Composition for improving dryness during wire sawing
View Patent ↗The invention provides a composition for slicing a substrate using a wire saw wherein the composition comprises a liquid carrier and an abrasive. The invention further provides methods of slicing a substrate using a wire saw and a composition.
1. A method of slicing a substrate, which method comprises:
(i) contacting the substrate with a composition comprising:
(a) a liquid carrier comprising at least about 50 wt. % water and about 0.1 wt. % to about 20 wt. % of a polyol, based on the weight of the liquid carrier;
(b) about 30 wt. % to about 60 wt. % of an abrasive suspended in the liquid carrier; and
(c) about 0.2 wt. % to about 10 wt. % of a thickener, wherein the thickener is a cellulose compound;
(ii) contacting the substrate and the composition with a wire saw, and
(iii) moving the wire saw, with the composition in contact therewith, relative to the substrate so as to abrade at least a portion of the substrate to slice the substrate.
2. The method of claim 1 , wherein the polyol is glycerol, polyethylene glycol, 1,6-hexanediol, pentaerythrite, or a combination thereof.
3. The method of claim 1 , wherein the polyol has a carbon chain of four or more carbons.
4. The method of claim 1 , wherein the polyol has a carbon atom to oxygen atom ratio of at least about 2.5:1.
5. The method of claim 1 , wherein the composition further comprises an oxidizing agent.
6. The method of claim 1 , wherein the composition further comprises calcium chloride, ammonium sulfate, aluminum nitrate, or combinations thereof.