The present invention relates to microcapsules with a core-shell or matrix morphology stabilized by cross-linked nanoparticles. A process for the preparation of said microcapsules comprising selecting internal crosslinking of a Pickering emulsion is also an object of the invention. Perfumed consumer products, in particular fine fragrance, home and personal care products are also part of the invention.

The present invention concerns a solid polymeric material impregnated with a volatile organic substance (such as a perfume, an odour-masking agent or an insecticide) and a solvent comprising a C.sub.10-C.sub.18 monoester of C.sub.1-C.sub.8 alkyl that helps improve the rate of infusion of the volatile organic substance in the material and the diffusion profile of same. It also concerns a method for producing this material, and the uses of same for perfuming or deodorising the atmosphere, the body or laundry or as an insect repellent or insecticide. The invention also concerns a perfuming or deodorising product, an insect repellent or an insecticide comprising the above-mentioned material.

The present invention relates to the use of hexadeca-8,15-dienal or of a substance mixture which comprises this compound as aroma chemical, in particular as fragrance, or formulation auxiliary; and also to processes for its preparation, moreover aroma substance compositions and compositions comprising hexadeca-8,15-dienal.

The present invention relates to the use of hexadeca-8,15-dienal or of a substance mixture which comprises this compound as aroma chemical, in particular as fragrance, or formulation auxiliary; and also to processes for its preparation, moreover aroma substance compositions and compositions comprising hexadeca-8,15-dienal.

Disclosed are: (a) controlled release matrix particles containing 10-70 wt. % of a hydrophobic active ingredient, 21-72 wt. % of a polysaccharide, 3.80-12 wt. % of a crosslinking agent, 1.00-6 wt. % of a catalyst and 0.10-5 wt. % of a silica flow aid; (b) controlled release core/shell particles containing 10-70 wt. % of a hydrophobic active ingredient, 1.0-3.2 wt. % of an epoxidized oil, 21-64 wt. % of a polysaccharide, 7.6-23% of an amine-functionality containing material, and 0.10-5 wt. % of a silica flow aid; and (c) hybrid particles wherein the core/shell particles are contained in a matrix. Also disclosed are methods for making the particles and compositions containing the particles.

Disclosed are: (a) controlled release matrix particles containing 10-70 wt. % of a hydrophobic active ingredient, 21-72 wt. % of a polysaccharide, 3.80-12 wt. % of a crosslinking agent, 1.00-6 wt. % of a catalyst and 0.10-5 wt. % of a silica flow aid; (b) controlled release core/shell particles containing 10-70 wt. % of a hydrophobic active ingredient, 1.0-3.2 wt. % of an epoxidized oil, 21-64 wt. % of a polysaccharide, 7.6-23% of an amine-functionality containing material, and 0.10-5 wt. % of a silica flow aid; and (c) hybrid particles wherein the core/shell particles are contained in a matrix. Also disclosed are methods for making the particles and compositions containing the particles.

A freshening product is provided. The freshening product includes a pressurized plastic container having an internal gage pressure of about 414 kPa to about 1100 kPA and an aqueous freshening composition having: at least one controlled perfume raw material (“Controlled PRM”) selected from the group consisting of: (z)-1-((1r,2s)-2,6,6-trimethylcyclohex-3-en-1-yl)but-2-en-1-one; 3-(2-ethylphenyl)-2,2-dimethylpropanal; 3,7-dimethyloct-6-en-1-ol; 3-(4-isopropylphenyl)-2-methylpropanal; 5-heptyldihydrofuran-2(3h)-one; (e)-4-methyldec-3-en-5-ol; 4-(tert-butyl)cyclohexyl acetate; 2-(tert-butyl)cyclohexyl acetate; allyl hexanoate; 2,6-dimethyloct-7-en-2-ol; 2-methyl-1-phenylpropan-2-yl acetate; (z)-cyclooct-4-en-1-yl methyl carbonate; (r)-1-methyl-4-(prop-1-en-2-yl)cyclohex-1-ene; 3,7-dimethylocta-1,6-dien-3-ol; 3,7-dimethylocta-1,6-dien-3-yl acetate; 3-(4-(tert-butyl)phenyl)-2-methylpropanal; cyclohexyl acetate; p-cymene; (e)-3,7-dimethylnona-1,6-dien-3-ol; (e)-4-(2,6,6-trimethylcyclohex-1-en-1-yl)but-3-en-2-one; (e)-4-(2,6,6-trimethylcyclohex-2-en-1-yl)but-3-en-2-one; (z)-3-methyl-4-(2,6,6-trimethylcyclohex-2-en-1-yl)but-3-en-2-one; 1-(2,6,6-trimethyl-1-cyclohex-2-en-1-yl)pent-1-en-3-one; 3a,4,5,6,7,7a-hexahydro-4,7-methano-1(3)h-inden-6(1)-yl propanoate; 3a,4,5,6,7,7a-hexahydro-4,7-methano-1(3)h-inden-6(1)-yl acetate; ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate; and combinations thereof, or at least one limited perfume raw material (“Limited PRM”) selected from the group consisting of: ethyl 2-methylbutanoate; 3,5,5-trimethylhexyl acetate; ethyl 2-methylpentanoate; propyl (s)-2-(tert-pentyloxy)propanoate; 1-(3,3-dimethylcyclohexyl)ethyl formate, 4-methylquinoline; 1-heptanol; and combinations thereof, wherein each Controlled PRM or each Limited PRM, when present, is present at a level up to 0.3%, by weight of the aqueous freshening composition.

Stable formulations and perfume compositions include amino alcohol(s) as well as >10 wt % fragrances.

Stable formulations and perfume compositions include amino alcohol(s) as well as >10 wt % fragrances.

The present invention relates to a fragrance composition comprising ionic liquids for enhanced evaporation of the perfume raw materials. The invention also relates to methods of use of the fragrance compositions for perfuming suitable substrates, particularly skin and hair.