Nonflammable propellant blend
AssigneeIllinois Tool Works Inc.
InventorsMichael Atwater, Donald Williams, Frederick Walnut, Keith Begin
Life of this patent
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Abstract
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.
Claims53
A propellant blend for delivering an organic chemical-based material, the blend comprising:
- (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.
A spray system comprising:
- a canister;
- an organic material to be sprayed, the organic material disposed within the canister;
- and,
- a propellant blend disposed within the canister, the blend comprising:
- (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.
A sprayable adhesive blend comprising:
- an adhesive composition;
- and
- a propellant blend disposed within the canister, the blend comprising:
- (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.
A method for delivering an organic material, the method comprising:
- charging the organic material into a canister;
- charging a propellant blend into the canister, wherein the propellant blend comprises:
- (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;
- allowing the propellant blend to develop an internal pressure in the canister that is greater than atmospheric pressure;
- and,
- discharging the organic material from the canister by means of the internal pressure developed by the propellant blend.
Dependencies are inferred from the claim text.