WASHING ANTIFREEZE LIQUID AND METHOD FOR PREPARATION THEREOF Russian patent published in 2014 - IPC C11D1/02 C11D1/66 C11D3/30 C11D3/20 

FIELD: chemistry.

SUBSTANCE: described is a washing liquid which can be used to clean car windscreens. The washing liquid contains, as a freezing point lowering component, methyl ether of propylene glycol, as well as an anionic surfactant, a nonionic surfactant, trilon B, a dye, a deodorant, triethanolamine, phosphoric acid and water. The method of preparing the washing liquid involves preparing a highly concentrated solution of methyl ether of propylene glycol in deionised water by mixing 90% methyl ether of propylene glycol and 10% deionised water. An anionic surfactant, a nonionic surfactant, trilon B, triethanolamine, phosphoric acid, an antifoaming agent, a deodorant, a dye and, optionally, ethylene glycol are then added to the obtained solution while stirring. Deionised water is added to the solution while stirring continuously and stirring continues until complete homogeneity, followed by filtration.

EFFECT: reduced metal corrosion and swelling of rubber components and paint coat.

4 cl, 5 tbl