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    • 11. 发明授权
    • Lamination by radiation through a ply
    • 通过辐射通过层层叠
    • US06569280B1
    • 2003-05-27
    • US09187702
    • 1998-11-06
    • Rajendra MehtaGary DollWatson GullettA. Dale Lakes
    • Rajendra MehtaGary DollWatson GullettA. Dale Lakes
    • B32B3128
    • B42D5/027Y10T428/14
    • A laminated product is provided including a carrier sheet, a polymeric film ply, a polymeric card ply, and a radiation-curable laminating adhesive. The polymeric film ply is secured to the carrier sheet and extends over a cut-out portion formed in the carrier sheet. The polymeric card ply is positioned within the cut-out portion. Either the film ply, the card ply, or both, are transparent to electromagnetic radiation. The radiation-curable laminating adhesive is positioned to secure the polymeric card ply to the exposed ply portion and comprises a bonding agent, a monomer, an oligomer, a tackifier, and a photocatalyst. The bonding agent is present in a quantity sufficient to improve the bonding characteristics of the adhesive composition. The monomer is present in a quantity sufficient to (i) increase the flexibility of the adhesive composition, and (ii) increase the tendency of the adhesive composition to release substantially cleanly from a surface to which it is bonded. The oligomer is present in a quantity sufficient to increase the dimensional stability of the adhesive composition. The tackifier is present in a quantity sufficient to increase the uncured tack of the adhesive composition. The photocatalyst is present in a quantity sufficient to increase the tendency of the adhesive composition to cure upon exposure to electromagnetic radiation.
    • 提供了包括载体片,聚合物膜层,聚合物卡片层和可辐射固化层压粘合剂的层压产品。 聚合物膜层被固定到载体片材上并且在形成于载体片材中的切口部分上延伸。 聚合物卡片层位于切口部分内。 电影层,卡片层或两者都对电磁辐射是透明的。 放射线固化的层压粘合剂被定位成将聚合物卡片层固定到暴露的帘布层部分,并且包括粘合剂,单体,低聚物,增粘剂和光催化剂。 粘合剂的存在量足以提高粘合剂组合物的粘结特性。 单体的存在量足以(i)增加粘合剂组合物的柔韧性,和(ii)增加粘合剂组合物从其结合的表面基本上干净地释放的趋势。 低聚物的存在量足以增加粘合剂组合物的尺寸稳定性。 增粘剂以足以增加粘合剂组合物的未固化粘性的量存在。 光催化剂的存在量足以增加粘合剂组合物在暴露于电磁辐射时固化的倾向。
    • 17. 发明授权
    • Process for the formation of a heat-transferable security stamp entirely free of non-aqueous solvents
    • 形成可传热安全印章的程序
    • US06410082B1
    • 2002-06-25
    • US09482672
    • 2000-01-13
    • William F. PinellRajendra MehtaHarry A. SeifertJohn M. Harden
    • William F. PinellRajendra MehtaHarry A. SeifertJohn M. Harden
    • B41M312
    • B41M3/14B41M3/12Y10S428/914Y10S428/915Y10T428/24802Y10T428/24843Y10T428/2486Y10T428/24876Y10T428/24893Y10T428/28Y10T428/2891
    • A heat-transferable security stamp is provided including a carrier sheet, a top coat layer, at least one design layer between the carrier sheet and the top coat layer, a release layer between the carrier sheet and the design layer, and a base coat layer between the release layer and the design layer. The release layer includes a water-borne release component. The base coat layer includes a water-borne base coat component. The design layer includes a water-borne design component. The top coat layer includes a water-borne top coat component. The carrier sheet is resistant to heat above a predetermined heat transfer temperature. The adhesive release component of the release layer is operative to secure the carrier sheet to the base coat layer at temperatures below the heat transfer temperature and to permit release of the carrier sheet from the base coat layer at temperatures above the heat transfer temperature. The base coat component of the base coat layer is operative to function as a barrier between the release layer and the design layer at temperatures above and below the heat transfer temperature. The design component of the design layer is operative to provide an indication of the presence of the security stamp. The top coat component is operative to adhere to a substrate upon contact with the substrate and upon application of heat above the heat transfer temperature. The recited water-borne components may be capable of being borne in water as an aqueous emulsion, an aqueous dispersion, or an aqueous solution.
    • 提供了一种可热转印的安全印章,包括载体片,顶涂层,载体片和顶涂层之间的至少一个设计层,载体片和设计层之间的剥离层,以及底涂层 在释放层和设计层之间。 脱模层包括水性释放组分。 底涂层包括水性底涂层组分。 设计层包括水底设计组件。 顶涂层包括水性面漆组分。 载体片材耐受高于预定传热温度的热量。 释放层的粘合剂释放组分可操作以在低于传热温度的温度下将载体片固定到底涂层,并且允许载体片从基底涂层在高于传热温度的温度下释放。 在高于和低于传热温度的温度下,底涂层的底涂层组分可用作隔离层和设计层之间的屏障。 设计层的设计组件可操作以提供安全印记的存在的指示。 顶涂层组分可操作以在与基底接触时粘附到基底上,并且在施加热量超过传热温度时。 所述水性成分可以作为水性乳液,水性分散体或水溶液而以水作为载体。