Compositions: coating or plastic – Coating or plastic compositions – Fog – frost or ice preventive
Patent
1988-07-22
1990-06-26
Morris, Theodore
Compositions: coating or plastic
Coating or plastic compositions
Fog, frost or ice preventive
106 36, 106487, C09K 912, C09K 314
Patent
active
049369156
ABSTRACT:
The composition according to the invention is based on the use of an inert porous material which can be natural, artificial or synthetic, granular in form, and weighing less than 1 kg/dm3 in bulk. The porous granules, e.g. of expanded clay or similar, are partially saturated to the extent of 20-30% of their weight, with active ingredients which lower the freezing point of water. The melting additives can be added in the pure state or diluted in water, and there is provision for the addition of anti-acid limiters in amounts of about 0.2% by weight of the melting additive. The advantages of the composition with respect to sand are the greater manageability and ease with which it can be spread on icy or snow-bound surfaces; the low specific weight which reduces the tendency to settle in road drains and sewers, and, compared to salt, the almost non-existent corrosive action on the ironwork found in both vehicles and streets. Ecologically, the composition does not damage the natural vegatative environment. The optimum results thus obtained are attributed to the synergetic effect of the inert material (activated grit) and the melting additive incorporated in it.
REFERENCES:
patent: Re32609 (1988-02-01), Gancy
patent: 2410910 (1946-11-01), Wait
patent: 4108669 (1978-08-01), Otrhalek et al.
patent: 4243415 (1981-01-01), Lowe, Jr.
patent: 4296207 (1981-10-01), Siegmund
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