Importance

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Abstract

Compostible compositions in the form of homogeneous mixtures containing 20-80% by weight unvulcanized, uncured C4-C6 alkadiene elastomer, e.g., natural rubber, 5-20% of modifier, e.g., casein, dextrose, starch or mixtures thereof, 1-40% filler, e.g., titanium dioxide or fibrous clay, 0-30% wax, e.g., carnauba wax, 0-40% styrene resin, e.g., polystyrene, 0-10% additive, e.g., bis-steramide, and 0-20% yeast are disclosed. Preferably such compositions are prepared as aqueous dispersions that can be converted by conventional casting procedures into thin sheets, e.g., about 1 to 10 mils, having useful tensile strength, elongation, flexibility and moisture barrier properties.

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First Claim