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US 7,717,997 B2Granted
Integral water resistant fibre-cement
AssigneeJames Hardie Technology Limited
InventorSimon Trevethick
Life of this patent
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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.
Claims8
The process for producing a water-resistant fibre-cement product, the process including using a terpolymer derived from ethylene, vinyl chloride, or vinyl laurate, in forming a fibre cement product wherein the terpolymer is integrally associated with the fibre-cement, and curing the product.
Dependencies are inferred from the claim text.