Imaging medium
    11.
    发明授权
    Imaging medium 失效
    成像介质

    公开(公告)号:US5453345A

    公开(公告)日:1995-09-26

    申请号:US141852

    申请日:1993-10-22

    摘要: Acid can be generated by exposing a mixture of a superacid precursor and a dye to actinic radiation of a first wavelength which does not, in the absence of the dye, cause decomposition of the superacid precursor to form the corresponding superacid, thereby causing absorption of the actinic radiation and decomposition of part of the superacid precursor, with formation of a protonated product derived from the dye, then irradiating the mixture with actinic radiation of a second wavelength, thereby causing decomposition of part of the remaining superacid precursor, with formation of unbuffered superacid. Preferably, following these irradiations, the imaging medium is heated while the superacid is admixed with a secondary acid generator capable of being thermally decomposed to form a second acid, the thermal decomposition of the secondary acid generator being catalyzed by the presence of the superacid. The acid generation process may be used for imaging by bringing the superacid or second acid into contact with an acid-sensitive material which changes color on contact with acid, or the superacid may be used to trigger polymerization, depolymerization or other reactions.

    摘要翻译: 可以通过将超强酸前体和染料的混合物暴露于第一波长的光化辐射而产生酸,在第一波长的光化辐射下,在不存在染料的情况下,超级酸性前体不会分解形成相应的超强酸,从而引起吸收 光化辐射和部分超酸前体的分解,形成衍生自染料的质子化产物,然后用第二波长的光化辐射照射混合物,从而导致部分剩余的超酸前体分解,形成无缓冲的超酸 。 优选地,在这些照射之后,加热成像介质,同时将超强酸与能够热分解形成第二酸的次级酸发生剂混合,二次酸产生剂的热分解由超强酸的存在催化。 酸生成方法可以通过使超酸或第二酸与酸接触改变颜色的酸敏感材料接触而使用,或者超酸可用于引发聚合,解聚或其它反应。

    Liquid crystal compounds having ether tail moiety
    13.
    发明授权
    Liquid crystal compounds having ether tail moiety 失效
    具有醚尾部分的液晶化合物

    公开(公告)号:US5132041A

    公开(公告)日:1992-07-21

    申请号:US61072

    申请日:1987-06-23

    摘要: Disclosed are smetic liquid crystal compounds exhibiting ferroelectric behavior and having the formulaR.sup.1 --OR.sup.2).sub.a O--R.sup.3).sub.b Z--R*wherein R.sup.1 is alkyl or alkoxyalkyl, R.sup.2 and R.sup.3 are each alkylene, a is an integer of at least one, b is zero or one, R* is an optically active group containing an asymmetric center and --Z-- is an organic divalent core radical having parallel or coaxially extending bonds at the terminal ends thereof, the core radical having an axial ratio of at least two and being characterized by an essentially rigid and flat molecular structure. Presence of the ether-interrupted hydrocarbon tail moiety at the terminal end of the compounds provides a lowering in observed temperatures of phase transition.

    摘要翻译: 公开了具有铁电性能并且具有式R1-OR2)的芳族液晶化合物,其中R1是烷基或烷氧基烷基,R2和R3各自是亚烷基,a是至少一个的整数,b是 0或1,R *是含有不对称中心的光学活性基团,-Z-是在其末端具有平行或同轴延伸的键的有机二价核心基团,所述核心基团具有至少两个的轴比,并且为 其特征在于基本上刚性和平坦的分子结构。 在化合物末端存在醚中断的烃尾部分提供观察到的相变温度的降低。

    Reactive materials for limited play optical devices and methods of making same
    17.
    发明授权
    Reactive materials for limited play optical devices and methods of making same 失效
    有限播放光学装置的反应性材料及其制造方法

    公开(公告)号:US07026029B2

    公开(公告)日:2006-04-11

    申请号:US10651627

    申请日:2003-08-29

    IPC分类号: B32B3/02

    摘要: Methods and apparatus are provided for making an optically readable storage media in which the reading beam passes through a bonding layer configured with a reactive material that transforms from an optically transparent state to an optically opaque state after exposure to a predefined stimulus, thereby inhibiting access to the data encoded on the optically readable storage media. The method includes steps of synthesizing a blocked dye combining the blocked dye with a carrier material curing the resultant combination deblocking the dye to produce a reduced dye in the resultant bonding layer exposing the optically readable storage media with the reactive material in its bonding layer to a predetermined stimulus. In a further aspect of the present invention methods and apparatus are provided for making an optically readable storage media wherein the reading light passes through the bonding layer and the data encoded information is encoded on the L1 substrate. In yet another aspect of the present invention methods and apparatus are provided for making an optically readable storage media with at least two mechanisms for limiting access to the encoded data of the optically readable storage media.

    摘要翻译: 提供了用于制造光学可读存储介质的方法和装置,其中读取光束通过配置有在暴露于预定义的刺激之后从光学透明状态转换到光学不透明状态的反应性材料的结合层,从而禁止访问 编码在光学可读存储介质上的数据。 该方法包括以下步骤:合成封闭的染料与封端染料组合的载体材料,固化所得组合物解封染料以在所得粘合层中产生还原染料,将光学可读存储介质与其粘结层中的反应性材料暴露于 预定刺激。 在本发明的另一方面,提供了用于制造光学可读存储介质的方法和装置,其中读取光通过结合层,并且数据编码信息被编码在L1基板上。 在本发明的另一方面,提供了用于制造具有用于限制对光学可读存储介质的编码数据的访问的至少两种机制的光学可读存储介质的方法和装置。

    Process and composition for generation of acid
    19.
    发明授权
    Process and composition for generation of acid 失效
    生成酸的方法和组成

    公开(公告)号:US6110638A

    公开(公告)日:2000-08-29

    申请号:US757195

    申请日:1996-11-27

    摘要: A process for generation of acid uses a medium comprising a first acid-generating component capable of generating a first acid, and a secondary acid generator, this secondary acid generator being capable of thermal decomposition to form a secondary acid, the thermal decomposition of the secondary acid generator being catalyzed by the first acid. At least part of the medium is exposed to so as to cause formation of the first acid from the first acid-generating component; and the medium is then heated to cause, in the exposed part of the medium, acid-catalyzed thermal decomposition of the secondary acid generator and formation of the secondary acid. The secondary acid generator has a first site bearing a first leaving group and a second site bearing a second leaving group, the first leaving group being capable of protonation by the first acid, with expulsion of the first leaving group, followed by loss of a proton from the secondary acid generator to form an unstable intermediate, which then fragments with loss of the second leaving group, accompanied by either (a) loss of a second proton; or (b) addition of a proton-containing nucleophile, followed by loss of a proton, the second leaving group, in combination with a proton, forming the secondary acid. Preferred variants of the process are of the types described in U.S. Pat. Nos. 5,286,612; 5,334,489; 5,395,736; 5,441,850 and 5,453,345.

    摘要翻译: 酸的制造方法使用包含能够产生第一酸的第一产酸成分的培养基和二次酸发生剂,该二次酸发生剂能够热分解形成二次酸,二次酸的热分解 酸发生剂由第一种酸催化。 介质的至少一部分被暴露以便从第一产酸组分形成第一种酸; 然后将介质加热以在介质的暴露部分中引起二次酸发生器的酸催化热分解和二次酸的形成。 二次酸产生器具有带有第一离去基团的第一位点和带有第二离去基团的第二位点,第一离去基团能够被第一酸质子化,同时排出第一离去基团,然后丢失质子 从次级酸产生器形成不稳定的中间体,然后随着第二离去基团的损失而断裂,伴随着(a)第二质子的损失; 或者(b)加入含质子的亲核试剂,然后与质子组合丢失质子,第二离去基团与质子结合,形成二次酸。 该方法的优选变体是在美国专利No. 第5,286,612号; 5,334,489; 5,395,736; 5,441,850和5,453,345。