Phosphate-free automatic dishwashing detergent compositions having a protease and a complexing agent
US11834634B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Dec 12, 2018 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Dec 12, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Y304/17
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A phosphate-free automatic dishwashing cleaning composition comprising i) a protease wherein the protease is a variant having at least 60% identity with the amino acid sequence of SEQ ID NO:1 and comprising at least one amino acid substitution (using the SEQ ID NO: 1 numbering) selected from the group consisting of X54T; X126A, D, G, V, E, K, I; X127E, S, T, A, P, G, C; and X128E, C, T, D, P, G, L, Y, N; and ii) from 10 to 50% by weight of the composition of a complexing agent system comprising from 0 to less than 30% by weight of the composition of citric acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.