US Patent 7708980 Nonflammable propellant blend

Propellants comprising a combination of: (a) a liquid component that is soluble in the organic chemical-based material; (b) a soluble gas component that has a solubility of at least about 3% by weight in the organic chemical-based material; and, (c) a substantially insoluble gas component that has a solubility of less than about 3% by weight of the organic chemical-based material are effective for a wide range of airless applications. Adjustment of the ratios of (a) to (b) to (c) can lead to propellants that provide excellent spray patterns for a wide range of organic chemical-based formulations.