The Procter Gamble Company

Dow Corning Corporation

Athanasios Surutzidis

Roger Jeffery Jones

Andrew Albon Fisk

Jean-Pol Boutique

Michael Jude Leblanc

Lauren Marie Tonge

Elizabeth F Mallen

Steven Patrick Christiano

Gregory G Bausch

Sharon Kay McCoy

Jeffrey John Scheibel

Daniel Stedman Connor

Bruce Prentiss Murch

Frank Andrej Kvietok

James C Burckett-St Laurent

Yi-Chang Fu

Robert Y Pan

Gregory Stephen Caravajal

Adrian John Angell

Michael Jude LeBlanc

Mark A Smerznak

Brent Michael Heist

David F Perkis

Walter Broeckx

A laundry additive particle having multiple coatings and compositions employing the particle are provided. The laundry additive particle comprises a central core particle with the core particle comprising a porous carrier core material and a glassy encapsulating material intermixed with the carrier material. The glassy encapsulating material is derived from one or more at least partially water-soluble hydroxylic compounds having an anhydrous, nonplasticized, glass transition temperature, T,, of at least about 0&deg; C. An optional intermediate encapsulating material may be coated on the central core particle. The intermediate encapsulating material may comprise a carbohydrate material having an anhydrous nonplasticized, glass transition temperature, T,of at least about 130&deg; C. Lastly, an external coating material is coated on the core particle or the intermediate encapsulating material which provides the laundry additive particle with a substantially non-tacky surface. The external coating material is derived from one or more at least partially water soluble or dispersible compounds selected from the group consisting of waxes, water-soluble polymers, fatty compounds, carbohydrates, cellulose and cellulose derivatives, natural and synthetic gums, silicates, borates, phosphates, chitin and chitosan, and mixtures thereof. The laundry additive particle has a hygroscopicity value of less than about 80%. Preferably, a laundry or cleaning agent such as a perfume is supported on or contained in the porous carrier.

Laundry additive particle having multiple surface coatings

The compositions of the present invention consist essentially of (I) a reaction product, (II) a nonaqueous liquid continuous phase, and (III) a moderately hydrophobic particulate stabilizing aid. Component (I) is prepared by heating a mixture of (i) a polyorganosiloxane fluid, (ii) a silicon compound, (iii) a finely divided filler and (iv) a catalytic amount of a compound for promoting the reaction of components (i) to (iii) at a temperature of 50.degree. C. to 300.degree. C. The compositions of the present invention can additionally contain (IV) at least one nonionic silicone surfactant, and (V) a nonreinforcing inorganic filler.

Stable dispersible silicone compositions

Glassy particles containing agents useful for laundry and cleaning products (preferably perfumes, bleaching agents, soil release polymers), and laundry and cleaning products containing these glassy particles. The particles comprise a glass derived from one or more at least partially water-soluble hydroxylic compounds, such as hydrogenated starch hydrolysates, sucrose, glucose, and starch hydrolysates. The glassy particle also has a hygroscopicity value of less than about 80%.

Delivery systems comprising zeolites and a starch hydrolysate glass

Low sudsing liquid detergent compositions

A process for preparing a suds controlling composition suitable for incorporation into laundry detergent products comprises absorbing into the pores of porous silica a sufficient amount of a surfactant-containing solution to ensure wetting of the porous silica, dispersing the porous silica having the surfactant-containing solution absorbed therein in a silicone oil and mixing the dispersion with a dispersing agent.

Suds controlling compositions comprising silicone and silica

Detergent composition with suds suppressing system

A process for producing a particulate laundry additive composition produces a particulate laundry additive for perfume delivery in laundry detergent compositions, especially those in the form of granules or agglomerates. The process includes mixing a porous carrier material, typically containing perfume, and an encapsulating material, typically a carbohydrate material, to form agglomerates or an extrudate which is then sized into particles for incorporation into a detergent product. The process may be employed to produce particulate additive compositions which may be used in fabric softening and dishwashing as well as laundry detergent compositions.

Process for producing a particulate laundry additive composition for

Disclosed are aqueous liquid detergent compositions comprising dispersed particles of a silicone-based suds suppressor system and a separately added moderately hydrophobic particulate silica stabilizing agent. Such a separately added stabilizing agent serves to retard coalescence and coagulation of the suds suppressor particles and thus enhances the storage stability of the suds suppressor-containing detergent compositions of this invention.

Stable liquid detergent compositions comprising a dispersible

Stable foam-controlled liquid detergent compositions

Laundry and cleaning compositions which comprise large pore size redox catalysts.

Detergent compositions comprising large pore size redox catalysts

Detergent additive absorbed into a porous hydrophobic material having a

Low-sudsing detergent compositions comprise an N-alkyl polyhydroxy fatty acid amide surfactant, wherein the N-alkyl substituent is at least C.sub.2, preferably C.sub.3 -C.sub.8. Such compositions are useful under cleaning conditions where excessive sudsing may be problematic.

Low sudsing polyhydroxy fatty acid amide detergents

Growing community of inventors

Wemmel, Belgium

Athanasios Surutzidis