Process and product for removing ice or snow from a traffic surf

Compositions – Frost-preventing – ice-thawing – thermostatic – thermophoric,...

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106 13, C09K 318

Patent

active

054297630

ABSTRACT:
According to the invention, a melting composition based on alkali chloride and water is spread on the traffic surface, the melting composition being a mixture containing a small proportion of an additive which increases the thixotropic properties of the mixture without substantially modifying its melting properties. The additive is, for example, hydrophilic pyrogenated colloidal silica, or a hydrated aluminum and/or magnesium silicate, in powder form, of the bentonite or montmorillonite type. The viscosity of the melting composition is thereby increased and simultaneously the speed of evacuation is decreased. The process finds application in the maintenance of pavements during winter.

REFERENCES:
patent: 4338359 (1982-07-01), Kestner
patent: 5135674 (1992-08-01), Kuhajek et al.
patent: 5158604 (1992-10-01), Morgan et al.

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