| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject bag having improved slipperiness in contacting surface with a tire in the surface direction by bringing a rubber which has an active hydrogen on the surface into contact with a silicon compound and forming a silicon structure on the surface of the rubber. SOLUTION: This bag is formed out of a rubber having a structure having active hydrogens present on the surface and at least a part of the hydrogens is substituted with a silicon-containing group. The rubber like this is obtained by the method in which the bag for the tire comprising the rubber (e.g. a fluorocarbon rubber) having an active hydrogen on the surface is brought into contact with a silicon compound, preferably butoxysilanetriisocyanate, tetraisocyanatesilane, etc. As a result, the bag can be prevented from clinging to the tire when carrying out vulcanization and molding. Similarly, the metallic timber having the silicon structure formed on the surface of the metal is obtained by bringing the metal having the active hydrogen on the surface into contact with the before silicon compound, and the metallic timbers are prevented from clinging to each other. |
