| 摘要 |
<p>A laundry washing composition comprises:- (a) anionic surfactant (preferably branched); (b) a detergency enhancing polymer which is a homopolymer or copolymer containing one or more monomer units independently selected from those of formula (II) wherein -A- is selected from groups of formula -R?5-, -R5-(CO)-R6-, -R5¿-(CO)-O-R6, -R5-O-(CO)-R6-, -R5-(CO)-NH-R6-, -R5-NH-(CO)-R6-, wherein R?5 and R6¿ are independently absent, or represent C¿1-3? alkyl groups; R?1, R2 and R3¿ are independently selected from hydrogen, C¿1-3? alkyl, C1-3 alkenyl, hydroxy-C1-3 alkyl and C5-8 cycloalkyl groups; and R?4¿ is selected from groups as defined for A above; wherein R3 may also represent a bridging group to the group R4, said bridging group being selected from groups as defined for A above; and X - is a monovalent anion or an n'th part of an n-valent anion; (c) detergency builder; and (d) optionally, one or more other ingredients; wherein the weight ratio of anionic surfactant to builder is from 2:1 to 10 : 1, preferably from 3 : 1 to 7 : 1 and/or the weight ratio of branched anionic surfactant to builder is from 1:1 to 7:1.</p> |
