| 摘要 |
PURPOSE:To provide a game ball having low frictional resistance in its rotation, excellent water and oil repulsing property and stain-proof property by forming a chemical adsorbing film chemically bonded by siloxane bond on the surface of the game ball so as to present alkyl group fluoride on the surface layer of the chemical adsorbing film. CONSTITUTION:A game ball is adapted to make contact with nonaqueous solvent including carbon group fluoride and chlorosilane group to make, for example, hydroxyl group 3 on the surface 2 of pinball 1 react on chlorosilyl group to deposit a monomolecular film 4 on the surface of a base material. The carbon fluoride system monomolecular film 4 haivng extremely small thickness of nanometer level is bonded chemically to the surface 2 of the pinball. The pinball can obtain low frictional resistance, excellent lubricating property, durability, water and oil repulsing property and stain-proof property without changing its dimensional acuracy. |
