TH4206B - Mixture for bleaching - Google Patents

Abstract

This bleaching mixture consists of (a) an inorganic peroxide, (b) a non-ionic surface activator, and (c) a polymer of the following general formula (I), a copolymer containing the unit monomers of this general formula (I) or its water-soluble salts (chemical formula), where X, Y, and Z represent each ?H, CH3, -COOM, -CH2COOM, or ?OH, M represents H, an alkali metal, or a mixture of them, and n represents the least number of 2.

Claims (6)

1. Granular bleaching mixtures consisting of (a) 70 to 95% by weight of inorganic peroxides; (b) 0.1 to 10% by weight of at least one nonionic surface reactive agent selected from the group containing alkyl or alkenyl polyoxyethylene alkyl ethers with an average of 10 to 18 carbon atoms and containing 1 to 20 moles of ethylene oxide, and polyoxyethylene alkylphenyl ethers with alkyl groups having an average of 6 to 12 carbon atoms and containing 1 to 20 moles of ethylene oxide; and (c) 0.05 to 5% by weight of protease, with the special characteristic that it contains 0.05 to 10% by weight of acrylic acid salt polymers. 2. A granulated bleaching compound as per claim 1, the polymer of which is an acrylic acid salt is sodium polyacrylate. 3. Granular bleaching mixtures as per Patent 1 or 2, where this inorganic poroxide is a component or a mixture of compounds selected from a group consisting of percarbonate, perborate, Glauber's salt/common salt/H2O2 additives, urea/H2O2/gypsum additives and KHSO5, K2SO4, KHSO4. 4. Granular bleaching compound under claim 3, whereby this inorganic peroxide is sodium percarbonate. 5. Granular bleaching mixtures as claimed in one of the preceding claims, in which such polymers have a molecular weight of 200 to 100,000. 6. Granular bleaching mixtures as claimed in any of the preceding claims, in which (b) is at least one compound of polyoxyethylene dodecyl ether containing 12 mol of ethylene oxide or polyoxyethylene nonylphenyl ether containing 11 mol of ethylene oxide.