Air freshener device comprising a specific liquid composition
AssigneeFirmenich SA
InventorsNicholas O'Leary, Florin Joseph Vlad
Life of this patent
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Abstract
The present invention relates to air freshener devices that have water-based liquid compositions, preferably clear liquids, for providing an improved rate of emanation of perfume ingredients from the air freshener emanating surface and allowing the use of fragrance materials with a wide range of characteristics, namely a wide range of clogP values. The air fresheners contain liquid perfume compositions which include: i) 0.5 to 40% w/w of a perfume; ii) an oil-solubilizing system containing one or more surfactants of the non-ionic, anionic, cationic, amphoteric type, or a mixture thereof; iii) a solubilizing-aid; and iv) at least 40% weight of water; with the weight percentages being relative to the total weight of liquid composition.
Claims14
An air freshener device for perfuming or freshening the surroundings thereof, which comprises:
- A) a vessel carrying a liquid composition which contains:
- 1) 0.5 to 40% w/w of a perfume;
- 2) an oil-solubilizing system containing one or more surfactants of the non-ionic, anionic, cationic or amphoteric type, or a mixture thereof;
- and
- 3) at least 40% weight of water;
- with the weight percentages being relative to the total weight of liquid composition;
- B) an emanating surface capable of providing for diffusion of said liquid composition;
- C) a wick for carrying the liquid composition from the container vessel to the emanating surface;
- and
- D) optionally, removable means for preventing diffusion of the liquid composition prior to the activation of the air freshener device by a user thereof;
- wherein said liquid composition further comprises a solubilizing-aid ingredient of pyrrolidone carboxylic acid sodium salt or a mixture of pyrrolidone carboxylic acid sodium salt with one or more salts selected from the group consisting of sodium benzoate, sodium L-lactate, calcium L-ascorbate, sodium bicarbonate, and di-sodium succinate.
An air freshener device for perfuming or freshening the surroundings thereof, which comprises:
- A) a vessel carrying a liquid composition which contains:
- 1) 0.5 to 40% w/w of a perfume;
- 2) an oil-solubilizing system containing one or more surfactants of the non-ionic, anionic, cationic or amphoteric type, or a mixture thereof, wherein the ratio of oil-solubilizing system to perfume is below 1;
- 2) 0.01 to 10% w/w of a solubilizing aid ingredient of pyrrolidone carboxylic acid sodium salt or a mixture of pyrrolidone carboxylic acid sodium salt with one or more salts selected from the group consisting of sodium benzoate, sodium L-lactate, calcium L-ascorbate, sodium bicarbonate, and di-sodium succinate;
- and
- 3) at least 40% weight of water;
- with the weight percentages being relative to the total weight of liquid composition;
- B) an emanating surface capable of providing for diffusion of said liquid composition;
- C) a wick for carrying the liquid composition from the container vessel to the emanating surface;
- and
- D) optionally, removable means for preventing diffusion of the liquid composition prior to the activation of the air freshener device by a user thereof.
Dependencies are inferred from the claim text.