Use of polymers in dishwashing compositions for the removal of grease and oil from plastic dishware, and dishwashing compositions

The present invention relates to the use of a copolymer comprising at least one first monomer and at least one second monomer, said first monomer being selected from the group of acrylate, substituted acrylate, maleate, or substituted maleate, and said second monomer being selected from styrene or substituted styrene, wherein the weight ratio of said first monomer to said second monomer is from 80:20 to 20:80; polyvinyl pyrrolidone; polyvinyl pyridine N-oxide; lignin-sulphonate; polyethylene-imine alkoxylates; and mixtures thereof; in dishwashing cleaning compositions for the removal of grease and oil from plastic dishware. The present invention also relates to a dishwashing cleaning composition, comprising from 0.0001% to 5% by weight of the composition of a copolymer comprising at least one first monomer and at least one second monomer, said first monomer being selected from the group of acrylate, substituted acrylate, maleate, or substituted maleate, and said second monomer being selected from styrene or substituted styrene, wherein the weight ratio of said first monomer to said second monomer is from 80:20 to 20:80, and from 10% to 60% by weight of the composition of a surfactant system, the surfactant system comprising at least 0.5% by weight of the composition of an amine oxide. The present invention also relates to a kit comprising a container and the dishwashing composition, and to a process of cleaning dishware using the dishwashing cleaning composition.