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US 12,251,906 B2Granted
Bearing laminate comprising a foam layer
AssigneeSaint-Gobain Performance Plastics Pampus GmbH
InventorsJulia Ziegler, Jens D. Speicher, Georges J. Moineau, Juergen Hartmann
Life of this patent
Estimating the term…
Abstract
A bearing laminate can include a metal support layer, a foam layer overlying the metal support layer, the foam layer including a polymeric foam; and a sliding layer overlying the polymeric foam layer, the sliding layer comprising a polymer matrix. Bearing articles made from the bearing laminate can have exceptional damping properties, such as a high damping ratio combined with a low dynamic stiffness.
Claims20
A bearing laminate comprising:
- a metal support layer, the metal support layer having a thickness of at least 0.1 mm and not greater than 2.0 mm;
- a foam layer overlying the metal support layer, the foam layer including a polymeric foam having a density of at least 0.2 g/cm3 and not greater than 0.9 g/cm3, a thickness of at least 0.1 mm and not greater than 2.0 mm, a pore volume from 0.4 cm3/g to 10 cm3/g, and an average pore size from 20 microns to 300 microns;
- a sliding layer overlying the polymeric foam layer, the sliding layer comprising a polymer matrix;
- and
- an adhesive layer between the foam layer and the sliding layer, the adhesive layer including a pressure sensitive adhesive or a hot melt adhesive, and each of which comprising an acrylate-based adhesive, an epoxy adhesive, an ethylene-vinyl acetate copolymer, a polyether-polyamide copolymer, or any combination thereof, and
- wherein the bearing laminate has a damping ratio of at least 10% and not greater than 50%.
3 more elements
A bearing article formed from a bearing laminate, the bearing laminate comprising:
- a metal support layer, the metal support layer having a thickness of at least 0.1 mm and not greater than 2.0 mm;
- a foam layer overlying the metal support layer, the foam layer including a polymeric foam having a density of at least 0.2 g/cm3 and not greater than 0.9 g/cm3, a thickness of at least 0.1 mm and not greater than 2.0 mm, a pore volume from 0.4 cm3/g to 10 cm3/g;
- a sliding layer overlying the polymeric foam layer, the sliding layer comprising a polymer matrix;
- and
- an adhesive layer between the foam layer and the sliding layer, the adhesive layer including a pressure sensitive adhesive or a hot melt adhesive, and each of which comprising an acrylate-based adhesive, an epoxy adhesive, an ethylene-vinyl acetate copolymer, a polyether-polyamide copolymer, or any combination thereof, and
- wherein the bearing laminate has a damping ratio of at least 10% and not greater than 50%.
3 more elements
Dependencies are inferred from the claim text.