Low friction, abrasion-resistant bearing materials
View Patent ↗A friction-reducing abrasion resistant bearing material is described. The material comprises a monolithic, porous polytetrafluoroethylene (ePTFE) having dispersed therein a wear-resistant thermosetting or thermoplastic resin material.
1. A bearing article comprising:
a porous monolithic PTFE material, wherein said PTFE comprises two or more layers, and
at least one polymer resins selected from the group consisting of thermosetting resins and thermoplastic resins distributed within the pores of the PTFE material.
2. The bearing article of claim 1 , in the form of a tube.
3. The bearing article of claim 1 , wherein said at least one polymer resin comprises epoxy.
4. The bearing article of claim 1 , wherein said at least one polymer resin comprises polyimide.
5. The bearing article of claim 1 , in the form of a sheet.
6. A bearing article comprising:
a porous monolithic PTFE material, and
at least one wear resistant polymer resin distributed within the pores of the PTFE material, wherein said article further comprises a pressure sensitive adhesive bonded to said article.
7. A bearing article comprising:
a porous monolithic PTFE material, wherein said PTFE further includes at least one filler, and
at least one polymer resin selected from the group consisting of thermosetting resins and thermoplastic resins distribute within the pores of the PTFE material.
8. A bearing article comprising:
a porous monolithic PTFE material, and
at least one polymer resin selected from the group consisting of thermosetting resins and thermoplastic resins distributed within the pores of the PTFE material, wherein said article further comprises a pressure sensitive adhesive bonded to said article.
9. A bearing article comprising:
a porous monolithic PTFE material, and
at least one polymer resin selected from the group consisting of thermosetting resins and thermoplastic resins distributed within the pores of the PTFE material, said article further comprising at least one substrate bonded to said article.
10. The bearing article of claim 9 , wherein said at least one substrate comprises at least one material selected from the group consisting of metal and epoxy.
11. A bearing article comprising:
a porous monolithic PTFE material, wherein said PTFE material comprises two or more layers of PTFE, and
at least one wear resistant polymer resin distributed within the pores of the PTFE material.
12. The bearing article of claim 11 , wherein said at least one polymer resin comprises epoxy.
13. The bearing article of claim 11 , wherein said at least one polymer resin comprises polyimide.
14. The bearing article of claim 11 , in the form of a sheet.
15. The bearing article of claim 11 , in the form of a tube.
16. A bearing article comprising:
a porous monolithic PTFE material, wherein said PTFE further includes at least one filler, and
at least one wear resistant polymer resin distributed within the pores of the PTFE material.
17. A bearing article comprising:
a porous monolithic PTFE material, and
at least one wear resistant polymer resin distributed within the pores of the PTFE material, said article further comprising at least one substrate bonded to said article.
18. The bearing article of claim 17 , wherein said at least one substrate comprises at least one material selected from the group consisting of metal and epoxy.
19. A bearing article comprising:
a composite comprising porous monolithic PTFE material, and at least one polymer resin selected from the group consisting of thermoset resins and thermoplastic resins distributed within the pores of the PTFE material, wherein said PTFE comprises two or more layers of PTFE; and
a substrate bonded to said composite.
20. The bearing article of claim 19 , wherein said at least one polymer resin comprises a polyimide.
21. The bearing article of claim 19 , in the form of a wear-resistant surface.
22. The bearing article of claim 19 , in the form of a bearing.
23. The bearing article of claim 19 , in the form of a washer.
24. The bearing article of claim 19 , in the form of a clutch.
25. The bearing article of claim 19 , in the form of a tube.
26. The bearing article of claim 19 , in the form of a sheet.
27. The bearing article of claim 19 , in the form of a tensioning device.
28. The bearing article of claim 19 , wherein said at least one polymer resin comprises an epoxy.