Patent ID: 6787065
Filing Date: 2004-09-07
Classification: B32B,B65D,C08K,C08L,C23F

Abstract:
A packaging article, comprising a premix and a component, wherein the component is selected from the group consisting of at least one polymer and at least one filler, wherein:said at least one polymer represents at least 50% by weight of the packaging article and is selected from the group consisting of: polyolefins, such as polyethylene, polypropylene, polybutene and copolymers thereof with one or more unsaturated monomers such as vinyl acetate, acrylic acid and esters thereof formed from short chain alcohols; polyvinyl chloride and copolymers thereof, acrylic copolymers and derivatives thereof; polyamides, polystyrenes, polycarbonates, polyesters, polyurethanes, rubbers such as natural rubber, styrene-butadiene and polychloroprene; said at least one filler is selected from the group consisting of mineral fillers such as chalks and carbonates, talcs, clays and silicas; and, said premix comprises volatile corrosion inhibitors and at least one structuring agent which is a mineral wax or a polyethylene wax selected from the group consisting of a solid or pasty substance and a liquid substance being capable of forming, when mixed with a mineral filler, a pasty or solid substance; said solid or pasty substance being selected from the group consisting of solid, pasty, aliphatic and resinous compounds with a low melting point of between 40Â° C. and 110Â° C., the amount of structuring agent being effective to reduce the release of said volatile corrosion inhibitors when said packaging article or premix is formulated as compared to formulating premix in the absence of the structuring agent.