Compostible compositions and products

Details Compostible compositions and products Compostible compositions and products

1990-08-08

1992-05-26

Herbert, Jr., Thomas J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

4284782, 428484, 428492, B32B 2512

Patent

active

051166674

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.

REFERENCES:
patent: 1564498 (1925-12-01), Thomas
patent: 1979899 (1934-11-01), O'Brien et al.
patent: 3563244 (1971-02-01), Asaka
patent: 3616797 (1971-11-01), Champaigne, Jr. et al.
patent: 3654064 (1972-04-01), Laumann
patent: 3838692 (1974-10-01), Levesque
patent: 5037410 (1991-08-01), Zimmerman et al.

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