Dow Silicones Corporation

Dow Corning Corporation

Sophie Hanssens

Severine Cauvin

Blondine Donatienne Van Roy

Tatiana Dimitrova

Stephane S Ugazio

Sylvie Bouzeloc

Cindy Delvalle

Elodie Raynaud

Avril E Surgenor

Lok Ming Eva Li

Houria Seghir

Brett Lee Zimmerman

Donald Anthony Kadlec

Patrick J Fryfogle

Marine Viaud

Elise Billes

Alberto Petrosino

Benoit Rassart

Pierre Leger

Mirasbek Kuterbekov

A class of silicone polyethers represented by formula (I) along with methods for their preparation including the steps of combining: a) a polyorganohydrogensiloxane ('—SiH polymer') as represented by formula (VI) and b) a polyoxyalkylene as represented by formula (VII) in the presence of c) a hydrosilylation catalyst.

Silicone polyethers

An aqueous coating composition including: a) pigment, b) binder, c) surfactant and d) an amino-functional polyorganosiloxane including at least one pendant amino group.

Amino-functional polyorganosiloxane additive for aqueous coating compositions

The present invention provides methods for preparing emulsions of silicone fluids having pituitous rheological properties. The present invention also provides emulsions of a silicone fluid having pituitous rheological properties and composition comprising the emulsions. The compositions include, but are not limited to, personal care compositions and compositions for hair shampoo, hair conditioner, hair treatment composition, or skin care product.

Pituitous silicone emulsions

Aminofunctional silicone compositions are disclosed comprising: an organopolysiloxane having an average formula of (CH)SiO[(CH)SiO][(CH)RSiO]Si(CH)with less than 1 weight % of nitrogen in its formula, where Ris an aminofunctional group, x is &#x2265;100, y is &#x2265;1 with the proviso the sum of x+y is from 250 to 350; wherein the viscosity of the silicone composition ranges from 1000 to 2500 cP at 25&#xb0; C. and is measured by a Brookfield RV DV viscometer equipped with Pro CP 52 spindle at 20 RPM; and the aminofunctional silicone composition contains less than 0.1 weight % of D4 and less than 0.1 weight % D5 cyclic siloxanes.

Aminofunctional organosiloxanes

Aqueous silicone emulsions are disclosed comprising: A) an aminofunctional organopolysiloxane, B) a quaternary ammonium surfactant having a formula RRRRNX, where Ris an organofunctional group containing at least 10 carbon atoms, Ris Ror a hydrocarbyl containing 1 to 12 carbon atoms, Ris R, R, or an alcohol group containing 2 to 10 carbon atoms, Ris R, R, or R, Xis a halide, sulfate, sulfonate, methosulfate, or ethosulfate, C) a nonionic surfactant, where the aqueous silicone emulsion contains less than 0.2 weight % of D4 and D5 cyclic siloxanes.

Aminofunctional Silicone Emulsions

Aminofunctional silicone compositions are disclosed comprising: an organopolysiloxane having an average formula of (CH)SiO[(CH)SiO][(CH)RSiO]Si(CH)with less than 1 weight % of nitrogen in its formula, where Ris an aminofunctional group, x is &#x2267;100, y is &#x2267;1 with the proviso the sum of x+y is from 250 to 350; wherein the viscosity of the silicone composition ranges from 1000 to 2500 cP at 25&#xb0; C. and is measured by a Brookfield RV DV viscometer equipped with Pro CP 52 spindle at 20 RPM; and the aminofunctional silicone composition contains less than 0.1 weight % of D4 and less than 0.1 weight % D5 cyclic siloxanes.

The invention relates to a method for the production of silicone in water emulsions by emulsion polymerization. The emulsion contains particles of an organopolysiloxane polymer having an average particle diameter of less than 1 &#x3bc;m. The method comprises: &#x2014;combining a silanol end-blocked organosiloxane starting polymer, water, and a surfactant; said starting polymer having a viscosity of at least 2 Pa&#xb7;s preferably at least 2.5 Pa&#xb7;s preferably at least 3.5 Pa&#xb7;s preferably at least 4 Pa&#xb7;s and up to 150 Pa&#xb7;s; &#x2014;emulsifying the starting polymer by agitating or shearing the ingredients; &#x2014;polymerizing the starting polymer to form a longer chain silanol end-blocked organopolysiloxane polymer; wherein at least a portion of said polymerizing step is performed at a temperature of less than or equal to 16&#xb0; C. preferably less than or equal to 15&#xb0; C.

Emulsion polymerisation method

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Chastre, Belgium

Sophie Hanssens