Slide bearing comprising a primer system as adhesion promoter
AssigneeSaint-Gobain Performance Plastics Pampus GmbH
InventorOlaf Schmitjes
Life of this patent
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Abstract
A slide bearing can include a metal support, a primer layer, an adhesive layer applied directly thereto, and a sliding layer applied to the adhesive layer. The primer layer can include an oligomeric condensate of at least one silanol selected from the group having the formula: wherein x is 1 or 2, y is 0 or 1. The moieties R1 and R2 can be the same or different. The moieties R1 and R2 can be selected from the group consisting of methyl, ethyl, n-propyl, i-propyl, and a functionalized alkyl group R′—(CH2)z—, wherein z is at least 1. Slide bearings comprising a primer system based on silanol oligomeric condensates show improved peel strength than their analogous slide bearings lacking the primer system.
Claims12
A slide bearing comprising,
- a metal support;
- a primer layer, wherein the primer layer consists of at least one silanol, an oligomeric condensate of at least one silanol, or combination thereof, wherein the at least one silanol is selected from the group having the formula
- wherein x is 1 or 2, y is 0 or 1,
- wherein R1 and R2 are the same or different and are selected from the group consisting of methyl, ethyl, n-propyl, i-propyl, and a functionalized alkyl group R′—(CH2)z, wherein z is at least 1;
- an adhesive layer applied directly to the primer layer, wherein the adhesive layer is selected from the group consisting of perfluoroalkoxyethylene (PFA), tetrafluoroethylene-perfluoro(methyl vinyl ether) copolymer (MFA), ethylene tetrafluoroethylene (ETFE), tetrafluoroethylene-hexafluoropropylene (FEP), and any combination thereof;
- and a sliding layer.
Dependencies are inferred from the claim text.