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    • 31. 发明授权
    • Method of producing stratiform articles and products
    • 生产层状制品和产品的方法
    • US6165404A
    • 2000-12-26
    • US133283
    • 1993-10-07
    • Andrea Savonuzzi
    • Andrea Savonuzzi
    • B29C33/42B29C45/14B29K23/00B29K105/06B29L31/30B32B5/28B32B7/02B32B27/32B60R13/02B29C61/02
    • B60R13/02B29C45/14811B29C2045/14844B29C2045/14901B29C2045/14909B29K2713/00B29K2715/003B29L2031/3014B29L2031/3041B60R13/0243B60R2013/0281B60R2013/0293
    • A method of producing self-supporting stratiform articles having a substrate layer formed of a thermoplastic polymer composition and at least one surface portion formed by a layer made of a cover material, such as a textile; the method comprises: providing a mould cavity in conformity with the article that is to be produced and having a female cavity portion and a male cavity portion; the female cavity portion has at least one surface in conformity with the covered surface portion; the method according to the invention is characterized by providing, for each covered surface portion, a preformed laminate comprising the cover layer and a thermoplastic shielding layer; the shielding layer acts as a permeation barrier protecting the cover layer against the hot polymer composition that will be injected for forming the substrate; the shielding layer may also act as a shrinkage buffer; the preformed laminate is substantially self-supporting and provides for safe positioning of its cover layer at a desired portion of the female mould and, hence, of the final article; because the shielding layer is formed of a material that is substantially compatible with the thermoplastic polymer composition of said substrate layer, i.e. can interfuse therewith, a firm bond between the cover layer and the substrate can be formed upon solidification.
    • 一种生产具有由热塑性聚合物组合物形成的基底层的自支撑层状制品的方法和由诸如纺织品的覆盖材料制成的层形成的至少一个表面部分; 该方法包括:提供与要制造的制品一致的模具腔,并具有阴腔部分和阳腔部分; 阴腔部具有至少一个与覆盖表面部分一致的表面; 根据本发明的方法的特征在于,为每个被覆盖的表面部分提供包括覆盖层和热塑性屏蔽层的预成型层压体; 屏蔽层用作渗透屏障,保护覆盖层免受将被注入以形成基底的热聚合物组合物; 遮蔽层也可以用作收缩缓冲液; 预成型的层压板基本上是自支撑的,并且提供其覆盖层在母模的所需部分以及因此最终制品的安全定位; 因为屏蔽层由与所述基底层的热塑性聚合物组合物基本上相容的材料形成,即可以与其粘接,所以可以在凝固时形成覆盖层和基底之间的牢固结合。