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Corrosion Protector for Glassware in Dishwashers

Published November 30, -0001
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U.S. Patent No. 7,456,142 B2: Reckitt Benckiser N.V. has patented a process for the inhibition of corrosion of glassware in an automatic dishwashing process. It entails contacting the glassware with a zinc-containing, water-soluble glass composition comprising from 41-54 mole percent of P2O5, 10-30 mole percent of alkali metal oxides, up to 5 mole percent of SO3 and up to 25 mole percent of ZnO.

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