Overlay material for plain bearing comprising filled fluorothermoplastic material
US6106936A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1997 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Dec 19, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31765
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A sliding bearing material contains a matrix material and an antifriction material composed of at least one fluorinated plastic material and fillers. The antifriction material contains as fillers 5 to 48% by volume boron nitride and 2 to 45% by volume of at least one metal compound with a stratified structure, the proportion of fluorinated thermoplastic material amounting to at least 50 to 85% by volume. The fluorinated thermoplastic material is a PTFE or PTFE with additives; M.sub.o S.sub.2, tungsten, sulphide, titanium sulphide or titanium iodide may be used as metal compounds. The matrix material may be a sintered bronze into which the antifriction material is incorporated or a thermoplastic material in which the antifriction material is finely distributed. The proportion of plastic matrix material in the whole sliding bearing material lies at 60 to 95% by volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.