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US 6,602,834 B1Granted
Cutting and lubricating composition for use with a wire cutting apparatus
AssigneePPT Resaerch, Inc.
InventorsIrl B. Ward, Amy Ann Heller, Danielle Anne French, Susan Jane Broadway
Life of this patent
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Abstract
The invention provides a cutting and lubricating composition with abrasive particles for cutting hard and brittle workpieces with a wire saw or other cutting or grinding tool. The composition provides electrostatic and steric repulsion between the abrasive particles to maintain the particles in suspension without forming hard settled cakes from suspension “fall-out”.
Claims17
A particle repulsive suspension carrier composition for use in cutting workpieces of a hard and brittle material with a wiresaw, or other cutting or grinding tools comprising:
- a) a from about 0 to 10.0 weight percent of an ionized surfactant;
- b) from about 80 to 99 weight percent of a non-aqueous, non-ionic, polar solvent;
- c) a neutralized organic electrolyte or polyeletrolyte having the same surface charge as the surfactant in an amount necessary to create an electrical or electrostatic repulsive force on abrasive or other particles placed in said composition, and;
- d) from about 0.5 to about 10.0 weight percent of water, whereby particles are stabilized by electrostatic and steric repulsion.
1 more element
Dependencies are inferred from the claim text.