Patent ID: 8372418

Claim:
A mulch film, fumigation film, propagation film, propagation pot, nursery tray, or harvest tray comprising a polymer composite material with biocide functionality, comprising: a) a film consisting essentially of a polymer; and b) at least one coating layer, comprising at least one biocide active ingredient, wherein the biocide active ingredient comprises an organic biocide that can be emitted from the polymer composite material by diffusion and/or osmosis, wherein the biocide active ingredient is a molecular dispersion in the at least one coating layer, wherein the at least one coating layer comprises at least one binder and at least one carrier fluid, and wherein said binder is gelatin and a superabsorber selected from the group consisting of poly(acrylates), maleic anhydride copolymers, poly(vinyl sulfonates), poly(soduim acrylate-co-acrylic acid), poly(vinylsulfonic acid), and dispersions from block co-polymers of ethylene oxide with polyurethane.