Aminofunctional Silicone Emulsions

US10143862B2 · kind B2 · utility

Assignee

• Dow Silicones Corporation · US

Inventors

• Elise Billes · Castres, FR
• Sylvie Bouzeloc · Montigny-le-Tilleul, BE
• Severine Cauvin · Seneffe, BE
• Cindy Delvalle · Uccle - Ukkel, BE
• Tatiana Dimitrova · Braine-l'Alleud, BE
• Sophie Hanssens · Seneffe, BE
• Elodie Raynaud · Épinois, BE
• Blondine Donatienne Van Roy · Wezembeek-Oppem, BE

Key dates

• Filing date: Nov 28, 2012
• Grant date: Dec 4, 2018
• Expiry date: Oct 7, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2383/08
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Aqueous silicone emulsions are disclosed comprising: A) an aminofunctional organopolysiloxane, B) a quaternary ammonium surfactant having a formula R1 R2 R3 R4 N+ X−, where R1 is an organofunctional group containing at least 10 carbon atoms, R2 is R1 or a hydrocarbyl containing 1 to 12 carbon atoms, R3 is R1, R2, or an alcohol group containing 2 to 10 carbon atoms, R4 is R1, R2, or R3, X− is 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.