Integral water resistant fibre-cement
AssigneeJames Hardie International Finance B.V.
InventorSimon Trevethick
Life of this patent
Estimating the term…
Abstract
A method of producing a water resistant fiber-cement product. The water repelling agent can be added or applied to the fiber-cement or indeed the material forming the fiber cement at a number of different stages in the process. The resultant material has increased water impermeability over conventional fiber-cement products.
Claims16
A water resistant fibre-cement product, wherein the fibre-cement has incorporated therein a water repelling agent that is integrally associated with the fibre-cement product, wherein the water repelling agent is a long chain terpolymer derived from a polymer selected from the group consisting of ethylene, vinyl chloride, and vinyl laurate and combinations thereof, the terpolymer incorporated in an amount between 0.5% to 10% by weight of the total materials used to produce the fibre-cement product.
A method of producing a water resistant fibre-cement product, the method including
- incorporating a water repelling agent with a fibre-cement material, wherein the water repelling agent is a long chain terpolymer derived from a polymer selected from the group consisting of ethylene, vinyl chloride, or vinyl laurate and combinations thereof, the terpolymer incorporated in an amount between 0.5% to 10% by weight of the total materials used to produce the fibre-cement material;
- forming a fibre-cement product, whereby the water repelling agent is integrally associated with the fibre-cement.
Dependencies are inferred from the claim text.