Water-soluble composition for removing rust from steel bar and steel frame
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United States of America Patent
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Feb 17, 2004
Grant Date -
Jun 19, 2003
app pub date -
Sep 18, 2002
filing date -
Sep 22, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to a water-soluble composition for removing rust from steel bars and steel frames, which is environmentally harmless and permits improving work efficiency by allowing work to be conducted in a state where rust was simply removed from the steel bars and frames by applying it on the steel bars or frames with a spray or brush. The rust-removing preparation of the present invention comprises a mixture of 10-11% by weight of phosphoric acid, 6-7% by weight of sodium pyrophosphate, 6-7% by weight of a hard water softener, 7-8% by weight of zeolite, 2-3% by weight of xanthan, 2-3% by weight of a surfactant, 4-5% by weight of stearic acid, 6-7% by weight of methyl alcohol and 2-3% by weight of a defoamer in 50-51% by weight of water.
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