公开(公告)号：US20080187741A1

公开(公告)日：2008-08-07

申请号：US12101355

申请日：2008-04-11

申请人： Joseph P. Vadala ,  Levi A. Kishbaugh ,  Kevin J. Levesque ,  David E. Pierick

发明人： Joseph P. Vadala ,  Levi A. Kishbaugh ,  Kevin J. Levesque ,  David E. Pierick

IPC分类号： B32B3/26 ,  B29C45/14 ,  C08J9/00

CPC分类号： B29C44/12 ,  B29C44/348 ,  B32B3/26 ,  B32B5/18 ,  Y10T428/249978

摘要： The invention provides in-mold decorated articles and methods to form the articles. The in-mold decorated articles include a polymeric portion having a substrate material adhered to a surface of the polymeric portion. The substrate material may be, for example, a film or a fabric. In some embodiments, the polymeric portion may be a foam and, particularly, a microcellular polymeric material. The articles are formed by injecting a mixture of blowing agent and polymeric material into a mold cavity in which the substrate material is disposed, so that the substrate material is forced against a wall of the mold cavity. The blowing agent, which in certain preferred cases is a supercritical fluid, decreases the viscosity of the polymeric material and, therefore, enables reductions in injection pressures and temperatures. Reduced injection temperature and pressure may widen the processing window, increase flexibility in the selection of substrate materials, and can eliminate the need for a barrier layer that is sometimes used in conventional processes. The method may be used to produce a variety of in-mold decorated articles.

摘要翻译： 本发明提供了模内装饰的物品和形成物品的方法。 模内装饰制品包括具有粘附到聚合物部分的表面上的基底材料的聚合物部分。 衬底材料可以是例如膜或织物。 在一些实施方案中，聚合物部分可以是泡沫，特别是微孔聚合材料。 通过将发泡剂和聚合物材料的混合物注入到其中设置有基底材料的模腔中而形成制品，使得基底材料被迫抵靠模腔的壁。 在某些优选情况下是超临界流体的发泡剂降低了聚合物材料的粘度，因此能够降低注射压力和温度。 降低的注射温度和压力可以加宽加工窗口，增加衬底材料选择的灵活性，并且可以消除对有时在常规工艺中使用的阻挡层的需要。 该方法可用于生产各种模内装饰物品。