Conopco, Inc.

Unilever Plc

Unilever, N.v.

Jeremy Nicholas Winter

Craig Warren Jones

Alison Jayne Foster

Adam John Limer

Alyn James Parry

Martin Peter Cropper

Katherine Mary Thompson

Martin Charles Crossman

James Merrington

Susanne Henning Rogers

Anthony Hackett

Jane Whittaker

Stuart Anthony Barnett

Patricia Revell

Stephen John Singleton

Stephen Paul Rannard

David Duncalf

Adam Peter Jarvis

John Francis Wells

Robert John Carswell

Andrew Ian University Of Liverpool Cooper

Susan Henning Rogers

Haifei University Of Liverpool Zhang

The invention provides a use of a particle to absorb and retain odiferous compounds, wherein the particle comprises: &#x2014;(a) a solid core comprising a first hydrophobic polymer, and (b) a shell comprising a second hydrophobic polymer wherein the Tg of the first hydrophobic polymer is lower than the Tg of the second hydrophobic polymer; wherein the particles have a mean particle size of less than 1 micron, preferably from 0.1 to 0.3 microns, and wherein the odiferous compound is a malodor compound.

Use of a benefit delivery particle for malodour benefit

The invention provides a benefit agent delivery particle having an average diameter of less than 50 micron comprising; at least one shell formed by a step-growth polymerization reaction, preferably involving an isocyanate monomer, more preferably a urethane and/or a urea. interior said shell, at least one region formed by chain-growth polymerization reaction (preferably a free-radical polymerization) which does not involve an isocyanate, c) optionally, a benefit agent interior to said shell, and/or a deposition aid exterior to said shell. The invention further provides a process for the preparation of such particles wherein the shell is formed prior to the chain-growth polymerization of the at least one region interior of the shell, preferably be forming the shell at a temperature at which the chain-growth reaction is inhibited. The invention further provides fully formulated products, preferably liquids and gels, which contain said benefit agent delivery particles and a method of treating substrates using said products.

Benefit delivery particle, process for preparing said particle, compositions comprising said particles and a method for treating substrates

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Chester, United Kingdom

Jeremy Nicholas Winter