Abstract: A microcapsule comprising A) a core containing a hydrophobic liquid or wax, B) a polymeric shell comprising a) a polymer formed from a monomer mixture containing: i) 1 to 95% by weight of a hydrophobic mono functional ethylenically unsaturated monomer, ii) 5 to 99% by weight of a polyfunctional ethylenically unsaturated monomer, and iii) 0 to 60% by weight of other mono functional monomer, and b) a further hydrophobic polymer which is insoluble in the hydrophobic liquid or wax. The invention includes a process for the manufacture of particles and the use of particles in articles, such as fabrics, and coating compositions, especially for textiles.

Abstract: The present invention related to (micro-or nano-) capsules that have two different functional groups on the outer shell of the particles that allow deposition onto the textile surfaces (i.e. exhibit substantivity) and subsequent covalent bonding of the particles onto the textile (i.e. are reactive towards the fiber).

Abstract: A microcapsule comprising a core containing a hydrophobic liquid or wax and a polymeric shell formed from: i) 1 to 20% by weight of polymerizable silane compound, ii) 1 to 94% by weight of hydrophobic mono functional ethylenically unsaturated monomer, iii) 5 to 98% by weight of polyfunctional ethylenically unsaturated monomer, and iv) 0 to 60% by weight of other mono functional monomer(s), wherein components (i), (ii), (iii) and (iv) total 100%, and in which the microcapsule also includes a hydrophilic polymer which is covalently bonded to the microcapsule. The invention includes a process for the manufacture of particles and the use of particles in articles, such as fabrics, and coating compositions, especially for textiles.

Abstract: A microcapsule comprising a core containing a hydrophobic liquid or wax within a polymeric shell, in which solid particles insoluble in the hydrophobic liquid or wax are distributed throughout the core, wherein an oil soluble dispersant polymer is adhered to the surface of the solid insoluble particles. Processes of obtaining the microcapsules and dispersions of microcapsules in a liquid are claimed. The microcapsules can be used in a variety of applications particularly in the field of thermal energy storage. Suitably the microcapsules can be designed to have a particular density and can be used in the transfer fluids where the density of the microcapsules are the same as the carrier fluid.

Abstract: A microcapsule comprising A) a core containing a hydrophobic liquid or wax, B) a polymeric shell comprising a) a polymer formed from a monomer mixture containing: i) 1 to 95% by weight of a hydrophobic mono functional ethylenically unsaturated monomer, ii) 5 to 99% by weight of a polyfunctional ethylenically unsaturated monomer, and iii) 0 to 60% by weight of other mono functional monomer, and b) a further hydrophobic polymer which is insoluble in the hydrophobic liquid or wax. The invention includes a process for the manufacture of particles and the use of particles in articles, such as fabrics, and coating compositions, especially for textiles.

Abstract: A microcapsule comprising a hydrophobic core within a polymeric shell, in which the core comprises: (a) 10 to 65% by weight of a hydrocarbon liquid or hydrocarbon wax containing hydrocarbon molecules of between 10 and 24 carbon chain length; and (b) 35 to 90% by weight of an aliphatic acid containing at least 6 carbon atoms, based on the total weight of the core. The microcapsules are suitable for use in heat storage systems and especially in heat transfer systems were it is normally necessary for the density of the microcapsules and the carrier fluid to be essentially the same.

Abstract: A microcapsule comprising a core containing a hydrophobic liquid or wax within a polymeric shell, in which solid particles insoluble in the hydrophobic liquid or wax are distributed throughout the core, wherein an oil soluble dispersant polymer is adhered to the surface of the solid insoluble particles. Processes of obtaining the microcapsules and dispersions of microcapsules in a liquid are claimed. The microcapsules can be used in a variety of applications particularly in the field of thermal energy storage. Suitably the microcapsules can be designed to have a particular density and can be used in the transfer fluids where the density of the microcapsules are the same as the carrier fluid.

Abstract: A microcapsule comprising a core containing a hydrophobic liquid or wax and a polymeric shell formed from: i) 1 to 20% by weight of polymerisable silane compound, ii) 1 to 94% by weight of hydrophobic mono functional ethylenically unsaturated monomer, iii) 5 to 98% by weight of polyfunctional ethylenically unsaturated monomer, and iv) 0 to 60% by weight of other mono functional monomer(s), wherein components (i), (ii), (iii) and (iv) total 100%, and in which the microcapsule also includes a hydrophilic polymer which is covalently bonded to the microcapsule. The invention includes a process for the manufacture of particles and the use of particles in articles, such as fabrics, and coating compositions, especially for textiles.

Abstract: The present invention related to (micro-or nano-) capsules that have two different functional groups on the outer shell of the particles that allow deposition onto the textile surfaces (i.e. exhibit substantivity) and subsequent covalent bonding of the particles onto the textile (i.e. are reactive towards the fiber).

Abstract: The present invention relates to micron to sub-micron sized coloured polymeric electrophotographic toner particles, a process for making those particles and their use as dry or liquid electrophotographic toners, and as component in the preparation of two-component electrophotographic developers. The particles comprise two different kinds of polymers and are made through dewatering of a water-in-oil emulsion.

Abstract: Bleed-resistant microparticles comprising at least one colorant, a process to produce them, compositions containing them and their use in skin care applications to produce a natural, textured tone effect.

Abstract: The present invention describes bleed-resistant microparticles comprising at least one colorant, a process to produce them, compositions containing them and their use in cosmetics applications to produce a natural, textured tone effect.

Abstract: A particulate composition comprising particles which consist of a shell wall surrounding a hydrophilic core, wherein the shell wall is formed from a polymeric coacervate and wherein the particles comprise a polymeric amphipathic stabiliser. Also claimed is a process of producing a particulate composition comprising particles which consist of a shell wall surrounding a hydrophilic core, comprising the steps of a) forming an aqueous liquid that contains a wall building material that is capable of forming the shell wall by coacervation, b) dispersing the aqueous liquid into a water immiscible liquid, which comprises a stabilising substance to form a dispersion that comprises aqueous droplets dispersed in a continuous phase of water immiscible liquid, c) subjecting the dispersion to coacervation conditions, such that the wall building material coacervates at the surface of the aqueous doplets, characterised in that the stabilising substance comprises a polymeric amphipathic stabiliser.

Abstract: Water soluble granules or particles of saldimine-type manganese complexes that are suitable as catalysts in reactions with peroxy compounds are described. The granules are used especially in washing agents. They are distinguished by retarded disssolution of and improved action of the manganese complexes.

Abstract: A particulate composition comprising particles which consist of a shell wall surrounding a hydrophilic core, wherein the shell wall is formed from a polymeric coacervate and wherein the particles comprise a polymeric amphipathic stabiliser. Also claimed is a process of producing a particulate composition comprising particles which consist of a shell wall surrounding a hydrophilic core, comprising the steps of a) forming an aqueous liquid that contains a wall building material that is capable of forming the shell wall by coacervation, b) dispersing the aqueous liquid into a water immiscible liquid, which comprises a stabilising substance to form a dispersion that comprises aqueous droplets dispersed in a continuous phase of water immiscible liquid, c) subjecting the dispersion to coacervation conditions, such that the wall building material coacervates at the surface of the aqueous doplets, characterised in that the stabilising substance comprises a polymeric amphipathic stabiliser.

Abstract: A particulate composition comprising particles having a polymeric matrix including a fabric conditioning active ingredient and wherein the polymeric matrix is formed of a co-polymer of (a) an ethylenically unsaturated hydrophobic monomer with (b) a free base monomer. Preferably the composition is comprised in a detergent concentrate in which the particles are dispersed wherein the fabric conditioner is not released in the concentrate or during the wash cycle of a laundry operation but is released during the rinse cycle of said laundry operation.

Abstract: Water soluble granules or particles of saldimine-type manganese complexes that are suitable as catalysts in reactions with peroxy compounds are described. The granules are used especially in washing agents. They are distinguished by retarded disssolution of and improved action of the manganese complexes.

Abstract: An emulsion comprising an organic discontinous phase which is distributed through a continuous aqueous phase, wherein the organic phase comprises a light sensitive active ingredient, and the emulsion is stabilised by a water soluble stabilising material in the aqueous phase, wherein the water-soluble stabilising material is a water-soluble stabilising polymer which has a plurality of hydrophilic and hydrophobic groups and is selected from partially hydrolysed polyvinyl acetate and addition copolymers formed from (i) at least one ethylenically unsaturated carboxylic acid esters and (ii) at least one ethylenically unsaturated carboxylic acid or ethylenically unsaturated carboxylic acid anhydride, and wherein the organic phase further comprises, a) an organic solvent which is a liquid at 25° C. and/or b) an organic phase stabilising material comprises hydrophobic moieties and is a material which is more soluble in the organic phase than the aqueous phase.

Abstract: Polymer particles comprising a hydrophobic organic matrix and located at the exterior free cationic groups and a further polymer which comprises free hydroxy groups. The particles are produced by an aqueous suspension polymerization process wherein the continuous aqueous phase contains a polymerization stabilizer and a dissolved vinyl addition cationic monomer. The polymerization stabilizer can be any suitable polymer that comprises free hydroxy groups. The process results in polymers of average particle size in the range 50 to 150 microns and reduced levels of undesired polymer emulsion or undersized particles. The particles are particularly useful for absorbing water insoluble active ingredients, such as insecticides, insect repellents, fragrances, pheromones for subsequent slow release. The cationic surface character of said polymer particles makes them especially useful for forming stable dispersions or slurries in active concentrates such as perfume bases or detergent concentrates.

Abstract: Perfume is absorbed within organic polymer particles which have a further polymer at their exterior. The further polymer incorporates free hydroxyl groups and serves to promote deposition of the particles from a wash or rinse liquor. The further polymer may be part of an encapsulating shell, but more conveniently is used as a stabiliser during polymerisation of the particles. Highly hydrolysed polyvinyl alcohol is preferred.