| 摘要 |
PURPOSE:To provide a lighting fixture for a vehicle decreasing generation of a crack, by decreasing weld distortion in a connection part of the lighting fixture of which a lamp lens and a lamp body, constituted of resin are welded and connected to each other. CONSTITUTION:A soft rubber layer (a), mainly composed of acrylate having an alkyl group of 8 or less carbon number and a copolymerizable monomer, and a hard resin layer (b), mainly composed of methacrylate having an alkyl group of 4 or less carbon number, are used as a basic structural unit. The layers (a), (b) are arranged in a manner wherein the layer (b) is provided in the outermost layer, or therebetween, an intermediate layer polymer (c), mainly composed of methacrylate and acrylate, is arranged. Further, a lamp lens, formed of resin composition [III] comprising 99 to 1 pts.wt. multilayer structural polymer [I] and 1 to 99 pts.wt. methacryl resin [II] of 0.05 to 0.02mum grain size, and a lamp body, composed of resin composition [IV] thermally fusable with this resin composition [III], are connected to each other by thermal fusion. |
