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    • 4. 发明申请
    • AUTHENTICATION MEANS
    • 认证手段
    • WO2004087430A1
    • 2004-10-14
    • PCT/EP2004/003548
    • 2004-04-02
    • UCB, S.A.WANING, RichardMUKE, Sani
    • WANING, RichardMUKE, Sani
    • B41M3/14
    • B41M3/142
    • There is described a two part means of authenticating a polymeric film where the film contains one component a colourless additive and/or modification of the polymer which will react with the other component applied to the film by a suitable means (such as a pen) to form a visible colour change and thus authenticate the film. Suitable components include colourless benzene diammonium salts and anilines which react to form azo dyes; polyethylenimine (= PEI or mica) which fixes Eosin red stain applied to the film, (the colourless component incorporated onto the film surface by wash coating); particles to modify the film properties at the surface (such as silica particles can be treated with pH sensitive dyes such as crystal violet lactone); penetrating inks which penetrate a modified non-surface layer (e.g. containing nano-clay); and/or an encapsulated component which is released when pressure is applied to the film in use (e.g. on a package) to react with other component (e.g. in the film or wrapped package) to form a colour change. Films of the invention may be used in for example security documents and/or packaging (such as overwrap for tobacco products).
    • 描述了认证聚合物膜的两部分手段,其中膜含有一种无色添加剂的组分和/或聚合物的改性,该聚合物将通过合适的方法(例如笔)与施加到膜上的其它组分反应, 形成可见的颜色变化,从而认证电影。 合适的组分包括无色苯二铵盐和苯胺,其反应形成偶氮染料; 聚乙烯亚胺(= PEI或云母),其固定施加到膜上的曙红染色剂(通过洗涤涂布而结合到膜表面上的无色成分); 颗粒以改变表面的膜性质(如二氧化硅颗粒可用pH敏感染料如结晶紫内酯处理); 穿透改性的非表面层(例如含有纳米粘土)的渗透性油墨; 和/或当在使用中(例如在包装上)施加压力以与其它组分(例如在薄膜或包装的包装中)反应以形成颜色变化时释放的包封组分。 本发明的膜可以用于例如安全文件和/或包装(例如烟草制品的外包装)中。
    • 5. 发明申请
    • LABELLED ARTICLES AND USES THEREOF
    • 标签文章及其用途
    • WO2003030129A2
    • 2003-04-10
    • PCT/EP2002/010816
    • 2002-09-26
    • UCB, S.A.REGAN, ChristopherWANING, Richard
    • REGAN, ChristopherWANING, Richard
    • G09F
    • G07D7/14B01J2219/00378B01J2219/00497B01J2219/005B01J2219/00572B01J2219/00574B01J2219/00576B01J2219/00648B01J2219/00722B01J2219/00725B42D25/29C12Q1/6813G07F7/08G07F7/086G07F7/12C12Q2563/185
    • There is described a process for labeling an article and/or document for authentication purposes. The article or document (such as BOPP and/or cellulose film) incorporates therein particles having a taggant bound to the surface thereof. The preferred taggant is a DNA strand of at least eight (preferably 25) base pairs long attached to inorganic particles by the addition reaction between an acrylate group and a polar group such as amino or hydroxy. Alternatively silica particles can be modified by reacting first with aminopropyltriethoxy silane and then a reagent selected from: a diacid with a polyethylene glycol spacer group (e.g. polyethylene glycol dicarboxymethyl) succinic anhydride; and/or a diisothiocyanate (e.g. 1,4-phenylene diisothiocyanate (PDITC)) to form functional silica particles capable of reacting directly with a terminal amide and/or hydroxy group of an oligonucleotide such as DNA. The tagged particles can be detected by use of a fluorescent probe which hybridises with the DNA sequence selected tag the article or document.
    • 描述了用于为了认证目的而标记物品和/或文档的过程。 物品或文件(例如BOPP和/或纤维素膜)在其中掺入具有与其表面结合的标签的颗粒。 优选的标记物是通过丙烯酸酯基和极性基团如氨基或羟基之间的加成反应长期连接到无机颗粒上的至少八个(优选25个)碱基对的DNA链。 或者,二氧化硅颗粒可以首先与氨基丙基三乙氧基硅烷反应,然后与选自以下的试剂进行改性:二元酸与聚乙二醇间隔基(例如聚乙二醇二羧甲基)琥珀酸酐; 和/或二异硫氰酸酯(例如1,4-亚苯基二异硫氰酸酯(PDITC)),以形成能够直接与寡核苷酸例如DNA的末端酰胺和/或羟基反应的官能二氧化硅颗粒。 可以通过使用荧光探针检测标记的颗粒,所述荧光探针与选择的DNA序列杂交标记物品或文件。