Continuously coated multi-composition, multi-layered solid lubricant coatings based on polyimide polymer compositions
AssigneeHoneywell International Inc.
InventorsDave Narasimhan, Robert Sedath, Mathius P. Koljack, Wendy Nelson
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Abstract
A lubricant coating disposed between a substrate and a counter surface comprises a reaction layer immediately adjacent the substrate. A bonding layer is immediately adjacent the reaction layer, with the bonding layer comprising a first composition. A low friction, lubricious layer is immediately adjacent the bonding layer, with the lubricious layer comprising a second composition that is different from the first composition.
Claims37
A lubricant coating on a substrate, comprising:
- a reaction layer immediately adjacent said substrate;
- a bonding layer adjacent said reaction layer, said bonding layer comprising a first composition;
- and
- a lubricious layer immediately adjacent said bonding layer, said lubricious layer comprising a second composition that is different from said first composition.
A lubricant coating disposed between a substrate and a counter surface, comprising:
- a reaction layer immediately adjacent said substrate;
- a bonding layer immediately adjacent said reaction layer, said bonding layer comprising a first composition;
- and
- a lubricious layer immediately adjacent said bonding layer, said lubricious layer comprising a second composition that is different from said first composition.
A lubricant coating on a substrate, comprising:
- a bonding layer adjacent said substrate, said bonding layer comprising a first composition;
- a lubricious layer adjacent a side of said bonding layer that is opposite said substrate, the lubricious layer comprising a second composition, wherein there exists at least one component of the first composition and the second composition that is not common to both the first composition and the second composition;
- and
- a reaction layer between said bonding layer and said substrate.
A lubricant coating disposed between a substrate and a counter surface, comprising:
- a reaction layer immediately adjacent said substrate;
- a polymer bonding layer immediately adjacent said reaction layer, said bonding layer comprising a first composition;
- a polymer lubricious layer immediately adjacent said bonding layer, said lubricious layer comprising a second composition that is different from said first composition;
- said first composition comprising a bonding agent selected from the group consisting of boron nitride, tungsten sulfide, graphite fluoride, molybdenum sulfide, and mixtures thereof;
- and
- wherein the bonding agent is present at about 30 to 50 volume per cent.
A lubricant coating disposed between a substrate and a counter surface, comprising:
- a reaction layer immediately adjacent said substrate;
- a polymer bonding layer immediately adjacent said reaction layer, said bonding layer comprising a first composition;
- a polymer lubricious layer immediately adjacent said bonding layer, said lubricious layer comprising a second composition that is different from said first composition;
- said second composition comprising a friction agent selected from the group consisting of boron nitride, tungsten sulfide, graphite fluoride, and mixtures thereof;
- and
- wherein the friction agent is present at about 30 to 50 volume per cent.
Dependencies are inferred from the claim text.