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US 5,911,981 AGranted
Surfactant blends for generating a stable wet foam
AssigneeRita Corporation
InventorsGerd H. Dahms, James W. Cook
Life of this patent
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Abstract
Surfactant blends that generate a stable spherical foam are disclosed. The surfactant blends contain a nonionic surfactant or an amphoteric surfactant as the principal foaming agent, and a sufficient amount of an acylate lactylate to enhance foam volume and provide a foam that remains in a spherical form for up to about forty minutes. A method of generating a long-lasting foam also is disclosed.
Claims16
A surfactant blend comprising:
- (a) about 75% to about 99.9% by weight of a primary foaming agent selected from the group consisting of a nonionic surfactant, an amphoteric surfactant, and mixtures thereof;
- and
- (b) an acyl lactylate, wherein the acyl lactylate is present in a sufficient amount to provide a foam that remains in a spherical form for about two minutes to about 40 minutes,
- and wherein the surfactant blend is free of a sulfated anionic surfactant.
1 more element
A method of generating a stable, wet foam comprising:
- (a) adding about 0.5% to about 15% by weight of a surfactant blend to an aqueous composition to provide an aqueous mixture, said surfactant blend comprising:
- (1) about 75% to about 99.9% by weight of a primary foaming agent selected from the group consisting of a nonionic surfactant, an amphoteric surfactant, and mixtures thereof, and
- (2) an acyl lactylate, wherein the acyl lactylate is present in a sufficient amount to provide a foam that remains in a spherical form for about two minutes to about 40 minutes,
- and wherein the surfactant blend is free of a sulfated anionic surfactant;
- and
- (b) forming bubbles from the aqueous mixture of step (a) to generate the stable foam.
3 more elements
Dependencies are inferred from the claim text.