| 摘要 |
<p>PURPOSE:To obtain a rubber roll adaptable to mass production, and low in friction and free from adhesiveness by forming a layer made of polyorganosiloxane having specified F-containing groups at least on the outermost part. CONSTITUTION:At least the outermost layer is made of the polyorganosiloxane having polyperfluorooxyalkylene groups or perfluoroalkyl groups on the side chains. This polyorganosiloxane is prepared by substituting the polyperfluorooxyalkylene groups, that is, polyoxyalkylene groups obtained by replacing all the hydrogen atoms by F atoms, or the like for parts of the side chains of the polyorganosiloxane, usually used for the silicone rubber, such as polydimethylsiloxane or polymethylphenylsiloxane, thus permitting the obtained rubber roll to be adaptable for mass production and to have the surface low in friction and antitackiness.</p> |
