Abstract: Polymeric particles comprising a polymeric matrix that has been formed from a blend of monomers comprising a first monomer which is an ethylenically unsaturated ionic monomer and a second monomer which is an ethylenically unsaturated hydrophobic monomer which is capable of forming a homopolymer of glass transition temperature in excess of 50° C., wherein secondary particles are distributed throughout the matrix, in which the secondary particles comprise a hydrophobic polymer that has been formed from an ethylenically unsaturated hydrophobic monomer which is capable of forming a homopolymer of glass transition temperature in excess of 50° C. and optionally other monomers, which hydrophobic polymer is different from the polymeric matrix. Also claimed is a process for preparing particles. The particles have improved shatter resistance. Preferably the polymeric particles comprise an active ingredient, especially a colorant.

Abstract: A particulate composition comprising, A) an organic phase change material, B) a water insoluble polymeric matrix comprising, B1) polymeric material containing repeating monomer units formed from i) at least one hydrophobic ethylenically unsaturated monomer(s), and ii) at least one hydrophilic ethylenically unsaturated monomer(s) which provides the polymeric material with pendent functional groups, and, B2) a cross-linking component derived from a cross-linking compound which has reacted with said pendent functional groups of the polymeric material, in which the organic phase change material (A) is distributed as a separate phase throughout the water insoluble polymeric matrix (B).

Abstract: The invention relates to a process of preparing polymer particles which comprise an effective amount of at least one colourant, a polymer matrix and secondary particles distributed within the polymer matrix. The process comprises the following steps: A) Preparation of an emulsion of a polymer formed from a monomer blend in an aqueous phase and Formation of the secondary particles in the aqueous phase; B) Addition to the aqueous phase of an effective colouring amount of at least one colourant; C) Dispersing or dissolving the colourant in the aqueous phase; and D) Subjecting the emulsion to dehydration in a spray-drying unit.

Abstract: The present invention relates to personal care or cosmetic compositions that contain a shatter-resistant blend of microencapsulated colorants that can produce a natural, textured tone effect. A method for cosmetic treatment comprises application of such personal care or cosmetic compositions onto at least a part of the body.

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: 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: 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.