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    • 32. 发明申请
    • DIFFRACTIVE MICROSTRUCTURE AND A METHOD OF PRODUCING THE SAME
    • 衍射微结构及其生产方法
    • US20100327485A1
    • 2010-12-30
    • US12809510
    • 2008-12-17
    • Arto MaaninenPia Qvintus-LeinoSoili Peltonen
    • Arto MaaninenPia Qvintus-LeinoSoili Peltonen
    • B29C59/02B32B3/30B44F1/00B28B11/08
    • Diffractive microstructure comprising micro-protrusions or microgrooves or a combination thereof and method of producing the same. The microstructure is formed in a layer of a thermoplastic carbohydrate polymer or a polymer derived from a carbohydrate material, said polymer having a glass transition point of less than 210° C. The thermoplastic polymer is preferably selected from the group of native starch, dextrin, native hemicellulose, native cellulose, poly(lactic acid), polylactides, polycaprolactone, starch derivatives, dextrin derivatives, hemicellulose derivatives, cellulose derivatives, and mixtures thereof. The invention provides an inexpensive and reliable way of incorporating into the products safety markings, which allow for visual inspection or detection, such as holograms and barcodes.
    • 包含微突起或微槽或其组合的衍射微结构及其制造方法。 微结构形成在热塑性碳水化合物聚合物层或衍生自碳水化合物材料的聚合物中,所述聚合物的玻璃化转变点小于210℃。热塑性聚合物优选选自天然淀粉,糊精, 天然半纤维素,天然纤维素,聚(乳酸),聚丙交酯,聚己内酯,淀粉衍生物,糊精衍生物,半纤维素衍生物,纤维素衍生物及其混合物。 本发明提供了一种便宜且可靠的方式,将产品安全标记整合到允许目视检查或检测的产品中,例如全息图和条形码。