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US 11,110,121 B2Granted
Compositions comprising hydrogen peroxide or hydrogen peroxide donor substances
AssigneeClariant International Ltd.
InventorsPeter Klug, Maurice Frederic Pilz, Ute Back
Life of this patent
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Abstract
A description is given of compositions comprising a) one or more substances selected from the group consisting of hydrogen peroxide and hydrogen peroxide donor substances, b) water, c) one or more polymers having thickening properties and d) one or more substances selected from the group consisting of hydroxypyridones and salts thereof. The compositions are notable more particularly for their advantageous shelf lives.
Claims26
A composition comprising
- a) 1% to 10% by weight of at least one substance selected from the group consisting of hydrogen peroxide and hydrogen peroxide-releasing substances;
- b) water;
- c) at least one polymer having at least one thickening property and having a molecular weight of more than 5000 g/mol;
- and
- d) 0.5 to 1000 ppm of at least one substance selected from the group consisting of compounds of the formula (I) and salts thereof
- in which R1 is H or a C1-C4 alkyl radical and R2 is H, an unsubstituted or halogen-substituted, branched or unbranched C1-C20 alkyl radical, an unsubstituted or halogen-substituted C5-C8 cycloalkyl radical, an unsubstituted or halogen-substituted C6-C10 aryl radical or an unsubstituted or halogen-substituted, branched or unbranched C7-C20 aralkyl radical;
- wherein the viscosity of the composition is 50 to 100000 mPa·s at 20° C., and wherein the pH of the composition is in the range of 2-7, and wherein the substance selected from the group consisting of compounds of the formula (I) and salts thereof is present in an amount such that the composition exhibits a viscosity stability over 4 weeks from formulation at 40° C. of at least 68%.
4 more elements
A composition comprising
- a) 1% to 10% by weight of at least one substance selected from the group consisting of hydrogen peroxide and hydrogen peroxide-releasing substances;
- b) water;
- c) at least one polymer having at least one thickening property and having a molecular weight of more than 5000 g/mol;
- and
- d) 0.5 to 1000 ppm of at least one substance selected from the group consisting of compounds of the formula (I) and salts thereof
- in which R1 is H or a C1-C4 alkyl radical and R2 is H, an unsubstituted or halogen-substituted, branched or unbranched C1-C20 alkyl radical, an unsubstituted or halogen-substituted C5-C8 cycloalkyl radical, an unsubstituted or halogen-substituted C6-C10 aryl radical or an unsubstituted or halogen-substituted, branched or unbranched C7-C20 aralkyl radical, the at least one substance being present in an amount to stabilize the viscosity of the composition relative to an identical composition lacking the at least one substance;
- wherein the viscosity of the composition is 50 to 100000 mPa·s at 20° C., and wherein the pH of the composition is in the range of 2-7, and wherein the substance selected from the group consisting of compounds of the formula (I) and salts thereof is present in an amount such that the composition exhibits a viscosity stability over 4 weeks from formulation at 40° C. of at least 68%.
4 more elements
Dependencies are inferred from the claim text.