Patent ID: 7914888

Claim:
An adhesive labelstock comprising: (A) a polymer film substrate comprising a terpolymer prepared from a mixture comprising (i) an olefin, (ii) at least one copolymerizable comonomer comprising ethylenically unsaturated organic acids or esters, vinyl esters of saturated carboxylic acids, and mixtures of two or more thereof, and (iii) carbon monoxide, wherein the polymer film substrate has a moisture vapor transmission rate that permits sufficient moisture to enter the film substrate to generate acceptable levels of chlorine dioxide and said substrate has a first surface and a second surface, and (B) an adhesive layer underlying the second surface of the substrate, wherein the substrate, or the adhesive layer, or both the substrate and the adhesive layer contain an antimicrobial composition which comprises at least one metal chlorite and at least one hydrophilic material capable of reacting with the metal chlorite when exposed to water.