| 摘要 |
1416243 Fluoropolymer lubricating compositions P M IVANOV 1 Nov 1973 50866/73 Heading C3P An antifriction composition comprises a fluoropolymer and up to 52% of copper sulphide. In examples the polymer is polytetrafluoroethylene and other additives include cotton fibre or fabric, phenolformaldehyde and polyvinyl butyral resins, asbestos fibre and molybdenum disulphide. |
