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    • 4. 发明授权
    • Method of making a multi-level, expanded resinous product
    • 制造多层膨胀树脂产品的方法
    • US5728332A
    • 1998-03-17
    • US560597
    • 1995-11-20
    • Rudolf FrischMarina Gillis
    • Rudolf FrischMarina Gillis
    • B05D3/10B32B5/20B44C1/20C08J9/00D06N3/00D06N3/06D06N7/00B29C44/06
    • B05D3/107B32B5/20B44C1/205C08J9/0028D06N3/005D06N3/06D06N7/0015D06N7/0018Y10S264/82Y10T428/24496Y10T428/24504Y10T428/24612Y10T428/24802Y10T428/24901Y10T428/2495
    • A process for preparing multi-level, selectively expanded, resinous sheeting comprising: (A) providing a composite comprising a backing material and adhered thereto a layer of a foamable resin which contains a blowing agent; (B) forming a partially printed composite by applying to a portion of the surface of the layer a composition containing an accelerator which functions to lower the temperature at which the blowing agent decomposes and by applying to some, but not all, of the other portions of the surface of the layer a composition containing an inhibitor which functions to decrease the activity of the blowing agent; and (C) forming the multi-level, selectively expanded, resinous sheeting by raising the temperature of the printed composite to a level such that the blowing agent decomposes and the resin fuses, the decomposition of the blowing agent evolving gas which causes expansion of the foamable resin in the portion where the surface is not printed and expansion of the foamable resin in the portion where the surface is printed with said accelerator-containing composition, the latter portion being expanded to a greater extent than the former, and wherein the portion of the surface printed with said inhibitor-containing composition is unexpanded or expanded to a limited degree; and a resinous product having a printed base portion, an unprinted expanded portion elevated above the base portion and a printed expanded portion elevated above the unprinted expanded portion, the resin portion of the product being substantially uniform throughout the product.
    • 一种制备多层选择性膨胀的树脂片材的方法,包括:(A)提供包含背衬材料的复合材料并粘附到其上含有发泡剂的可发泡树脂层; (B)通过向层的表面的一部分施加含有促进发泡剂分解的温度降低促进剂的组合物,并施加到一些但不是全部的其它部分,形成部分印刷的复合材料 该层的表面含有抑制剂的组合物,其具有降低发泡剂活性的作用; 和(C)通过将印刷复合材料的温度升高到使发泡剂分解并使树脂熔化的水平,形成多层选择性膨胀的树脂片材,使发泡剂放出气体分解,导致膨胀 表面未被印刷的部分中的可发泡树脂和用所述含促凝剂组合物印刷表面的部分中的可发泡树脂的膨胀,后者部分被膨胀到比前者更大的程度,并且其中部分 用含有抑制剂的组合物印刷的表面未发泡或扩展到有限程度; 以及具有印刷基部的树脂产品,在基部上方升高的未印刷的膨胀部分和在未印刷的膨胀部分上方升高的印刷的膨胀部分,产品的树脂部分在整个产品中基本均匀。