IP Library Granted Patent US 8,597,538
Granted Patent B2
US 8,597,538 · App. 13/133,857 · Granted Dec 3, 2013

Composition for improving dryness during wire sawing

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,597,538
App. No.
13/133,857
Granted
Dec 3, 2013
Kind
B2
Abstract

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.

Claims (12)

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.

Assignments (5)
RELEASE OF SECURITY INTEREST Recorded Jul 6, 2022
From: JPMORGAN CHASE BANK, N.A.
To: CABOT MICROELECTRONICS CORPORATION; QED TECHNOLOGIES INTERNATIONAL, INC.; FLOWCHEM LLC; KMG ELECTRONIC CHEMICALS, INC.; KMG-BERNUTH, INC.; MPOWER SPECIALTY CHEMICALS LLC; SEALWELD (USA), INC.; INTERNATIONAL TEST SOLUTIONS, LLC; CMC MATERIALS, INC.
Reel/Frame 060592/0260 →
CHANGE OF NAME Recorded Jan 13, 2021
From: CABOT MICROELECTRONICS CORPORATION
To: CMC MATERIALS, INC.
Reel/Frame 054980/0681 →
RELEASE OF SECURITY INTEREST Recorded Nov 16, 2018
From: BANK OF AMERICA, N.A.
To: CABOT MICROELECTRONICS CORPORATION
Reel/Frame 047587/0119 →
SECURITY AGREEMENT Recorded Nov 16, 2018
From: CABOT MICROELECTRONICS CORPORATION; QED TECHNOLOGIES INTERNATIONAL, INC.; FLOWCHEM LLC; KMG ELECTRONIC CHEMICALS, INC.; MPOWER SPECIALTY CHEMICALS LLC
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 047588/0263 →
NOTICE OF SECURITY INTEREST IN PATENTS Recorded Feb 16, 2012
From: CABOT MICROELECTRONICS CORPORATION
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 027727/0275 →