Liquid surfactant compositions and associated methods

US10385291B2 · kind B2 · utility

Assignees

• Henkel AG & Co. KGaA · DE
• HENKEL IP & HOLDING GMBH · DE

Inventors

• Frank Meier · Goldkronach, DE
• Bin Lin · Scottsdale, US
• Natalie Mast · Phoenix, US
• Martina Seiler · Duisburg, DE
• Pamela Lam · Congers, US
• John Hudson · Clearwater, US

Key dates

• Filing date: Dec 22, 2016
• Grant date: Aug 20, 2019
• Expiry date: Dec 22, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D2111/12
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A liquid surfactant composition can include a C9-C20 alkylbenzene sulfonate, a nonionic surfactant, and an anionic surfactant. The anionic surfactant can include a first alcohol ether sulfate (AES) surfactant and a second AES surfactant. The first AES surfactant can have a molecular formula of R1—O—(CH2—CH2—O)m—SO3M, wherein R1 represents a C10-C20 alkyl group, m represents a number from 6 to 8, and M represents a monovalent cation. The second AES surfactant can have a molecular formula of R2—O—(CH2—CH2—O)n—SO3M′, wherein R2 represents a C10-C20 alkyl group, n is 2 or 3, and M′ represents a monovalent cation. The first AES surfactant and the second AES surfactant can be present in the liquid surfactant composition at a weight ratio to provide the liquid surfactant composition with a fresh viscosity from about 350 centipoise (cPS) to about 550 cps.