Security document and method using invisible coded markings
    1.
    发明授权
    Security document and method using invisible coded markings 失效
    安全文件和使用隐形编码标记的方法

    公开(公告)号:US6138913A

    公开(公告)日:2000-10-31

    申请号:US981859

    申请日:1998-01-05

    IPC分类号: G06K19/14 G06K7/10

    CPC分类号: G06K19/14

    摘要: An invisible indicia or encoded information is imprinted on a substrate using a compound which produces a fluorescence at a wavelength greater than about 650 nm when exposed to near infrared radiation. The information covered by a layer of material that reflects or absorbs a substantial amount of the visible and UV radiation illuminating its surface.

    摘要翻译: PCT No.PCT / US97 / 20342 Sec。 371日期:1998年1月5日 102(e)日期1998年1月5日PCT 1997年11月5日PCT公布。 第WO98 / 22291号公报 日期1998年5月28日当暴露于近红外辐射时,使用产生大于约650nm的波长的荧光的化合物将无形标记或编码信息印在底物上。 由材料层覆盖的信息,其反射或吸收大量可见光和UV辐射照射其表面。

    Scanners for reading near infrared fluorescent marks
    4.
    发明授权
    Scanners for reading near infrared fluorescent marks 失效
    用于阅读近红外荧光标记的扫描仪

    公开(公告)号:US5959296A

    公开(公告)日:1999-09-28

    申请号:US880037

    申请日:1997-06-20

    IPC分类号: G02B6/38 G06K7/12 G06K7/10

    摘要: An apparatus for detecting an invisible, near infrared fluorescing mark disposed on a background comprises: includes an excitation source for exciting the mark, having sufficient power to excite the mark and provide a fluorescent signal the mark from a; a signal detector for detecting the fluorescent signal from the mark; a and power modulator means for varying the power if the excitation source between zero and the maximum power level to produce a decodable fluorescent signal from the mark disposed on the background. A process for decoding an invisible mark having a near infrared fluorescing material includes the steps of: providing at least one invisible, near infrared fluorescing mark disposed on at least one portion of a background; exciting the mark with a laser having a maximum power level sufficient to provide a fluorescent signal from the mark; detecting the fluorescent signal and concurrently varying the power of the laser between zero and its maximum power, to obtain a decodable fluorescent signal.

    摘要翻译: 用于检测设置在背景上的不可见的近红外荧光标记的装置包括:包括用于激发标记的激励源,具有足够的功率来激发标记并从a提供标记的荧光信号; 用于从标记检测荧光信号的信号检测器; a和功率调制器装置,用于如果激励源在零和最大功率水平之间改变功率,以从设置在背景上的标记产生可解码的荧光信号。 用于解码具有近红外荧光材料的不可见标记的方法包括以下步骤:提供设置在背景的至少一部分上的至少一个不可见的近红外荧光标记; 使用具有足以提供来自标记的荧光信号的最大功率电平的激光器来激发标记; 检测荧光信号并同时改变激光器在0和最大功率之间的功率,以获得可解码的荧光信号。

    Platelet particle polymer composite with oxygen scavenging organic cations
    5.
    发明授权
    Platelet particle polymer composite with oxygen scavenging organic cations 失效
    具有清除有机阳离子的血小板聚合物复合物

    公开(公告)号:US06610772B1

    公开(公告)日:2003-08-26

    申请号:US09630518

    申请日:2000-08-02

    IPC分类号: C08K334

    摘要: The present invention relates to oxygen scavenging compositions comprising a) platelet particles having attached thereto at least one oxygen scavenging organic cation and b) at least one oxidation catalyst. The oxygen scavenging compositions of the present invention maybe readily incorporated into a variety of matrix polymers to create polymer composites, which display improved passive barrier and oxygen scavenging capabilities. Articles formed from these composites are also disclosed.

    摘要翻译: 本发明涉及除氧组合物,其包含a)附着有至少一种除氧有机阳离子的b)至少一种氧化催化剂的血小板颗粒。 本发明的除氧组合物可以容易地并入各种基质聚合物中以产生聚合物复合材料,其显示改进的被动屏障和除氧能力。 还公开了由这些复合材料形成的制品。

    Polyether containing polymers for oxygen scavenging
    7.
    发明授权
    Polyether containing polymers for oxygen scavenging 失效
    用于除氧的聚醚聚合物

    公开(公告)号:US06455620B1

    公开(公告)日:2002-09-24

    申请号:US09630519

    申请日:2000-08-02

    IPC分类号: C08K506

    摘要: The present invention relates to oxygen scavenging compositions comprising an oxidation catalyst and at least one polyether selected from the group consisting of unsubstituted poly(alkylene glycol)s having alkylene chains of 1 to 3 carbon atoms, substituted or unsubstituted poly(alkylene glycol)s having alkylene chains of at least 4 carbon atoms, copolymers of poly(alkylene glycol)s, blends containing poly(alkylene glycol)s and mixtures thereof. The invention further relates to polymers containing said oxygen scavenging compounds and articles made therefrom.

    摘要翻译: 本发明涉及包含氧化催化剂和至少一种选自具有1至3个碳原子的亚烷基链的未取代的聚(亚烷基二醇),取代或未取代的聚(亚烷基二醇)的聚醚的氧清除组合物,其具有 至少4个碳原子的亚烷基链,聚(亚烷基二醇)的共聚物,含有聚(亚烷基二醇)的共混物及其混合物。 本发明还涉及含有所述除氧化合物和由其制成的制品的聚合物。