초록 ▼

A set of tropodegradable chemical additives to decrease the flammability of normally flammable refrigerants, foam blowing agents, cleaning solvents, aerosol propellants, and sterilants is disclosed. The additives are characterized by high efficiency and short atmospheric lifetimes. The latter proper

A set of tropodegradable chemical additives to decrease the flammability of normally flammable refrigerants, foam blowing agents, cleaning solvents, aerosol propellants, and sterilants is disclosed. The additives are characterized by high efficiency and short atmospheric lifetimes. The latter property is essential and results in a low ozone depletion potential (ODP) and a low global warming potential (GWP). The additives are bromine-containing alkenes, bromine-containing alcohols, bromine-containing ethers with at least one hydrogen atom (preferably adjacent to the oxygen atom), bromine-containing amines with at least one hydrogen atom (preferably adjacent to the nitrogen atom), bromine-containing carbonyl compounds, bromine-containing aromatics, and/or bromine-containing non-fluorinated alkanes.

대표청구항 ▼

[ I claim:] [1.]1. A method of reducing or eliminating the flammability of solvent used in metal, electronic, and precision cleaning and/or degreasing, and/or used in metals, electronic, and precision cleaning and/or degreasing, and/or used for dissolution of a solute, said method comprising the ste

[ I claim:] [1.]1. A method of reducing or eliminating the flammability of solvent used in metal, electronic, and precision cleaning and/or degreasing, and/or used in metals, electronic, and precision cleaning and/or degreasing, and/or used for dissolution of a solute, said method comprising the steps of:a) providing an additive comprising at least one compound selected from the group consisting of bromine-containing alkenes, bromine-containing alcohols, bromine-containing ethers with at least one hydrogen atom, bromine-containing carbonyl compounds, and bromine-containing aromatics, andb) mixing said additive with said solvent, wherein said solvent comprises at one component selected from the group of hydrocarbons, halocarbons, hydrochlorofluorocarbons (HCFs), hydrofluorocarbons (HFCs), terpenes, siloxanes, alcohols, ketones, esters, ethers, hydrofluoroethers (HFCs), monochlorotoluenes, benzotrifluoride, and hydrofluoropolyethers (HFPEs) to form a mixture containing between 0.1 and 99 percent by weight of said additive.