Environmentally friendly compositions having anti-icing, deicing or graffiti prevention properties

An environmentally friendly anti-icing or deicing composition, said composition being essentially continuous, single-phase, non-Newtonian pseudoplastic, and said composition comprises:

• (a) water in an amount in between about 30 and 86 percent by weight of the combined weight of water and freezing point depressant;
• (b) at least one non-toxic, water soluble hydroxy-aliphatic freezing point depressant selected from a group consisting of monohydric alcohols having from 2 to 5 carbon atoms;
• polyhydric alcohols having from 3 to 12 carbon atoms, monomethyl or monomethyl ethers of polyhydric alcohols having from 3 to 12 carbon atoms, and mixtures thereof;
• wherein the amount of said freezing point depressant contained is in between about 14 and 70 percent by weight of said combined water and freezing point depressant weights;
• and
• (c) a non-toxic hydrophilic exocellular heteropolysaccharide thickener, which is present in an amount in between 0.01 and 30 percent by weight of the total composition, and said thickener forms an aqueous colloid which when combined with components (a) and (b) provides a continuous liquid composition, wherein said liquid composition is a homogenous, single phase, and said liquid composition when formed has a high near-static initial viscosity above about 20,000 cPs when measured using a viscosity measuring devise, and the formed liquid after being subjected to at least one external dynamic strain at a rate of at least 20 sec−1 for at least 1.0 minute, has a second, lower viscosity below about 1,000 cPs as measured using said measuring device under said specified conditions, and upon removal of said external dynamic strain rate, within 10 minutes, said liquid composition has a third viscosity value of within about 99.5% of said initial viscosity when said third viscosity is measured on said viscosity measuring device at said specified conditions, with the proviso that the composition does not include a water soluble liquid and with the proviso that the composition is not an emulsion.