| 摘要 |
PURPOSE:To obtain a vulcanized fluororubber molding reduced in friction properties and freed of stickiness, by coating said molding with a specified treating agent and treating it with water. CONSTITUTION:A vulcanized fluororubber molding is coated with a treating solution containing an amino group-containing alkoxysilane of formula I or II (wherein R is CH3-, CH3CH2- or the like, R1 is H2NCH2CH2CH2-, H2NCH2CH2 NHCH2CH2CH- or the like, R2 is CH3-, C6H5 or the like) an alkoxylsane of any one of formulas III-V [wherein R is CH3-, CH3CH2-, (CH3)2CH-, CH3CH2 CH2-, or the like, R1-2 are each CH3-, C6H5, H-, CH2=CH-, CF3CH2CH2-, C6H5CH2-, CH3CH2- or the like), etc., dried in air at 100 deg.C or below, treated to hydrolyze the compounds, dried and optionally heat-treated at 100-250 deg.C for several min to several tens of min.
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