METHOD FOR PRODUCING 1,4-BIS (DICHLOROMETHYL) TETRAFLUOROBENZENE
    2.
    发明申请
    METHOD FOR PRODUCING 1,4-BIS (DICHLOROMETHYL) TETRAFLUOROBENZENE 有权
    生产1,4-二(二氯甲基)四氢呋喃并苯的方法

    公开(公告)号:US20090171131A1

    公开(公告)日:2009-07-02

    申请号:US12285645

    申请日:2008-10-10

    CPC classification number: C07C17/38 C07C17/18 C07C17/392 C07C25/13

    Abstract: A method for producing 1,4-bis(dichloromethyl)tetrafluorobenzene is disclosed, which is achieved by reacting tetrafluoroterephthaldehyde, SOCl2 and organic solvents. In the synthesis of 1,4-bis(dichloromethyl)tetrafluorobenzene by adding formamides as catalyst, there are remarkable advantages which include shortening the reaction time; simplifying the synthesizing steps and raising the yield of the product.

    Abstract translation: 公开了生产1,4-双(二氯甲基)四氟苯的方法,其通过使四氟对苯二甲醛,SOCl 2和有机溶剂反应来实现。 通过加入甲酰胺作为催化剂合成1,4-双(二氯甲基)四氟苯,具有明显的优点,包括缩短反应时间; 简化合成步骤并提高产品的产率。

    Method for synthesizing TFPX
    3.
    发明授权
    Method for synthesizing TFPX 有权
    合成TFPX的方法

    公开(公告)号:US07173159B2

    公开(公告)日:2007-02-06

    申请号:US11189710

    申请日:2005-07-27

    CPC classification number: C07C17/208 C07C22/08

    Abstract: A method for the synthesis of TFPX (α, α, α′, α′-tetrafluoro-p-xylene) is disclosed, which comprises the following steps: (a) providing a sulpholane solution comprising TCPX (α, α, α′, α′-tetrachloro-p-xylene); (b) mixing the sulpholane solution with alkali metal fluoride, and phase transfer catalyst to form a mixture, wherein the phase transfer catalyst is quaternary phosphonium salt; and (c) heating the mixture.

    Abstract translation: 公开了一种合成TFPX(α,α,α',α'-四氟对二甲苯)的方法,其包括以下步骤:(a)提供包含TCPX(α,α,α' α'-四氯对二甲苯); (b)将环丁砜溶液与碱金属氟化物和相转移催化剂混合以形成混合物,其中相转移催化剂是季鏻盐; 和(c)加热混合物。

    Front panel structure of plasma display panel
    4.
    发明申请
    Front panel structure of plasma display panel 有权
    等离子显示面板前面板结构

    公开(公告)号:US20050017636A1

    公开(公告)日:2005-01-27

    申请号:US10866083

    申请日:2004-06-14

    Abstract: A front panel structure of Plasma Display Panel (PDP) is disclosed sequentially comprising a first electrode, a second electrode and a third electrode, wherein the second electrode has transparent electrodes located on both top and bottom sides of a bus electrode. A first discharge center is formed between a transparent electrode of the first electrode and one transparent electrode of the second electrode. A second discharge center is formed between the other transparent electrode of the second electrode and a transparent electrode of the third electrode. Therefore, an emitting cell of PDP has two discharge centers. To make the discharge more stable, we choose the first electrode and the third electrode to become the scan electrodes, or to form a thicker dielectric layer or discharge deactivation film below the second bus electrode as a scan electrode.

    Abstract translation: 公开了等离子体显示面板(PDP)的前面板结构,其包括第一电极,第二电极和第三电极,其中第二电极具有位于总线电极的顶部和底部两侧的透明电极。 在第一电极的透明电极和第二电极的一个透明电极之间形成第一放电中心。 在第二电极的另一透明电极和第三电极的透明电极之间形成第二放电中心。 因此,PDP的发光单元具有两个放电中心。 为了使放电更稳定,我们选择第一电极和第三电极成为扫描电极,或者在作为扫描电极的第二总线电极之下形成较厚的介电层或放电去活化膜。

    Method and apparatus for reducing dynamic false contour in plasma display panel by decreasing visual concentration difference
    5.
    发明授权
    Method and apparatus for reducing dynamic false contour in plasma display panel by decreasing visual concentration difference 有权
    通过降低视觉浓度差来减少等离子体显示面板中动态假轮廓的方法和装置

    公开(公告)号:US06697085B2

    公开(公告)日:2004-02-24

    申请号:US09983454

    申请日:2001-10-24

    CPC classification number: G09G3/2029 G09G3/2803 G09G2320/0266 G09G2320/0271

    Abstract: A method for reducing dynamic false contour in a plasma display panel (PDP) comprising the steps of selecting gray scales of different visual concentration series from all of gray scales available to be shown on said PDP to form a visual concentration conversion table, selecting at least one of said visual concentration series as a virtual visual concentration series, and converting original input value of gray scale of each discharge unit into corresponding gray scales of different visual concentration series and virtual visual concentration series, while showing each field of a dynamic image on said PDP, in order to average visual concentration difference between gray scales of two adjacent discharge units on the dynamic field into a smaller one.

    Abstract translation: 一种用于减少等离子体显示面板(PDP)中的动态假轮廓的方法,包括以下步骤:从可用于所述PDP上显示的所有灰度级选择不同视觉浓度序列的灰度级,以形成视觉浓度转换表,至少选择 将所述视觉浓度序列中的一个作为虚拟视觉浓度序列,并将每个放电单元的灰度的原始输入值转换成不同视觉浓度序列和虚拟视觉浓度序列的相应灰度级,同时显示所述视觉浓度序列上的动态图像的每个场 PDP,以便将动态场上的两个相邻放电单元的灰度级之间的视觉浓度差平均化为较小的。

    Client and host validation based on hash of key and validation of encrypted data
    6.
    发明授权
    Client and host validation based on hash of key and validation of encrypted data 有权
    基于密钥散列和加密数据验证的客户端和主机验证

    公开(公告)号:US08504826B2

    公开(公告)日:2013-08-06

    申请号:US13187528

    申请日:2011-07-21

    CPC classification number: H04L9/0844 H04L9/3271

    Abstract: A data security protection method generates dynamic encryption keys and dynamic decryption keys for a host and a client during data transmission between the host and the client. The host stores a host initial key K0, and determines a host key Kn using a one-way hash function based on the host initial key K0. The client stores a client initial key K′0, and determines a client key K′n using the one-way hash function based on the client initial key K′0. Original data Rn is encrypted as encrypted data Xn using the host key Kn before being sent to the client. The client decrypts the encrypted data Xn using the client key K′n, to obtain the original data Rn.

    Abstract translation: 数据安全保护方法在主机和客户端之间的数据传输期间,为主机和客户机生成动态加密密钥和动态解密密钥。 主机存储主机初始密钥K0,并且使用基于主机初始密钥K0的单向散列函数来确定主机密钥Kn。 客户端存储客户端初始密钥K'0,并且使用基于客户端初始密钥K'0的单向哈希函数来确定客户密钥K'n。 原始数据Rn在发送给客户端之前使用主机密钥Kn作为加密数据Xn加密。 客户机使用客户端密钥K'n解密加密数据Xn,以获得原始数据Rn。

    METHOD AND DEVICE FOR PURIFYING 1,4-BIS (BROMODIFLUOROMETHYL) BENZENE
    10.
    发明申请
    METHOD AND DEVICE FOR PURIFYING 1,4-BIS (BROMODIFLUOROMETHYL) BENZENE 审中-公开
    用于纯化1,4-BIS(溴代三氟甲磺酸)苯的方法和装置

    公开(公告)号:US20090065345A1

    公开(公告)日:2009-03-12

    申请号:US12270919

    申请日:2008-11-14

    Abstract: A method and a device for purifying 1,4-bis (bromodifluoromethyl) benzene are disclosed. In order to solve the problem of hard to purify and separate 1,4-bis (bromodifluoromethyl) benzene crude products, diphenylmethane that has a higher boiling point and does not interact with 1,4-bis (bromodifluoromethyl) benzene is mixed with the 1,4-bis (bromodifluoromethyl) benzene crude products for evaporation. Afterwards, the purity of the vaporized product is detected and only that reaching an expected purity is collected to obtain high-purity 1,4-bis (bromodifluoromethyl) benzene.

    Abstract translation: 公开了用于纯化1,4-双(溴二氟甲基)苯的方法和装置。 为了解决难以纯化和分离1,4-双(溴二氟甲基)苯粗产物的问题,具有较高沸点并且不与1,4-双(溴二氟甲基)苯相互作用的二苯基甲烷与1 ,4-双(溴二氟甲基)苯粗产物蒸发。 之后,检测蒸发产物的纯度,仅收集达到预期纯度的纯度,得到高纯度的1,4-双(溴二氟甲基)苯。

Patent Agency Ranking