THICKENED AQUEOUS DETERGENT LIQUID

摘要

A thickened aqueous detergent liquid comprising: (i) at least 5 wt% of a surfactant system comprising anionic surfactant, (ii) at least 0.2 wt% of a thickening system comprising a linear copolymer formed by the addition polymerisation of: (A) 0.1 to 5 wt% of a first monomer consisting of an ethylenically unsaturated diacid of formula (I): HOOC-CR1=CR2-COOH (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 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, methyl, -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(=O)NH-, or CH2CH2NHC(=O)- Ar is divalent aryl; E is H or methyl; z is 0 or 1; k is an integer in the range of 0 to 30; and m is 0 or 1; with the proviso that when k is 0, m is 0, and when k is in the range of 1 to 30; m is 1; (R6O)n is polyoxyalkylene, which is a homopolymer, a random copolymer, or a block copolymer of C2-C4-oxyalkylene units, wherein R6 is C2H4, C3H6, C4H8, or a mixture thereof, and n is an integer in the range of 5 to 250;Y is -R6O-, -R6-, -C(=O)-, -C(=O)NH-, =R6NHC(=O)NH-, or -C(=O)NHC(=O)-; and R7 is substituted or unsubstituted alkyl selected from the group consisting of C8-C40 linear alkyl, C8-C40 branched alkyl, C8-C40 carbocyclic alkyl, C2-C40 alkyl-substituted, phenyl, aryl-substituted C2-C40 alkyl, and C8C80 complex ester; wherein the R7 alkyl group optionally comprises one or more substituents selected from the group consisting of hydroxy, alkoxy, and halogen.