on a surface, observing the colored biocidal multi-layer structure over time, and observing a change in the color in at least a portion of the colored biocidal multi-layer structure, indicating that the colored biocidal multi-layer structure is less effective. The colored biocidal multi-layer structure includes a first layer of a first color, and a biocidal second layer on or over the first layer, the biocidal second layer of a second color different from the first color.

Growing community of inventors

Webster, NY, United States of America

Tomas Gerard Patrick McHugh