知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

178 条记录 (耗时 0.028 秒)

    Resins comprised of alkyl phenols and of glyoxylic acid derivatives, and their use as demulsifiers
    6.
    发明申请
    Resins comprised of alkyl phenols and of glyoxylic acid derivatives, and their use as demulsifiers 审中-公开
    由烷基酚和乙醛酸衍生物组成的树脂及其作为破乳剂的用途

    公开(公告)号：US20040102586A1

    公开(公告)日：2004-05-27

    申请号：US10432147

    申请日：2003-05-16

    发明人： Dirk Leinweber ,  Elisabeth Wasmund

    IPC分类号： C08F283/00

    CPC分类号： C10G33/04 ,  C08G8/36 ,  C08L61/14

    摘要： The invention relates to the use of resins that can be obtained from compounds of formula (1), in which substituents R1 and OH can, with regard to one another, be located in ortho position, meta position or para position, and R1 represents C1-C30 alkyl, C2-C30 alkenyl, C6-C18 aryl or C7-C30 alkyl aryl. The inventive resins are produced using the following steps, which can be carried out in any order: A) reacting with a compound of formula (2): OHCnullCOOR2, wherein R2 represents H, C1-C30 alkyl, C2-C30 aryl or C7-C30 alkyl aryl, and; B) alkoxylating with a C2-C4 alkylene oxide in molar excess so that the resulting alkoxylate has a degree of alkoxylation of 0 to 100 alkylene oxide units per OH group. In addition, the inventive resins have a molecular weight ranging from 250 to 100,000 units in quantities of 0.0001 to 5 wt. % with regard to the emulsion. The inventive resins are used a demulsiflers for oil-in-water emulsions, in particular, in the domain of petroleum extraction. 1

    摘要翻译： 本发明涉及可以由式（1）化合物获得的树脂，其中取代基R 1和OH可相对于彼此位于邻位，间位或对位，以及 R 1表示C 1 -C 30烷基，C 2 -C 30烯基，C 6 -C 18芳基或C 7 -C 30烷基芳基。 本发明的树脂使用以下步骤制备，其可按任何顺序进行：A）与式（2）化合物反应：OHC-COOR 2，其中R 2表示H，C 1 -C 30烷基 ，C 2 -C 30芳基或C 7 -C 30烷基芳基，和 B）用摩尔过量的C 2 -C 4烯化氧进行烷氧基化，使得得到的烷氧基化物具有每OH基团0至100个环氧烷单元的烷氧基化程度。 此外，本发明树脂的分子量为0.0001-5重量％的250-100,000个单位。 ％。 本发明的树脂用于水包油乳化剂的破乳剂，特别是在石油提取领域。

    Composition and device for urinary protein assay and method of using the same
    9.
    发明授权
    Composition and device for urinary protein assay and method of using the same 失效
    尿蛋白测定的组成和装置及其使用方法

    公开(公告)号：US5326707A

    公开(公告)日：1994-07-05

    申请号：US800272

    申请日：1991-11-29

    申请人： Gunter Franke ,  Michael Salvati ,  Ronald G. Sommer

    发明人： Gunter Franke ,  Michael Salvati ,  Ronald G. Sommer

    IPC分类号： G01N21/78 ,  C08G8/36 ,  G01N31/00 ,  G01N31/22 ,  G01N33/52 ,  G01N33/68 ,  G01N33/00

    CPC分类号： C08G8/36 ,  G01N33/523 ,  G01N33/6839

    摘要： A composition, test device and method of determining the presence or concentration of proteins, such as albumin, in a liquid test sample, such as urine. The test device includes a test pad with a carrier matrix incorporating a indicator reagent composition capable of interacting with proteins to produce a detectable response. The indicator reagent composition includes an indicator dye that is capable of interacting with albumin and undergoing a detectable color transition; a buffer; a hydrophobic polymeric compound having the general structural formula: ##STR1## wherein A is ##STR2## and PO is an oxypropylene unit, EO is an oxyethylene unit, y is a number in the range of 0 to about 20, z is a number in the range of 0 to about 20, the sum y+z is a number in the range of about 2 to about 20, and R.sub.2 and R.sub.3 are selected, independently, from the group consisting of hydrogen, an alkyl group, an aralkyl group, and an aryl group;R.sub.1 is either methylene or oxygen;n is a number in the range of one to about 8; andE is hydrogen or methylol when R.sub.1 is methylene, or E is hydroxy when R.sub.1 is oxygen; and a suitable carrier which is water. The indicator reagent composition provides an improved color resolution in the test samples raving negative protein and trace amount of protein.

    摘要翻译： 在液体测试样品如尿液中测定蛋白质如白蛋白的存在或浓度的组合物，测试装置和方法。 测试装置包括具有载体矩阵的测试垫，其包含能够与蛋白质相互作用以产生可检测反应的指示剂组合物。 指示剂组合物包括能够与白蛋白相互作用并经历可检测的颜色转变的指示剂染料; 一个缓冲区 具有以下通式结构式的疏水性聚合物：其中A为氧化丙烯单元，PO为氧化乙烯单元，y为0至约20范围内的数，z为 0至约20范围内的数，y + z之和为约2至约20范围内的数，R2和R3独立地选自氢，烷基， 芳烷基和芳基; R1是亚甲基或氧; n是1至8的范围内的数字; 当R 1为亚甲基时，E为氢或羟甲基，或当R 1为氧时，E为羟基; 和合适的载体，它是水。 指示剂组合物在测试样品中提供改善的颜色分辨率，其具有负蛋白质和痕量的蛋白质。