Water soluble blast media containing surfactant
AssigneeChurch & Dwight Co., Inc.
InventorsBenny S. Yam, Amy L. Joseph, Anthony E. Winston, Keith A. Jones
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Abstract
A blast media for stripping contaminants from a solid surface comprises water soluble abrasive particles and a surfactant which reduces the amount of water soluble residues of blast media remaining on the targeted surface and which enables any residues which remain to be readily removed by fresh water.
Claims22
A particulate blast media for stripping contaminants from a solid surface consisting essentially of water soluble abrasive particles having an average size of from about 50 to 1000 microns in diameter and 0.05 to 3 wt. % relative to the amount of said abrasive particles of a surfactant, wherein the amount of abrasive particles above 1,000 microns does not exceed about 1% of the abrasive particles.
A particulate blast media for stripping contaminants from a solid surface consisting essentially of water soluble abrasive particles having an average size of from about 50 to 1,000 microns in diameter and an anionic surfactant, wherein the amount of abrasive particles above 1,000 microns does not exceed about 1% of the abrasive particles.
A particulate blast media for stripping contaminants from a solid surface consisting essentially of water soluble abrasive particles having an average size of from about 50 to 1,000 microns in diameter and a mixture of an anionic surfactant and a nonionic surfactant, wherein the amount of said abrasive particles above 1,000 microns does not exceed about 1% of the abrasive particles.
Dependencies are inferred from the claim text.