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US 6,054,422 AGranted
Cutting and lubricating composition for use with a wire cutting apparatus
AssigneePPT Research, Inc.
InventorsIrl E. Ward, Phuong Tang
Life of this patent
Estimating the term…
Abstract
A lubricating composition which may contain up to 70 weight percent abrasive grit material for use with wire saw and slicing apparatus for cutting or slicing hard and brittle materials. The composition contains abrasive particles suspended in a mixture of high and low molecular weight polyalkylene glycols and a suspension agent. The viscosity of the composition is about 50 to 700 cps.
Claims23
A lubricating composition for use with a wire cutting apparatus comprising:
- a) from about 1 to 35 weight percent suspension agent;
- b) from about 65 to 99 weight percent of a combination of polyalkylene glycols wherein the alkylene substituent consists of 2 to 5 carbon atoms;
- and wherein said combination consists of from about 80 to 92 weight percent of a glycol having an average number molecular weight of about 200 to 600 and about 1 to 35 weight percent of a glycol having an average molecular weight of about 1000 to 5000, said composition having a viscosity of about 50 to 700 cps.
A lubricating composition comprising:
- a) from about 0 to 10 weight percent of a non-ionic surfactant;
- b) from about 1 to 20 weight percent of N-methyl pyrrolidone;
- c) from about 80 to 99 weight percent of a combination of polyethylene glycols;
- wherein said combination of polyethylene glycols consists of from about 87 to 90 weight percent of a polyethylene glycol having an average molecular weight of about 300 to 500 and 2 to 5 weight percent of a polyethylene glycol having an average molecular weight of about 1400 to 1600, said composition having a viscosity of about 50 to 700 cps.
1 more element
A cutting and lubricating composition comprising:
- A. from about 30 to 99 weight percent of a lubricating composition comprising:
- a. from about 1 to 20 weight percent suspension agent;
- b. from about 80 to 99 weight percent of a combination of polyalkylene glycols wherein the alkylene group consists of from 2 to 5 carbon atoms, wherein said combination consists of from about 80 to 92 weight of a glycol having an average number molecular weight of about 200 to 600 and about 1 to 35 weight percent of a glycol having an average number molecular weight of about 1000 to 5000;
- and
- B. from about 1 to 70 weight percent of an abrasive particle material;
- said composition having a viscosity of about 50 to 700 cps.
3 more elements
A cutting and lubricating composition comprising:
- a) about 15 weight percent silicon carbide;
- b) about 6.5 weight percent N-methyl pyrrolidone;
- c) about 78.5 weight percent of a combination of polyethylene glycols;
- wherein said combination consists of about 86.5-91.5 weight percent of polyethylene glycol 400 and about 8.5-13.5 weight percent of polyethylene glycol 1500 having a viscosity of about 600 to 650 cps at room temperature.
1 more element
Dependencies are inferred from the claim text.