Thickened aqueous detergent liquid

US10316273B2 · kind B2 · utility

Assignee

• Conopco, Inc. · US

Inventors

• Andrew David Green · Stockton, GB
• Adam Peter Jarvis · Tarporley, GB
• Philip M. Ryan · Hopewell Junction, US
• Matthew R. Thomas · Austin, US
• Peter William Wills · Warrington, GB

Key dates

• Filing date: Jan 7, 2016
• Grant date: Jun 11, 2019
• Expiry date: Jan 7, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/0036
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A thickened aqueous detergent liquid composition comprising: (i) at least 5 wt % (more preferably at least 10%, more preferably at least 15% and most preferably at least 20% wt.) of a surfactant system comprising anionic surfactant, (ii) a thickening system comprising a copolymer formed by the addition polymerisation of: (A) 0 to 5 wt % of a first monomer consisting of an ethylenically unsaturated diacid of formula (I): or an unsaturated cyclic anhydride precursor of such an ethylenically unsaturated diacid, the anhydride having formula (II) where R1 and R2 are individually selected from H, C1-C3 alkyl, phenyl, chlorine and bromine; (B) 15 to 60 wt % of a second ethylenically unsaturated monoacidic monomer consisting of (meth)acrylic acid; (C) 30 to 70 wt % of a third ethylenically unsaturated monomer consisting of C1-C8 alkyl ester(s) of (meth)acrylic acid; (D) 1 to 25 wt %, of a fourth ethylenically unsaturated monomer, consisting of surfmer of formula (III): wherein each R3 and R4 are each independently selected from H, C1-3 alkyl, —C(═O)OH, or —C(═O)OR5; R5 is a C1-C30 alkyl; T is —CH2C(═O)O—, —C(═O)O—, —O—, —CH2O—, —NHC(═O)NH—, —C(═O)NH—, —Ar—(CE2)z-NHC(═O)O—, —Ar—(CE2)z-NHC(═…