FIELD: chemistry.
SUBSTANCE: present invention relates to compositions used as dishwashing agents. Described is a dishwashing and kitchenware composition comprising (A) at least one compound selected from methyl glycine diacetate (MGDA) and glutamic acid diacetate (GLDA), as well as salts thereof; (B) at least one graft copolymer formed from (a) at least one grafting base selected from non-ion monosaccharides, disaccharides, oligosaccharides and polysaccharides, and side chains obtained by grafting, (b) at least one ethylenically unsaturated mono- or dicarboxylic acid and (c) at least one ethylenically unsaturated N-containing monomer with a constant cationic charge, selected from ethylenically unsaturated N-containing compounds, which form ammonium salts with anions such as sulphate, alkyl sulphates with 1–4 carbon atoms in alkyl, and halides, particularly with chloride, or mixtures of two or more monomers (c), and (C) at least one inorganic peroxide compound selected from sodium peroxodisulfate, sodium perborate and sodium percarbonate, wherein composition contains in total in range from 1 to 50 wt% of compound (A), in total in range from 0.1 to 4 wt% of graft copolymer (B) and in range from 1 to 20 wt% peroxide (C) in terms of each in terms of content of solid substance in corresponding composition. This composition is applied for washing utensils and kitchen utensils, as well as for washing objects, which have at least one surface of glass, which can be decorated or not decorated. Composition is obtained by a method consisting in mixing one or more steps of at least one compound (A), at least one graft copolymer (B) and at least one peroxide (C).
EFFECT: obtaining compositions which have very good sedimentation suppression, especially in products that do not contain phosphates, particularly on glass and which are also effective against persistent stains.
15 cl, 4 tbl
