Abstract: A Fresnel lens in a lens body, the lens body is provided with a light incident surface and a light exit surface opposite to each other along a first direction, and the light exit surfaces are adjacently arranged in a second direction perpendicular to the first direction. There are several protruding teeth, and the protruding teeth are formed by an effective surface and an ineffective surface, and the ineffective surface is inclined at an acute angle relative to the first direction. The invention makes the light passing through the lens body reach the effective surface as much as possible, thereby reducing stray light and enhancing light efficiency.

Abstract: Disclosed is a non-spherical microcapsule comprising a core comprising fatty ester having a melting point of at least 30° C. and a benefit agent; a shell comprising nanoparticles having a diameter of 10 to 300 nm.

Abstract: Disclosed is a microcapsule comprising: (i) a core comprising a benefit agent; and (ii) a shell comprising silica; wherein said shell comprises plate-like inorganic materials having an average thickness of 1-1000 nm; wherein said benefit agent is fragrance, pro-fragrance, hair conditioning agent, anti-dandruff agent, moisturizers, emollients, dyes and/or pigments, colour care additives (including dye fixing agents), or a mixture thereof.

Abstract: Disclosed is a personal care composition comprising (a) particle comprising chitosan salt at the outer surface of the particle; and (b) functionalized non-volatile silicone, wherein the amount of the functionalized non-volatile silicone is greater than 20% by weight of the total non-volatile silicone.

Abstract: Disclosed is a non-spherical microcapsule comprising a core comprising a benefit agent, and a shell comprising nanoparticles having a diameter of 10 to 300 nm and polyurea.

Abstract: A composition comprising: (i) an antidandruff agent; (ii) a wax or a wax-like substance in which said antidandruff agent is soluble or dispersible, where melting point of said wax and said substance is 30° C. to 105° C. and where said substance is not a UV absorbing sunscreen; and, (iii) a cationic polymer having weight average molecular weight of 103 Da to 107 Da, where said composition is in the form of particles of particle size 0.1 to 1000 ?m and where said wax-like substance is a C13 to 35 fatty alcohol; where said wax is at least one of beeswax, Chinese wax, lanolin, shellac wax, spermaceti, bayberry wax, candelilla wax, carnauba wax, castor wax, esparto wax, Japan wax, ouricury wax, rice bran wax, soy wax, tallow tree wax, ceresin wax, montan wax, ozocerite or peat wax.

Abstract: Disclosed is a personal care composition comprising: a) particle comprising chitosan salt at the outer surface of the particle; and b) silicone component selected from dimethicone, aminosilicone or a mixture thereof, wherein the silicone component has a viscosity of at least 5,000 cSt at 25° C.

Abstract: Disclosed are composite particles comprising a photolabile antidandruff agent and an organic UV filter whose melting point is from 30° C. to 105° C., characterized in that said composite particles comprise a cationic polymer having weight average molecular weight of 1000 Da to 10000000 Da.

Abstract: Disclosed is a non-spherical microcapsule comprising a core comprising a benefit agent, and a shell comprising nanoparticles having a diameter of 10 to 300 nm and polyurea.

Abstract: Disclosed is a microcapsule comprising benefit agent and water-insolvable solid particle, wherein the microcapsule has an aspect ratio of from 3:1 to 12:1 and the weight ratio of the particle to the benefit agent is 1:5 to 50:1, where aspect ratio means the ratio of the length to width of the microcapsule as measured by optical microscopy, where length refers to the longest measurable distance of the microcapsule in the optical image and width refers to the longest measurable distance of the microcapsule along the direction perpendicular to the length of the microcapsule in the optical image, and where water-insolvable refers to a material that dissolves in water to give a solution with a concentration of less than 1 gram per litre, wherein, the water-insolvable solid particle comprises a plurality of pores throughout the particles and the benefit is encapsulated inside the pores

Abstract: Disclosed is a non-spherical microcapsule comprising a core comprising fatty ester having a melting point of at least 30° C. and a benefit agent; a shell comprising nanoparticles having a diameter of 10 to 300 nm.

Abstract: Disclosed is a microcapsule comprising inorganic particle and benefit agent wherein the microcapsule has a sphericity of 0.15 to 0.74, wherein said benefit agent is distributed throughout the particle, and wherein said microcapsule is not core-shell microcapsule having a single core. The inorganic particle preferably comprises bismuth oxychloride, aluminium oxide, barium sulfate, boron nitride, zirconium oxide, mica, clay, silicate, talc or combination thereof. The benefit agent is preferably a fragrance or pro-fragrance. The microcapsule may be prepared by mixing the inorganic particle with benefit agent at 0 to 40° C. A home or personal care composition comprises the microcapsules. It may further comprise a cleansing surfactant.

Abstract: Disclosed is a personal care composition comprising: a) particle comprising chitosan salt at the outer surface of the particle; and b) silicone component selected from dimethicone, aminosilicone or a mixture thereof, wherein the silicone component has a viscosity of at least 5,000 cSt at 25° C.

Abstract: Disclosed is a personal care composition comprising (a) particle comprising chitosan salt at the outer surface of the particle; and (b) functionalized non-volatile silicone, wherein the amount of the functionalized non-volatile silicone is greater than 20% by weight of the total non-volatile silicone.

Abstract: Disclosed is a benefit agent delivery particle comprising a benefit agent; and a chitosan salt at the outer surface of the particle, wherein the chitosan salt comprises a chitosan component and amino acid anion, wherein the amino acid comprises phenylalamine; the amino acid does not comprises tyrosine; and the amino acid does not comprises histidine or the amino acid comprises no greater than 20% of histidine by mole of the total amino acid, wherein the benefit agent comprises fragrance, pro-fragrance, hair conditioning agent, anti-dandruff agent, moisturizers, emollients, dyes, pigments, color care additives, or a mixture thereof.

Abstract: Disclosed is a microcapsule comprising a benefit agent inside a water insoluble porous inner shell, an outer shell comprising at least one layer of cationic polymer and at least one layer of anionic polymer, and a non-ionic polysaccharide deposition aid.

Abstract: Disclosed is a microcapsule comprising a benefit agent inside a water insoluble porous inner shell, an outer shell comprising at least one layer of cationic polymer and at least one layer of anionic polymer, wherein the anionic polymer is anionic ally modified polysaccharide, and optionally the microcapsule comprises a non-ionic polysaccharide deposition aid.

Abstract: A process for the preparation of a particle, wherein the particle comprises: (a) a core comprising a hydrophobic benefit agent; (b) an outer crosslinked shell, which comprises a crosslinked, hydrophobically modified polyvinyl alcohol, which comprises a crosslinking agent comprising a first dextran aldehyde having a molecular weight of from 2,000 to 2,000,000 Da; and (c) an inner polyamide shell, wherein the shell comprises a polyamide, and wherein the polyamide comprises an aromatic group; wherein the outer crosslinked shell is formed prior to the formation of the inner polyamide shell.

Abstract: Disclosed is a benefit agent delivery particle comprising a benefit agent; and a chitosan salt at the outer surface of the particle, wherein the chitosan salt comprises a chitosan component and amino acid anion, wherein the amino acid comprises phenylalamine; the amino acid does not comprises tyrosine; and the amino acid does not comprises histidine or the amino acid comprises no greater than 20% of histidine by mole of the total amino acid, wherein the benefit agent comprises fragrance, pro-fragrance, hair conditioning agent, anti-dandruff agent, moisturizers, emollients, dyes, pigments, colour care additives, or a mixture thereof.

Abstract: A process for the preparation of a particle, wherein the particle comprises: (a) a core comprising a hydrophobic benefit agent; (b) an outer crosslinked shell, which comprises a crosslinked, hydrophobically modified polyvinyl alcohol, which comprises a crosslinking agent comprising a first dextran aldehyde having a molecular weight of from 2,000 to 2,000,000 Da; and (c) an inner polyamide shell, wherein the shell comprises a polyamide, and wherein the polyamide comprises an aromatic group; wherein the outer crosslinked shell is formed prior to the formation of the inner polyamide shell.