Process for preventing formation of black ice on roads by applyi

Details Process for preventing formation of black ice on roads by applyi Process for preventing formation of black ice on roads by applyi

1982-08-03

1984-02-28

Childs, Sadie L.

Coating processes

Coating pavement or the earth

106 13, 252 70, B05C 116, B05D 510

Patent

active

044341903

ABSTRACT:
A road surface has fixed thereon a salt which lowers the freezing point of water by means of an aqueous fixation composition which comprises a mixture of an adhesion-promoting agent formed by an aqueous dispersion of a film-forming polymer or copolymer and a water-soluble hydrophobic agent which, in air, becomes insoluble in water. The proportion by weight of hydrophobic agent relatively to the dry extract of the adhesion-promoting agent is from 5 to 25%. The fixation composition is used in a proportion such that all the adhesion-promoting agent and the hydrophobic agent represents, in dry weight, from 10 to 120% of the weight of the salt. The aqueous fixation composition may in addition possibly comprise a foam-inhibiting agent and/or a second hydrophobic agent.

REFERENCES:
patent: 4012537 (1977-03-01), Dubois
patent: 4094686 (1978-06-01), Dubois

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