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US 8,802,602 B2Granted
Maintenance-free plain bearing
AssigneeSaint-Gobain Performance Plastics Pampus GmbH
InventorsOlaf Schmitjes, Joerg Heldmann
Life of this patent
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Abstract
A maintenance-free plain bearing includes a metal support, an intermediate layer applied directly thereto and a sliding layer applied to the intermediate layer. The intermediate layer includes at least one functionalized thermoplastic polymer having functional groups of the formula —COOH and/or —COOR, where the radicals R are cyclic or linear organic radicals having from 1 to 20 carbon atoms.
Claims21
A maintenance-free plain bearing comprising:
- a metal support;
- an intermediate layer applied directly thereto;
- and
- a sliding layer applied to the intermediate layer,
- wherein the intermediate layer comprises at least one functionalized thermoplastic polymer having functional groups, where the functional groups are incorporated into the thermoplastic polymer by addition of at least one modifying agent, wherein the modifying agent includes maleic acid, itaconic acid, citraconic acid, derivatives thereof, anhydride of maleic acid, anhydride of itaconic acid, anhydride of citraconic acid, or any combinations thereof.
2 more elements
A process for producing a maintenance-free plain bearing, comprising:
- joining the intermediate layer and the sliding layer over their area to the metal support under pressure and with introduction of heat,
- wherein the intermediate layer comprises at least one functionalized thermoplastic polymer having functional groups, where the functional groups are incorporated into the thermoplastic polymer by addition of at least one modifying agent, wherein the modifying agent includes maleic acid, itaconic acid, citraconic acid, derivatives thereof, or any combinations thereof.
Dependencies are inferred from the claim text.