The present disclosure provides a vehicle window encapsulation structural member, a vehicle window, and a method for manufacturing the vehicle window encapsulation structural member. The vehicle window encapsulation structural member comprises an encapsulation member (1) and a memory alloy member (2) disposed in the encapsulation member (1), a deformation amount is preset for the memory alloy member (2), and the memory alloy member (2) is deformable according to the preset deformation amount between a high-temperature phase shape and a low-temperature phase shape, so that the encapsulation member (1) in a mounted state is adaptive to a vehicle body environment member (3). The present disclosure optimizes the reliability of the adaptability between the vehicle window encapsulation structure and the vehicle body environment member, saves the cost, and increases the feedback and the modification rate of the vehicle window encapsulation structure for the adaptation degree.

Processes are disclosed for separating a first layer from a remainder of a tapered multilayer interlayer sheet, in which the tapered multilayer interlayer sheet is heated, and thereafter the first layer is separated from the remainder of the tapered multilayer interlayer sheet by pulling the first layer and the remainder of the tapered multilayer interlayer sheet in different directions, in a defined orientation, without the tapered multilayer interlayer sheet wrinkling or tearing.