Patent ID: 7306777

Claim:
An antimicrobial composition comprising an antimicrobial compound and a polyethylene-polyvinylalcohol copolymer; wherein the antimicrobial compound is represented by the general formula: M(H l−x−y Na x Ag y PO 4 ) 2 ·H 2 O wherein M is selected from Ti and Zr, and x and y are greater than zero and less than one; wherein the polyvinylalcohol content is from 20 to 80% by weight of the polyethylene-polyvinylalcohol copolymer; wherein the average molecular weight of the polyethylene-polyvinylalcohol copolymer is 100,000 to 1,000,000; and wherein the water permeability coefficient of the copolymer is from 5000 to 15000 [(cm 3 cm)/(cm 2 sec/Pa)]×10 13 .