Spring mvc request scope context across threads

Question

In a spring MVC web application, I wanna store user information at the request scope, in the filer or interceptor I will build the user information and store it and use it later within this request.I know in spring I can create request scope spring beans, but these beans can only be accessed within the request thread(maybe the child thread).However I will access the user information in the thread pool.So the build in request scope spring bean may not suitable for me. Any tip for store information share among threads within the request scope？