Sprayable composition
AssigneeNewastecon, Inc.
InventorsThomas Nachtman, John Hull, Patrick O'Shea
Life of this patent
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Abstract
A sprayable composition and a method of protecting material with the composition is disclosed. The composition comprises a polymer such as hydroxyethyl cellulose, clay, and water to provide a cover layer which, after spraying, is tough, flexible and water-repellent. Other materials such as shredded paper and gypsum can be used in the cover layer. The composition is effective as a cover layer over material such as soil, refuse at a dump site, or grain in a stockpile.
Claims34
A sprayable composition for forming a cover layer over a selected material, the composition having protective layer forming ingredients, in approximate pounds, consisting essentially of:
- (a) 5 to 50 pounds of a water soluble cellulosic polymer that, after spraying, becomes water repellent;
- (b) 25 to 200 pounds of a clay;
- (c) 10 to 100 pounds of fibrous material;
- and
- (d) 2000 to 8000 pounds of water as a carrier for the polymer, clay, and the fibrous material, the composition, after spraying, becoming water-resistant, tough and flexible.
A sprayable composition for forming a protective cover layer over material, the composition having protective layer forming ingredients, in approximate % by weight, consisting essentially of:
- (a) about 0.3 to 1.8% of a nonionic water soluble polymer of cellulose that is hydroxyethyl cellulose having a viscosity of about 100 to 500 (Brookfield--#3 spindle);
- (b) about 2 to 6% of bentonite;
- (c) about 2 to 4% of cellulosic fibrous material, the average fiber length being less than about 1/2 inch and the diameter being about less than about 1/4 inch;
- (d) about 0.5 to 15.0% of gypsum;
- and
- (e) about 80 to 95% of water.
A sprayable composition having protective layer forming ingredients, in approximate percent by weight, consisting essentially of:
- ______________________________________ Ingredient Percent ______________________________________ Cellulosic Polymer 0.68-0.77 Bentonite 2.32-5.41 Gypsum 0.47-1.10 Dye less than 0.01 Surfactant less than 0.01 Paper 1.00-2.00 Wood 0.25-1.00 Water 80.00-95.000. ______________________________________
A method for forming a cover layer over material in a dumpsite or stockpile, the method comprising:
- (A) mixing protective layer forming ingredients, in aproximate pounds, consisting essentially of:
- (a) 5 to 50 pounds of water soluble cellulosic polymer;
- (b) 25 to 200 pounds of a clay;
- (c) 10 to 100 pounds of fibrous material;
- and
- (d) 2000 to 8000 pounds of water, to form a composition;
- (B) spraying the composition at ambient temperature over the material to form a layer of thickness sufficient to cover and protect the top of the material for a period of time;
- and
- (C) allowing the sprayed composition to set up to provide a water-repellent, tough and flexible layer.
A method of using a sprayable composition having protective cover forming ingredients for forming a cover layer over a selected material, the method comprising:
- (A) mixing the cover forming ingredients, in approximate pounds, consisting essentially of:
- (a) 5 to 50 pounds of water soluble cellulosic polymer;
- (b) 25 to 200 pounds of clay;
- (c) 10 to 100 pounds of fibrous material;
- and
- (d) 2000 to 8000 pounds of water;
- and
- (B) spraying the composition to form a water-resistant and flexible layer over the material.
Dependencies are inferred from the claim text.