Sprayable composition
AssigneeNew Waste Concepts, Inc.
InventorsThomas J. 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.
Claims41
A sprayable composition for forming a cover layer over a selected material, the composition comprising:
- (a) 5 to 50 pounds of a water soluble cellulosic polymer that, after spraying, becomes water resistant;
- (b) 25 to 200 pounds of a clay;
- (c) 10 to 100 pounds of fibrous material;
- (d) 5 to 100 pounds of gypsum;
- and
- (e) 2000 to 8000 pounds of water as a carrier for the polymer, the clay, the fibrous material and the gypsum;
- the composition, after spraying, becoming water-resistant, tough and flexible.
A process of forming a cover layer over a selected material, the process comprising the steps of:
- (A) mixing protective layer forming ingredients to form a composition consisting essentially of:
- (a) 5 to 50 pounds of a water soluble cellulosic polymer;
- (b) 25 to 200 pounds of a clay;
- (c) 10 to 100 pounds of fibrous material;
- (d) 5 to 100 pounds of gypsum;
- and
- (e) 2000 to 8000 pounds of water as a carrier for the polymer, the clay, fibrous material and gypsum;
- (B) spraying the composition over the selected material to form a layer;
- (C) protecting the material by allowing the layer to set up and form a water-resistant, tough and flexible layer.
A sprayable composition having protective layer covering ingredients, in approximate percent by weight, consisting essentially of:
- ______________________________________ Ingredients Percent by Weight ______________________________________ (a) Cellulosic Polymer 0.3-1.8% (b) Clay 2.0-6.0% (c) Cellulosic Fibers 1.25-4.0% (d) Gypsum 0.47-15.0% (e) Water 80-95%. ______________________________________
A method for forming a temporary cover layer over refuse, the method comprising:
- (a) mixing a sprayable composition which includes a water soluble polymer, clay, a binder material and water as a carrier for the polymer, clay and binder material;
- (b) spraying the composition over refuse;
- and
- (c) allowing the sprayed composition to set up to provide a water-resistant, tough and flexible cover layer over the refuse.
A method for providing a temporary protective cover layer over a hazardous material or refuse at a landfill, the method comprising:
- (a) spraying a thick, viscous fibrous slurry at ambient temperature onto the hazardous material or refuse to form a cover layer over the top thereof;
- and
- (b) allowing the layer to set up to form a protective water-resistant, tough and flexible cover layer.
Dependencies are inferred from the claim text.