Solid lubricant and composition
OwnerMichael J. Mitrovichinventor
Life of this patent
Estimating the term…
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.
Claims21
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.
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.
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.
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 1% to about 4% by volume of said synthetic extreme pressure anti-wear wear liquid oil;
- and
- (d) from about 0% to about 1% by volume of an optical brightener.
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) about 5% by volume of said synthetic extreme pressure anti-wear liquid oil;
- and
- (d) from about 0% to about 1% by volume of an optical brightener.
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) about 1% by weight of said optical brightener.
A solid lubricant composition comprising:
- (a) from about 25% to about 70% by volume of a high-density methylpentene;
- (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.
Dependencies are inferred from the claim text.