Patents

Ecolab Patents Scale Control Agent

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By: TOM BRANNA

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US Patent No. 8,729,006 B2; Ecolab USA has been awarded a patent for its scale control composition for use in an alkaline environment. It is comprised of sodium carboxymethyl cellulose, a polymaleic acid polymer, copolymer, terpolymer, or combination of the same; a phosphonate; and a chelant. The ratio of the sodium carboxymethyl cellulose and polymer, copolymer, terpolymer, or combination of the same is between about 1:5 and about 5:1 by weight percent. The sodium carboxyethyl cellulose has a m...

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