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US 6,306,806 B1Granted
Dual chamber cleansing system comprising water-in-oil emulsion as benefit stripe
AssigneeUnilever Home & Personal Care USA, Division of Conopco, Inc.
InventorsDale St. Lewis, Helen Elizabeth Knaggs
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Abstract
The invention provides an at least dual compartment container containing at least one surfactant stripe and at least one water-in-oil emulsion stripe. By dispensing a water-in-oil emulsion stripe, greater deposition, particularly deposition of water soluble benefit agent (e.g., glycolic acid) is achieved than believed possible.
Claims14
An aqueous liquid cleansing and moisturizing composition comprising:
- (A) 10 to 99.9% by wt. of a surfactant stripe comprising 1 to 75% by wt. of a surface active agent selected from the group consisting of anionic, nonionic, zwitterionic and cationic surface active agents, soap and mixtures thereof;
- and
- (B) 0.1 to 99% by wt. of a benefit agent stripe comprising a water-in-oil emulsion where said emulsion comprises:
- (1) 1 to 99% of an internal aqueous phase containing water, optional solute and optional surfactant;
- (2) 0.5 to 99% at an oil phase surrounding said internal aqueous phase;
- (3) 0.1 to 20% of a surfactant emulsifier having HLB of below 10;
- and
- (4) optionally, a topically effective amount of a water-soluble or partially water-soluble benefit agent in the internal aqueous phase.
5 more elements
Dependencies are inferred from the claim text.