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US 11,753,526 B2Granted
Synergistically active composition
AssigneeL. BrüGgemann GmbH & Co. KG
InventorsJosef Berghofer, Stefan Mark, Stefanie Enderle
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Abstract
The invention relates to a synergistically active composition which comprises a mixture of a sulfinic acid or a salt thereof and ascorbic acid or a salt thereof and the use of the composition as reducing agent. The reducing power of the composition of the invention is significantly higher than the reducing power of the single components.
Claims5
A composition comprising a weight ratio of component (a) to component (b) in the range of 3:1 to 1:3, wherein
- component (a) has the following composition, based on the total weight of component (a):
- 30 to 60 wt. % of a sodium salt of 2-hydroxy-2-sulfinatoacetic acid;
- 40 to 70 wt. % of a sulfonic acid of formula (I), a sodium salt thereof, or a mixture thereof;
- wherein
- R1 is H,
- R2 is —COOH;
- and
- n is 2,
- 0 to 20 wt. % of metal sulfite;
- and
- component (b) is sodium ascorbate;
- wherein the sodium salt of the sulfonic acid of formula (I) is the sodium salt of 2-hydroxy-2-sulfonatoacetic acid;
- and the sodium salt of 2-hydroxy-2-sulfonatoacetic acid is about 55 wt. % of component (a).
10 more elements
Dependencies are inferred from the claim text.