CA2381627A1 - Solid lubricant and composition - Google Patents

Solid lubricant and composition Download PDF

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Publication number
CA2381627A1
CA2381627A1 CA002381627A CA2381627A CA2381627A1 CA 2381627 A1 CA2381627 A1 CA 2381627A1 CA 002381627 A CA002381627 A CA 002381627A CA 2381627 A CA2381627 A CA 2381627A CA 2381627 A1 CA2381627 A1 CA 2381627A1
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CA
Canada
Prior art keywords
volume
solid lubricant
polymeric carrier
lubricant composition
powder
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Granted
Application number
CA002381627A
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French (fr)
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CA2381627C (en
Inventor
Michael J. Mitrovich
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Mpl Innovations Inc
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Michael J. Mitrovich
Mpl Innovations, Inc.
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Publication of CA2381627A1 publication Critical patent/CA2381627A1/en
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/02Elements
    • C08K3/04Carbon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00Nanotechnology for materials or surface science, e.g. nanocomposites
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/30Sulfur-, selenium- or tellurium-containing compounds
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    • C10M111/00Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
    • C10M111/04Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential at least one of them being a macromolecular organic compound
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    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/50Medical uses

Abstract

A solid lubricant and composition useful for lubricating the flanges of locomotive wheels, railcar wheels, rail track and in applications where it is desirable to reduce friction when metal contacts metal. The solid lubricant having from about twenty-five percent to about seventy percent by volume of a polymeric carrier, about five to seventy-five percent by volume of organic and inorganic extreme pressure additives, about zero to twenty percent by volume synthetic extreme pressure anti-wear liquid oil, and about zero to one percent by volume optical brightener.

Claims (31)

1. A solid lubricant composition comprising:
(a) from about 25% to about 70% by volume of a polymeric carrier;
(b) from about 5% to about 75% by volume of a lubricant powder;
(c) from about 0% to about 20% by volume of a synthetic extreme pressure anti-wear liquid oil; and (d) from about 0% to about 1% by volume of an optical brightener.
2. The solid lubricant composition of claim 1, wherein said polymeric carrier is selected from the group consisting of: a linear low-density polyethylene, low density polyethylene, a polyolefin and a synthetic wax.
3. The solid lubricant composition of claim 1, consisting of from about 35% to about 39%
by volume of said polymeric carrier.
4. The solid lubricant composition of claim 1, wherein said polymeric carrier is selected from the group consisting of: a linear high-density polyethylene, high-density polyethylene, high-density polypropylene and high-density methylpentene.
5. The solid lubricant composition of claim 1, consisting of about 29% by volume of said polymeric carrier.
6. The solid lubricant composition of claim 1, wherein said lubricant powder is selected from one or more of the group consisting of graphite and molybdenum disulfide.
7. The solid lubricant composition of claim 6, wherein said lubricant powder comprises a mixture of graphite and molybdenum disulfide.
8. The solid lubricant composition of claim 7, wherein said lubricant powder consists of a mixture of 5 parts of molybdenum disulfide powder and 1 part graphite powder, by volume.
9. The solid lubricant composition of claim 1, consisting of about 60% by volume said lubricant powder.
10. The solid lubricant composition of claim 1, wherein said lubricant powder is selected from one or more of the group consisting of graphite, molybdenum disulfide, talc, mica, and calcium carbonate.
11. The solid lubricant composition of claim 1, consisting of about 65% by volume said lubricant powder.
12. The solid lubricant composition of claim 1, consisting of from about 1% to about 4% by volume of said synthetic extreme pressure anti-wear liquid oil.
13. The solid lubricant composition of claim 1, consisting of about 5% by volume of said synthetic extreme pressure anti-wear liquid oil.
14. The solid lubricant composition of claim 1, consisting of about 1% by weigh of said optical brightener.
15. A solid lubricant composition comprising two portions:
a first portion comprising:
(a) from about 25% to about 70% by volume of a first polymeric carrier;
(b) from about 5% to about 75% by volume of a first lubricant powder;
(c) from about 0% to about 20% by volume of a synthetic extreme pressure anti-wear liquid oil; and (d) from about 0% to about 1% by volume of an optical brightener;
a second portion comprising:
(a) from about 25% to about 70% by volume of a second polymeric carrier;
(b) from about 5% to about 75% by volume of a second lubricant powder;
(c) from about 0% to about 20% by volume of said synthetic extreme pressure anti-wear liquid oil; and (d) from about 0% to about 1 % by volume of said optical brightener;
wherein said second polymeric carrier has a higher melt flow temperature than said first polymeric carrier; and wherein said first polymeric carrier has a higher melt index than said second polymeric carrier.
16. The solid lubricant composition of claim 15, wherein said first polymeric carrier is selected from the group consisting of: a linear low-density polyethylene, low density polyethylene, a polyolefin and a synthetic wax.
17. The solid lubricant composition of claim 15, said first portion consisting of from about 35% to about 39% by volume of said first polymeric carrier.
18. The solid lubricant composition of claim 15, wherein said second polymeric carrier is selected from the group consisting of: linear high-density polyethylene, high-density polyethylene, high-density polypropylene and high-density methylpentene.
19. The solid lubricant composition of claim 15, said second portion consisting of about 29%
by volume of said polymeric carrier.
20. The solid lubricant composition of claim 15, wherein said first and second lubricant powders are one or more materials selected from the group consisting of graphite and molybdenum disulfide.
21. The solid lubricant composition of claim 20, wherein said first and second lubricant powders consist of mixtures of graphite and molybdenum disulfide.
22. The solid lubricant composition of claim 21, wherein said first lubricant powder consists of 5 parts molybdenum disulfide to 1 part graphite, by volume.
23. The solid lubricant composition of claim 15, said first portion consisting of about 60% by volume said first lubricant powder.
24. The solid lubricant composition of claim 15, said second portion consisting of about 65%
by volume said second lubricant powder.
25. The solid lubricant composition of claim 15, wherein said second lubricant powder is selected from one or more of the group consisting of graphite, molybdenum disulfide, talc, mica, and calcium carbonate.
26. The solid lubricant composition of claim 15, said first portion consisting of from about 1% to about 4% by volume of said synthetic extreme pressure anti-wear liquid oil.
27. The solid lubricant composition of claim 15, said second portion consisting of about 5%
by volume of said synthetic extreme pressure anti-wear liquid oil.
28. The solid lubricant composition of claim 15, each of said first and second portions consisting of from about 0% to about 1% by weigh of said optical brightener.
29. The solid lubricant composition of claim 15, wherein at least one of said first and second portions consists of from about 0% to about 1% by weight of said optical brightener.
30. A solid lubricant composition comprising two portions:
a first portion comprising:
(a) from about 35% to about 39% by volume of a first polymeric carrier;
(b) about 60% by volume of a first lubricant powder;
(c) from about 1% to about 4% by volume of a synthetic extreme pressure anti-wear liquid oil; and (d) about 1% by volume of an optical brightener;
a second portion comprising:
(a) from about 25% to about 70% by volume of a second polymeric carrier;
(b) from about 5% to about 75% by volume of a second lubricant powder;
(c) from about 0% to about 20% by volume of said synthetic extreme pressure anti-wear liquid oil; and (d) from about 0% to about 1% by volume of said optical brightener;
wherein said second polymeric carrier has a higher melt flow temperature than said first polymeric carrier; and wherein said first polymeric carrier has a higher melt index than said second polymeric carrier.
31. A solid lubricant composition comprising two portions:
a first portion comprising:
(a) from about 25% to about 70% by volume of a first polymeric carrier;
(b) from about 5% to about 75% by volume of a first lubricant powder;
(c) from about 0% to about 20% by volume of a synthetic extreme pressure anti-wear liquid oil; and (d) from about 0% to about 1% by volume of an optical brightener;
a second portion comprising:
(a) about 29% by volume of a second polymeric carrier;
(b) about 65% by volume of a second lubricant powder;
(c) about 5% by volume of said synthetic extreme pressure anti-wear liquid oil; and (d) about 1% by volume of said optical brightener;
wherein said second polymeric carrier has a higher melt flow temperature than said first polymeric carrier; and wherein said first polymeric carrier has a higher melt index than said second polymeric carrier.
CA2381627A 2001-04-13 2002-04-11 Solid lubricant and composition Expired - Fee Related CA2381627C (en)

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WO2002083822A3 (en) 2003-04-03
US20020151440A1 (en) 2002-10-17
AU2002314745A1 (en) 2002-10-28
US20040043908A1 (en) 2004-03-04
US20040219545A1 (en) 2004-11-04
CA2381627C (en) 2010-06-22
WO2002083822A2 (en) 2002-10-24
US6649573B2 (en) 2003-11-18

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