COPOLYMERS, WHICH CONTAIN GROUPS OF CARBOXYLIC ACIDS, GROUPS OF SULPHONIC ACIDS AND POLYALKYLENEOXIDE GROUPS, AS SEDIMENTATION-PREVENTING ADDITIVE TO WASHING AND CLEANING SUBSTANCES Russian patent published in 2016 - IPC C08F216/14 C08F220/04 C08F228/02 C11D3/37 

FIELD: chemistry.

SUBSTANCE: copolymers are obtained from the following components, wt %: a1) from 30 to 90 of monoethylenically unsaturated carboxylic acid with 3-8 carbon atoms, anhydride or water-soluble salt of said acid, a2) from 3 to 60 of monomer, containing sulphonic acid groups, selected from 2-acryleamido-2-methylpropanesulphonic acid, allylsulphonic acid and their water-soluble salts. a3) from 3 to 60 of non-ionic monomer of formula H₂C=C(R¹)COO-[R²-O]_o-R³ (I), in which R¹ is hydrogen atom or methyl, R² are similar or different, linear or branched alkylene residues with 2-6 carbon atoms, which can be located in units or statistically, selected from ethylene and 1,2-propylene, and R³  is hydrogen atom or linear or branched alkyl residue with 1-4 carbon atoms, and o is natural number from 3 to 50, a4) from 0 to 30 of one or several other ethylene unsaturated monomers, polymerisable with c a1), a2) and a3). The sum of components a1), a2), a3) and a4) equals 100 wt %. Copolymers are applied in form of sedimentation-preventing additive in washing and cleaning substances. Cleaning composition contains the following components, wt %: from 1 to 20 of said copolymer, from 0 to 20 of polycarboxylates, from 0 to 50 of complexing agent, from 0 to 70 of phosphates, from 0 to 60 of other washing components and additional washing components, from 0.1 to 20 of non-ionogenic surface-active substances, from 0 to 30 of bleaching substances and if necessary bleaching activators and bleaching catalysts, from 0 to 8 of enzymes, from 0 to 50 of one or several other additional substances, such as anionic or zwitterionic surface-active substances, carriers of alkali properties, corrosion inhibitors, foam extinguishers, dyes, fragrances, filling agents, organic solvents, auxiliary preparations for tabletting, disintegrants, thickening agents, solubilisers, and water. The sum of all components equals 100 wt %.

EFFECT: invention makes it possible to obtain material to be washed in purified state without sediments and spots.

12 cl, 5 tbl, 10 ex