Degradable chelants having sulfonate groups, uses and compositions thereof
AssigneeThe Dow Chemical Company
InventorsDruce K. Crump, David A. Wilson
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Abstract
New compounds are represented by Formula I: ##STR1## and salts and complexes thereof; wherein R is an alkyl group having at least one --SO.sub.3 H and at least one --OH; each R' is independently selected from hydrogen, an unsubstituted or inertly substituted alkyl group, an alkyl group substituted with a carbonyl group, with a carboxylic acid, salt or complexed carboxyl group, or an alkoxy group; R" is hydroxyalkyl and x+y+z=3 and are good chelants. The compounds are also biodegradable and are particularly useful in washing compositions, preferably containing detergents and in gas conditioning.
Claims19
A compound of Formula I or a salt or complex thereof wherein Formula I is:
- ##STR4## and salts and complexes thereof;
- wherein R is an alkyl group having at least one --SO.sub.3 H and at least one --OH;
- each R' is independently selected from hydrogen, an unsubstituted or inertly substituted alkyl group, an alkyl group substituted with a carbonyl group, with a carboxylic acid, salt or complexed carboxyl group, a hydroxyalkyl or an alkoxy group;
- R" is a hydroxyalkyl group;
- and x, y and z are integers, x and y each being at least 1, such that x+y+z=3.
Dependencies are inferred from the claim text.