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    • 3. 发明申请
    • LAUNDRY TREATMENT COMPOSITIONS COMPRISING PERFUME AND SILICA MICROPARTICLES
    • US20200056125A1
    • 2020-02-20
    • US16345761
    • 2017-10-17
    • Conopco, Inc., d/b/a UNILEVER
    • Martin Peter CROPPERCraig Warren JONESHailey KELSOJames MERRINGTON
    • C11D3/50C11D11/00C11D1/94C11D3/30C11D3/37C11D17/00
    • A laundry treatment composition comprising: i) at least 5 wt % amphiphilic material, preferably selected from the group consisting of detersive surfactants and quaternary ammonium compounds, ii) from 0.1 to 5 wt % perfume, iii) 0.2 to 6 wt % of porous microparticles comprising sol-gel derived material, the sol-gel derived material including a plurality of alkylsiloxy substituents and wherein the sol-gel derived material is obtained from: (a) at least one first alkoxysilane precursor having the formula: (R′O)3—Si—(CH2)n—Ar—(CH2)m—Si—(OR′)3 (1) where n and m are individually an integer from 1 to 8, Ar is a single-, fused-, or poly-aromatic ring, and each R′ is independently a C1 to C5 alkyl group and (b) optionally, at least one second precursor having the formula: (formula) (2) where x is 1, 2, 3 or 4; y is 0, 1, 2, 3; z is 0, 1; the total of x+y+z is 4; each R is independently an organic functional group; each an R′ is independently a C1 to C5 alkyl group and R″ is an organic bridging group, where the sol-gel derived material is swellable to at least 2.5 times its dry mass, when placed in excess acetone, whereby the weight amount of iii) exceeds the weight amount of ii) in the composition. Also, a method of prolongation of perfume delivery from a liquid laundry treatment composition comprising perfume, the method comprising the steps of: (i) adding sol-gel derived silica microparticles as described above to the liquid composition; C30068 EP (C) CPL (ii) optionally, diluting the liquid and applying the liquid or the diluted liquid to a surface to be treated to deposit the microparticles onto the surface; (iii) rinsing away the liquid or diluted liquid to leave perfume loaded microparticles on the surface to be treated; and (iv) releasing perfume from the microparticles over period of about 24 hours.
    • 4. 发明申请
    • ETHANOLIC COMPOSITIONS COMPRISING PERFUME
    • US20190290552A1
    • 2019-09-26
    • US16345908
    • 2017-10-17
    • Conopco, Inc., d/b/a UNILEVER
    • Martin Peter CROPPERCraig Warren JONESHailey KELSOJames MERRINGTON
    • A61K8/02A61Q13/00A61K8/34A61K8/58A61K8/25A61Q15/00
    • A composition for application to skin comprising: (i) at least 40 wt % ethanol, (ii) from 0.1 to 6 wt % perfume comprising non-polar perfume materials, (iii) optionally, at least 0.2 wt % surfactant, (iv) 0.1 to 6 wt % of porous microparticles comprising sol-gel derived material, the sol-gel derived material including a plurality of alkylsiloxy substituents and wherein the sol-gel derived material is obtained from: (a) at least one first alkoxysilane precursor having the formula: (R′O)3—Si—(CH2)—Ar—(CH2)m-Si—(OR′)3 (1) where n and m are individually an integer from 1 to 8, Ar is a single-, fused-, or poly- aromatic ring, and each R′ is independently a C1 to C5 alkyl group and (b) optionally, at least one second precursor having the formula: (2) where x is 1, 2, 3 or 4; y is 0, 1, 2, 3; z is 0, 1; the total of x+y+z is 4; each R is independently an organic functional group; each an R′ is independently a C1 to C5 alkyl group and R″ is an organic bridging group, where the sol-gel derived material is swellable to at least 2.5 times its dry mass, when placed in excess acetone, whereby at least part of the perfume remains outside the microparticles. Also, a method of prolongation of perfume delivery from a perfumed composition comprising the steps of: (i) adding sol-gel derived silica microparticles as described above to an ethanolic composition comprising ethanol and perfume, comprising non-polar perfume components, dispersed or dissolved in the ethanol, and optionally surfactant; (ii) applying the composition to skin to deposit the microparticles onto the skin (iii) evaporating the ethanol to leave some perfume and the microparticles on the skin; absorbing at least part of the non-polar perfume components from the liquid into the microparticles, preferably such that the microparticles increase in weight by 20 to 80 wt %, and (iv) releasing perfume from the microparticles over a period of from up to 24 hours.