Abstract: An emulsion is disclosed which comprises a non-aqueous phase comprising a solid silicone resin and a siloxane carrier vehicle having an average of at least one silicon-bonded functional group per molecule and capable of carrying the solid silicone resin, an aqueous phase comprising water, and a surfactant, wherein the emulsion is substantially free from organic solvents. Various methods relating to the emulsion and end uses thereof are also disclosed. A composition comprising the emulsion and an organic binder, as well as related methods, are further disclosed.

Abstract: An emulsion is disclosed which comprises a non-aqueous phase comprising a solid silicone resin and a siloxane carrier vehicle having an average of at least one silicon-bonded functional group per molecule and capable of carrying the solid silicone resin, an aqueous phase comprising water, and a surfactant, wherein the emulsion is substantially free from organic solvents. Various methods relating to the emulsion and end uses thereof are also disclosed. A composition comprising the emulsion and an organic binder, as well as related methods, are further disclosed.

Abstract: A process for increasing the hydrophobicity of a porous product by treating the product, or a composition providing for the product, with a water repellent material, characterized in that the porous product or a composition providing the product, is treated with an aqueous suspension of microcapsules where the microcapsules comprise a water repellent organosilicon core material selected from an organosilane, a partially condensed organosilane and a branched siloxane resin, and a shell of a silicon-based network polymer comprising silica units.

Abstract: The invention relates to a method for the therapeutic treatment of keratinous substrate, mucous membrane or tooth comprising preparing a composition containing water, at least one therapeutically active ingredient, an organopolysiloxane X having at least two silicon-bonded alkenyl groups per molecule, a hydrosilylation catalyst and an organohydrogensiloxane compound Y having at least two silicon bonded hydrogen atoms per molecule. At least one of compound X or Y is enclosed within microcapsules suspended in an aqueous phase, and the composition is applied in a galenic form preferably chosen from spray, foam, brush, pen or roller so that a hydrosilylation reaction between compounds X and Y occurs to form a film on the keratinous substrate, mucous membrane or tooth. The invention further extends to a delivery system and to a film comprising a cured silicone.

Abstract: A process for preparing silicate shell microcapsules comprises adding a water reactive silicon compound to an oil in water emulsion, thereby condensing and polymerizing the water reactive silicon compound to form silicate shell microcapsules having a core comprising the oil phase of the said emulsion. The water reactive silicon compound comprises a tetraalkoxysilane and an alkoxysilane having an amino or quaternary ammonium substituted alkyl group.

Abstract: A process for preparing silicate shell microcapsules comprises adding a water reactive silicon compound to an oil in water emulsion, thereby condensing and polymerizing the water reactive silicon compound to form silicate shell microcapsules having a core comprising the oil phase of the said emulsion. The water reactive silicon compound comprises a tetraalkoxysilane and an alkoxysilane having an amino or quaternary ammonium substituted alkyl group.

Abstract: A fabric, fibre, hair or skin conditioning additive for use in a liquid cleaning product is encapsulated within a shell comprising a silicon-containing polymer network.

Abstract: A process for increasing the hydrophobicity of a porous product by treating the product, or a composition providing for the product, with a water repellent material, characterised in that the porous product or a composition providing the product, is treated with an aqueous suspension of microcapsules where the microcapsules comprise a water repellent organosilicon core material selected from an organosilane, a partially condensed organosilane and a branched siloxane resin, and a shell of a silicon-based network polymer comprising silica units.

Abstract: A fabric, fiber, hair or skin conditioning additive for use in a liquid cleaning product is encapsulated within a shell comprising a silicon-containing polymer network.

Abstract: A process for preparing silicate shell microcapsules comprises adding a water reactive silicon compound to an oil in water emulsion, thereby condensing and polymerizing the water reactive silicon compound to form silicate shell microcapsules having a core comprising the oil phase of the said emulsion. The water reactive silicon compound comprises a tetraalkoxysilane and an alkoxysilane having an amino or quaternary ammonium substituted alkyl group.

Abstract: The present invention relates to a controlled release carrier system that can be incorporated into rinse-off application products containing at least one surfactant such as heavy duty liquids (HDL), Rinse Cycle Fabric Softeners (RCFS), Shampoos, Hair Conditioners, Shower Gels, cleansing products, and that enhance deposition of lipophilic active materials like fragrance, fine perfumes, flavors and other volatile compounds onto a surface. The fragrance composition is encapsulated within a shell comprising a silicon-containing material and the shell has a mean diameter size which is lower than 30 micrometer. The surfactant composition containing the fragrance composition is washed off and the fragrance is progressively released.

Abstract: Aqueous suspensions of silicate shell microcapsules are disclosed wherein a first portion of the silicate shell micro-capsules contain an organopolysiloxane having at least two alkenyl groups and a hydrosilylation catalyst as Part A of a curable siloxane composition, and a second portion of the silicate shell microcapsules contain an organohydrogensiloxane as Part B of the curable siloxane composition.

Abstract: A process is disclosed for preparing microcapsules having a shell thickness of at least 18 nanometers by polymerizing a tetraalkoxysilane at the oil/water interface of an emulsion containing 0.1 to 0.3 weight percent of a cationic surfactant. The microcapsules are useful to prepare encapsulated sunscreens having sufficient robustness to prevent leakage of the encapsulated sunscreen in a formulated composition.

Abstract: Aqueous suspensions of silicate shell microcapsules are disclosed wherein a first portion of the silicate shell micro-capsules contain an organopolysiloxane having at least two alkenyl groups and a hydrosilylation catalyst as Part A of a curable siloxane composition, and a second portion of the silicate shell microcapsules contain an organohydrogensiloxane as Part B of the curable siloxane composition.

Abstract: A process for preparing silicate shell microcapsules comprises adding a water reactive silicon compound to an oil in water emulsion, thereby condensing and polymerizing the water reactive silicon compound to form silicate shell microcapsules having a core comprising the oil phase of the said emulsion. The water reactive silicon compound comprises a tetraalkoxysilane and an alkoxysilane having an amino or quaternary ammonium substituted alkyl group.

Abstract: Compositions containing suspended silicate shell microcapsules of a silicone textile treatment are disclosed. These compositions are particularly useful as textile treatments to impart hydrophobicity, softness, and flame retardant properties.

Abstract: A fabric, fibre, hair or skin conditioning additive for use in a liquid cleaning product is encapsulated within a shell comprising a silicon-containing polymer network.