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US 5,635,469 AGranted
Foaming cleansing products
AssigneeThe Procter & Gamble Company
InventorsTimothy J. Fowler, Frederick W. Woodin, Jr., George E. Deckner, Anil J. Gupte, Tatsuya Taniguchi, Dimitris I. Collias
Life of this patent
Estimating the term…
Abstract
The present invention relates to foam producing products useful for personal cleansing. These products comprise a foamable liquid composition and a foam-producing foam dispenser. These products provide a stable homogeneous foam and good lathering and cleansing characteristics. These products are very mild to the skin and are useful for moisturizing the skin and for delivering a wide variety of active ingredients to the skin.
Claims35
A foam producing cleansing product comprising:
- (A) a foamable cleansing liquid composition comprising
- (i) from about 0.1% to about 20% of a surfactant selected from the group consisting of amphoteric surfactants, nonionic surfactants, and mixtures thereof,
- (ii) from about 0.1% to about 10% of a water soluble cationic or nonionic polymer,
- (iii) from about 0.1% to about 25% of a humectant,
- (iv) from about 0.05% to about 10% of an emollient, and
- (v) from about 35% to about 99.65% water,
- wherein said liquid composition has a viscosity of from about 1 cps to about 300 cps;
- and
- (B) a foam dispenser for dispensing a final foam from an incoming intermediate foam, said dispenser comprising a reservoir to contain said liquid composition, a manually-actuated means for generating a volume of a mixture of said liquid composition and a gas, and a foam dispensing nozzle sealably attached in fluid communication with said manually-actuated means wherein the improvement comprises a nozzle comprising:
- (i) an inlet conduit for receiving an intermediate foam consisting of a mixture of a liquid composition and a gas at a volumetric flow rate sufficiently high that it will produce an average incoming intermediate foam velocity which is too great to permit effective bubble bursting to put said foam in a final foam as said foam passes through at least one downstream foam refining means having a plurality of passageways therethrough;
- and
- (ii) a velocity decreasing means placing said inlet conduit in fluid communication with a foam refining means, wherein said velocity decreasing means lowers the average velocity of said intermediate foam so when said foam passes through said foam refining means it is at a velocity no greater than 300 cm/sec.
9 more elements
A foam producing cleansing product comprising:
- (A) a foamable cleansing liquid composition comprising
- (i) from about 0.1% to about 20% of a surfactant selected from the group consisting of amphoteric surfactants, nonionic surfactants, and mixtures thereof,
- (ii) from about 0.1% to about 10% of a water soluble cationic or nonionic polymer,
- (iii) from about 0.1% to about 25% of a humectant,
- (iv) from about 0.05% to about 10% of an emollient, and
- (v) from about 35% to about 99.65% water,
- wherein said liquid composition has a viscosity of from about 1 cps to about 300 cps;
- and
- (B) a manually-actuable foam dispenser for producing and dispensing a high quality final foam from a foamable liquid and a gas, said foam being comprised of bubbles having a number-average diameter of about D.sub.1, said dispenser comprising:
- (i) a manually-actuable means for mixing a quantity of said foamable liquid with a quantity of said gas to produce an intermediate foam which comprises bubbles having a number-average diameter greater than about D.sub.1 and a wider bubble size distribution than the final foam, at a volumetric flow rate Q which is dependent upon the speed of actuation of said manually-actuable means by the user;
- and
- (ii) a foam dispensing nozzle comprising a conduit in fluid communication with said manually-actuable means for receiving the intermediate foam from said manually-actuable means;
- and at least one foam refining means located in said conduit, said foam refining means comprising a plurality of substantially uniformly-sized and evenly distributed passageways;
- wherein said intermediate foam passes through said passageways at a velocity, V.sub.2, failing within the range of a minimum velocity, V.sub.2,min, and a maximum velocity, V.sub.2,max, wherein the conditions needed to cause bursting of said bubbles having a diameter larger than about D.sub.1 are met.
11 more elements
Dependencies are inferred from the claim text.