Waste Disposal

Abstract

A gaseous-liquid mixture for use with a pressurized spray container, said mixture being capable of forming solid foam of polymer in open air, wherein said mixture comprises a polymer, a highly volatile non-poisonous organic solvent, and a propellant gas, said mixture being prepared from powder of said polymer dissolved in said solvent, such that said foam solidifies in open air in about one minute or less.

Description

FIELD OF THE INVENTION [0001] This invention relates to a device and method of disposal of solid waste, in particular pet excrements. BACKGROUND OF THE INVENTION [0002] Dogs are so important for human society. There is no doubt that dogs are the most important pets grown by people. Having dogs in private homes in modern, westernized society raises a serious problem: dogs have to be taken outside the homes several times a day for trips in the streets, in order to allow them to excrete and breath fresh air. Hygiene regulations in most of modern cities do not allow the owners of dogs to leave dogs excrements on the streets and even on park alleys and lawns. People who walk their dogs have to carry with them tools for collecting the dog excrements and put them in the garbage cans (e.g. the so called ‘pooper scooper’ in the US). Carrying such tools whenever taking a dog to a trip outside, makes such trip unpleasant and uncomfortable. [0003] One would suggest dogs owners to carry with the...

AI Technical Summary

Benefits of technology

[0015] The solidifying foam may contain antiseptic or germicide or deodorant additives; and / or it may contain surfactant additives to enhance forming of closed bubbles.

[0029] The mixtures are hardening in less than a minute at body temperature and in less than two minutes in the range 10-20° C. Such mixtures can be used in other areas besides disposing of waste. For example, coating of metal structures to prevent corrosion, electric insulation coatings, sealing of pipes and containers to prevent penetration (leakage) of gas, oils, water, chemicals or dust, electric conductor coatings to prevent electric shocks, etc.

Problems solved by technology

Having dogs in private homes in modern, westernized society raises a serious problem: dogs have to be taken outside the homes several times a day for trips in the streets, in order to allow them to excrete and breath fresh air.

Hygiene regulations in most of modern cities do not allow the owners of dogs to leave dogs excrements on the streets and even on park alleys and lawns.

Carrying such tools whenever taking a dog to a trip outside, makes such trip unpleasant and uncomfortable.

However the touch of the hand to the warm, humid dogs excrements even through a plastic bag is also very unpleasant and disgusting.

These devices facilitate the scooping and disposal procedure but do not remove the unpleasant sensation.

However, these polymers are formed in situ, by polymerization chemical reaction, which is known to take several minutes, even tens of minutes.

Similar and even more basic problems arise with other kinds of solid waste, which may be not only unpleasant but mechanically, biologically or chemically hazardous, when such waste is spilled in unprepared place or in unexpected way.

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