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US 9,624,119 B2Granted
Enhanced catalyst stability in activated peroxygen and/or alkaline detergent formulations
AssigneeEcolab USA Inc.
InventorsDavid Dotzauer, Thomas R. Mohs, Erin Hill
Life of this patent
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Abstract
Stabilized catalyst detergent compositions are provided in solid formulations of detergents including an active oxygen source and/or a highly alkaline detergent composition. The compositions are suitable for use with additional detergent and/or bleaching compositions while providing stabilized catalysts within a polymeric matrix. Methods or process for manufacturing the compositions, and methods of use for cleaning are disclosed.
Claims18
A solid stabilized catalyst detergent composition comprising:
- at least one alkalinity source;
- a stabilized catalyst consisting essentially of a polymeric matrix of a polymer and a catalyst according to the following formula:
- [(LpMnq)nXr]Ys, wherein the polymer is a water-soluble carboxylate comprising an acrylic acid/maleic acid copolymer, an acrylic acid polymer, polyvinylpyrrolidone polymer, or combinations thereof,
- wherein each L independently is an organic ligand containing at least three nitrogen atoms and/or at least two carboxyl groups that coordinate with the Mn metal;
- wherein each X independently is a coordinating or bridging group selected from the group consisting of H2O, OH−, SH−, HO2−, O2−, O22−, S2−, F−, Cl−, Br−, I−, NO3−, NO2−, SO42−, SO32−, PO43−, N3−, CN−, NR3, NCS−, RCN, RS−, RCO2−, RO−, and
- wherein R is a hydrogen or a C1 to C6 alkyl group;
- wherein p is an integer from 1 to 4;
- wherein q is an integer from 1 to 2;
- wherein r is an integer from 0 to 6;
- wherein Y is a counter ion;
- and
- wherein s is the number of counter ions,
- wherein said solid stabilized catalyst detergent composition is a solid block composition, and
- wherein the weight ratio of the polymer to the catalyst is from 20:1 to about 99.9:0.1 in the polymeric matrix.
11 more elements
A method of making a solid block stabilized catalyst detergent composition comprising:
- providing a polymer in a solvent, wherein the polymer is a water-soluble carboxylate comprising an acrylic acid/maleic acid copolymer, an acrylic acid polymer, polyvinylpyrrolidone polymer, or combinations thereof;
- providing a catalyst in a solvent, wherein the catalyst has the following formula:
- [(LpMnq)nXr]Ys, wherein each L independently is an organic ligand containing at least three nitrogen atoms and/or at least two carboxyl groups that coordinate with the Mn metal;
- wherein each X independently is a coordinating or bridging group selected from the group consisting of H2O, OH−, SH−, HO2−, O2−, O22, S2−, F−, Cl−, Br, I−, NO3−, NO2−, SO42−, SO32−, PO43−, N3−, CN−, NR3, NCS−, RCN, RS−, RCO2−, RO−, and
- wherein R is a hydrogen or a C1 to C6 alkyl group;
- wherein p is an integer from 1 to 4;
- wherein q is an integer from 1 to 2;
- wherein r is an integer from 0 to 6;
- wherein Y is a counter ion;
- and wherein s is the number of counter ions;
- combining the polymer and catalyst to form a solution;
- drying the solution of the polymer and catalyst to form a stabilized catalyst polymeric matrix;
- solidifying the stabilized catalyst polymeric matrix with at least one alkalinity source to form a hydrate solid block detergent composition,
- wherein the weight ratio of the polymer to the catalyst is from 20:1 to about 99.9:0.1 in the polymeric matrix.
11 more elements
Dependencies are inferred from the claim text.