利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

21 条记录 (耗时 0.017 秒)

    Fluorescent brighteners, methods of preparation thereof, fluorescent brightener compositions, and methods of preparation and uses thereof
    13.
    发明授权
    Fluorescent brighteners, methods of preparation thereof, fluorescent brightener compositions, and methods of preparation and uses thereof 有权
    荧光增白剂，其制备方法，荧光增白剂组合物及其制备方法和用途

    公开(公告)号：US08183310B2

    公开(公告)日：2012-05-22

    申请号：US12561764

    申请日：2009-09-17

    申请人： Shantaram Narayan Naik ,  Adil Minoo Dhalla ,  Yogendrasinh Bharatsinh Chauhan

    发明人： Shantaram Narayan Naik ,  Adil Minoo Dhalla ,  Yogendrasinh Bharatsinh Chauhan

    IPC分类号： C08K5/3437

    CPC分类号： C08K5/3437 ,  C07D221/06 ,  C07D221/14 ,  C08K5/0041 ,  C08L21/00

    摘要： A compound of Formula (I) wherein R1, R2, and R3 are independently at each occurrence hydrogen, a halogen, a cyano functionality, a C1-C20 aliphatic functionality, a C3-C10 cycloaliphatic functionality or a C3-C20 aromatic functionality, with the proviso that R2 and R3 are not hydrogen when R1 is a methyl or hydrogen; R4 and R5 are independently at each occurrence hydrogen, a halogen, a cyano functionality, a C1-C20 aliphatic functionality, a C3-C10 cycloaliphatic functionality or a C3-C10 aromatic functionality; R7 and R8 are independently at each occurrence, a halogen, a cyano functionality, a C1-C20 aliphatic functionality, a C3-C10 cycloaliphatic functionality or a C3-C10 aromatic functionality; R6 is a C2-C20 aliphatic functionality, a C3-C10 cycloaliphatic functionality or a C3-C20 aromatic functionality; and “n” and “m” are each independently integers having a value of 0 to 3.

    摘要翻译： 式（I）的化合物，其中R 1，R 2和R 3在每次出现时独立地为氢，卤素，氰基官能团，C 1 -C 20脂族官能团，C 3 -C 10脂环族官能团或C 3 -C 20芳族官能团，与 条件是当R 1是甲基或氢时，R 2和R 3不是氢; R4和R5各自独立地为氢，卤素，氰基官能团，C 1 -C 20脂族官能团，C 3 -C 10脂环族官能团或C 3 -C 10芳族官能团; R 7和R 8在每次出现时独立地为卤素，氰基官能团，C 1 -C 20脂族官能团，C 3 -C 10脂环族官能团或C 3 -C 10芳族官能团; R 6是C 2 -C 20脂族官能团，C 3 -C 10脂环族官能团或C 3 -C 20芳族官能团; “n”和“m”各自独立地为0〜3的整数。

    High purity 4,4′-isopropylidene-bis-(2,6 dibromophenol) and process for the preparation of such high purity 4,4′-isopropylidene-bis-(2,6 dibromophenol)
    15.
    发明授权
    High purity 4,4′-isopropylidene-bis-(2,6 dibromophenol) and process for the preparation of such high purity 4,4′-isopropylidene-bis-(2,6 dibromophenol) 有权
    高纯度4,4'-异亚丙基 - 双（2,6-二溴苯酚）和制备高纯度4,4'-异亚丙基 - 双（2,6-二溴苯酚）

    公开(公告)号：US06613947B1

    公开(公告)日：2003-09-02

    申请号：US10168454

    申请日：2002-10-21

    申请人： Shantaram Narayan Naik ,  Dharma Ratnakar Ramdas Naik ,  M. Madhusudan Rao

    发明人： Shantaram Narayan Naik ,  Dharma Ratnakar Ramdas Naik ,  M. Madhusudan Rao

    IPC分类号： C07C3916

    CPC分类号： C07C37/62 ,  C07C39/367 ,  H05K1/0373

    摘要： A high purity 4,4′-isopropylidine-bis-(2,6-dibromophenol) characterised by ionic bromides less than 10 ppm, colour in alkaline solution from 60-100 HU, HPLC purity about 99.9%, APHA of 20% MeOH solution less than 10.0 HU, Fe less than 1.0 ppm, turbidity of 20% MeOH solution less than 5 NTU, pH of 10% slurry 6.0-7.0, size of the crystal particles, 250 to 280 microns with angle of repose lower than 30°. The product is produced by reacting Bisphenol-A with bromine in a “water-immiscible” polar solvent in the presence of hydrogen peroxide, aging the reaction products after the reaction, eliminating the excess bromine by reducing agents, washing the product layer with a combination of anionic surfactant, alkali, reducing agent and demineralised water under controlled pH conditions, partially distilling the organic solvent chilling the medium containing the product, filtering the crude product, boiling the crude product with alkali, reducing agent and demineralised water, filtering the TBBA, washing the product with demineralised water and drying to obtain the final high purity TBBA with high yield.

    摘要翻译： 高纯度4,4'-异丙基 - 双 - （2,6-二溴苯酚），其特征在于离子型溴化物小于10ppm，碱性溶液中颜色为60-100HU，HPLC纯度约99.9％，APHA为20％MeOH溶液 小于10.0HU，Fe小于1.0ppm，浊度为20％MeOH溶液小于5NTU，pH为10％浆液6.0-7.0，晶粒尺寸为250至280微米，休止角低于30°。 该产物通过双酚A与溴在过氧化氢存在下在“与水不混溶”的极性溶剂中反应生成，使反应后的反应产物老化，通过还原剂消除过量的溴，用组合物洗涤产物层 的阴离子表面活性剂，碱，还原剂和软化水，部分蒸馏含有产物的培养基的有机溶剂，过滤粗产物，用碱，还原剂和软化水煮沸粗产物，过滤TBBA， 用软化水洗涤产物并干燥，以高产率获得最终的高纯度TBBA。

    Holographic recording medium and method of recording a hologram
    17.
    发明授权
    Holographic recording medium and method of recording a hologram 失效
    全息记录介质和记录全息图的方法

    公开(公告)号：US08663873B2

    公开(公告)日：2014-03-04

    申请号：US13350149

    申请日：2012-01-13

    申请人： Andrew Arthur Paul Burns ,  Arunkumar Natarajan ,  Shantaram Narayan Naik ,  Eugene Boden ,  Kiran Arunkumar Puthamane ,  Vinodkumar Vasudevan ,  Sumeet Jain

    发明人： Andrew Arthur Paul Burns ,  Arunkumar Natarajan ,  Shantaram Narayan Naik ,  Eugene Boden ,  Kiran Arunkumar Puthamane ,  Vinodkumar Vasudevan ,  Sumeet Jain

    IPC分类号： G03H1/02

    CPC分类号： G11B7/24044 ,  G11B7/245

    摘要： Articles for recording a hologram are described. The articles include a holographic recording medium having a transparent polymeric binder and a photoreactive dye dispersed therein. The articles also include a first compound, dispersed in the holographic recording medium or disposed over a first surface of the holographic recording medium from which surface the hologram is viewed, that is transparent to light in the wavelength range to which the photoreactive dye is sensitive and which is capable of being converted to a converted compound that is opaque to light in the wavelength range to which the photoreactive dye is sensitive and transparent to light in a different wavelength range for viewing the hologram.

    摘要翻译： 描述用于记录全息图的物品。 这些物品包括具有分散在其中的透明聚合物粘合剂和光反应性染料的全息记录介质。 制品还包括分散在全息记录介质中或设置在全息记录介质的第一表面上的第一化合物，从全息图的表面观察全息图，其对于光敏染料敏感的波长范围内的光是透明的;以及 其能够转化为对光反应性染料敏感的波长范围内的光不透明的转化化合物，并且对于观察全息图的不同波长范围的光是透明的。