CPC C08K 5/41 (2013.01) [C08F 2/22 (2013.01); C08F 4/40 (2013.01); C08K 5/1535 (2013.01); C08L 25/14 (2013.01); C08L 33/08 (2013.01)] | 5 Claims |
1. 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).
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