DELIVERY PARTICLES
First Claim
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1. A composition comprising an adjunct ingredient and a population of low permeability microcapsule particles comprising an oil soluble or dispersible core material and a wall material at least partially surrounding the core material, the microcapsule wall material comprising:
- the reaction product of a first composition in the presence of a second composition comprising an anionic emulsifier, the first composition comprising a reaction product of i) an oil soluble or dispersible amine with ii) a multifunctional acrylate or methacrylate monomer or oligomer, an oil soluble acid and an initiator, the anionic emulsifier comprising a water soluble or water dispersible acrylic acid alkyl acid copolymer, an alkali or alkali salt, and optionally a water phase initiator, whereby the reaction product of the first composition and second composition results in the formation of a population of microcapsules having a microcapsule wall of low permeance to the core material;
said composition being a consumer product or even, in one aspect, a cleaning composition, fabric care composition and/or a personal care composition.
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Abstract
The present application relates to encapsulated benefit agents, compositions comprising such encapsulated benefit agents and processes for making and using compositions comprising such encapsulated benefit agents. Such encapsulated benefit agents eliminate or minimize one or more of the drawbacks of current encapsulated benefit agents and thus provide formulators with additional perfume delivery opportunities.
98 Citations
28 Claims
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1. A composition comprising an adjunct ingredient and a population of low permeability microcapsule particles comprising an oil soluble or dispersible core material and a wall material at least partially surrounding the core material, the microcapsule wall material comprising:
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the reaction product of a first composition in the presence of a second composition comprising an anionic emulsifier, the first composition comprising a reaction product of i) an oil soluble or dispersible amine with ii) a multifunctional acrylate or methacrylate monomer or oligomer, an oil soluble acid and an initiator, the anionic emulsifier comprising a water soluble or water dispersible acrylic acid alkyl acid copolymer, an alkali or alkali salt, and optionally a water phase initiator, whereby the reaction product of the first composition and second composition results in the formation of a population of microcapsules having a microcapsule wall of low permeance to the core material; said composition being a consumer product or even, in one aspect, a cleaning composition, fabric care composition and/or a personal care composition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 27, 28)
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21. A process for producing a composition, said composition being a consumer product, or even, in one aspect, a cleaning composition, fabric care composition and/or a personal care composition, said process comprising:
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a) forming a microcapsule of selected permeability, the process comprising preparing a core material of an oil and an initiator; preparing a first composition comprising a reaction product of i) an oil soluble or dispersible amine with ii) a multifunctional acrylate or methacrylate monomer or oligomer, an oil soluble acid and an initiator, and reacting the first composition at a first temperature;
adding the core material to the first composition;
preparing a second composition comprising an anionic emulsifier comprising a water soluble or water dispersible acrylic acid alkyl acid copolymer, water and an alkali or alkali salt, adding the second composition to the first composition and stifling to form droplets of the core material dispersed in the first composition; and
, applying heat to initiate wall formation around the droplets thereby forming microcapsulesb) combing said microcapsules with one or more adjunct ingredients. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification