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US 8,273,455 B2Granted
Method for the preparation of a granulate for the treatment of snow-covered and/or icy surfaces
AssigneeVille de La Chaux-de-Fonds
InventorsJean-Claude Turtschy, Joseph Mucaria
Life of this patent
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Abstract
The present invention relates to a method for the preparation of a granulate consisting of wood particles comprising 1 to 10% by weight with at least one water-soluble salt of an alkali metal or alkaline-earth metal.
Claims20
Method for the preparation of a granulate for the treatment of snow-covered and/or icy surfaces comprising the following stages:
- a) Providing a granulate consisting of wood particles;
- b) Preparation of a brine containing at least one water-soluble salt of an alkali metal or alkaline-earth metal the soluble salt of which is a chloride, nitrate, sulphate or acetate of an alkali metal or alkaline-earth metal;
- c) Impregnation of the granulate with the brine;
- d) Drying of the granulate.
1 more element
Dependencies are inferred from the claim text.