Composition for the treatment of leather

摘要

A leather treating composition comprises by weight: a phosphoric acid ester mixture obtained by reaction of a phosphatizing agent with a mixture comprising (i) an alpha, omega-dihydroxypoly-1-4C-alkylsiloxane and (ii) a 10-40C alcohol optionally having 0.5-10 mols. of alkylene oxide-derived units; and an oil and/or wax (20-35%). A leather treating composition comprises by weight: (a) a phosphoric acid ester mixture obtained by reaction of a phosphatizing agent with a mixture comprising (i) an alpha, omega-dihydroxypoly-1-4C-alkylsiloxane of 25[deg]C viscosity 200-20000 mPas and/or alpha, omega-dihydroxyalkyl-poly-1-4C-alkylsiloxane of viscosity 40-300 mPas as well as (ii) a 10-40C alcohol optionally having 0.5-10 mols. of alkylene oxide-derived units; and (b) an oil and/or wax (20-35%). An independent claim is also included for production of the composition by mixing (a) with (b) and optionally also an emulsifier and then adding water.