| 摘要 |
The invention concerns lubricating coatings for magnetic recording media. Prior lubricating coatings for flexible recording media have not been reliable at high temperatures and high relative humidity. Prior lubricating coatings for rigid recording disks have not been resistant to removal when cleaned. These problems are solved by a lubricant which is a fluorinated telechelic polyether polymer having at least one polar group such as -CHNHCH2CH2OH, -COOCH3, -CONNCH2C6H5, and -COCF3. The telechelic polymer preferably has a Ferranti-Shirley viscosity of 20-2000 centipose and a number average molecular weight of at least 1000. |
