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US 5,183,574 AGranted
Method of dispersing iron
AssigneeW. R. Grace & Co.-Conn.
InventorsChih M. Hwa, John A. Kelly, Wun T. Tai, Lai-Duien G. Fan, Robert P. Kreh, Brian Greaves
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Abstract
A method of comprising iron in an aqueous system comprising adding to the system a copolymer of styrene sulfonic acid and methacrylic acid or its water soluble salt in an amount effective to disperse the iron contained therein.
Claims6
A method of dispersing iron in an aqueous system comprising adding to the system a copolymer of styrene sulfonic acid and methacrylic acid or its water soluble salt in an amount effective to disperse the iron contained therein wherein said copolymer has a molar ratio of styrene sulfonic acid:
- methacrylic acid from 5:95 to 95:5.
Dependencies are inferred from the claim text.