Less aggressive blast media formed from compacted particles
AssigneeChurch & Dwight Co., Inc.
InventorsBenny S. Yam, Amy L. Joseph, Keith A. Jones
Life of this patent
Estimating the term…
Abstract
A blast media for stripping contaminants from very soft and sensitive substrates comprises compacted abrasive particles which are formed by compacting very fine particles of the abrasive into larger particles which are friable and which will break apart into fine particles upon contacting the substrate surface.
Claims20
A process for removing contaminants from substrates comprising blast cleaning said substrates with a blast media comprising abrasive particles formed by compacting fine particles of said abrasive into larger particles, said abrasive particles having a Mohs hardness of from about 2.0 to about 5.0.
A process for removing contaminants from substrates comprising blast cleaning said substrates with a blast media comprising water soluble abrasive particles formed by compacting fine particles of said abrasive having an average diameter of from submicron to less than 200 microns into larger particles having an average diameter of from about 50 to 1,000 microns, said abrasive particles having a Mohs hardness of from about 2.0 to about 5.0.
Dependencies are inferred from the claim text.