Surface chemistry modified latex and redispersible powders, production and use thereof
    14.
    发明授权
    Surface chemistry modified latex and redispersible powders, production and use thereof 有权
    表面化学改性胶乳和可再分散的粉末,其生产和使用

    公开(公告)号:US07012114B2

    公开(公告)日:2006-03-14

    申请号:US10149018

    申请日:2000-12-08

    IPC分类号: C08J3/03 C08F2/10

    摘要: The present invention relates to a latex with modified surface chemistry, which may be obtained by carrying out a free-radical emulsion polymerization in the presence of at least one ethylenically unsaturated monomer or at least one polymer containing residual ethylenically unsaturated bonds, of at least one free-radical polymerization initiator, of at least one water-soluble and/or water-dispersible monoblock, diblock or triblock polymer comprising at its end an active group capable of forming a radical, chosen from dithioesters, xanthates, thioether-thiones and diothiocarbamates. The invention similarly relates to redispersible powders that may be obtained by drying the said latices.

    摘要翻译: 本发明涉及具有改性表面化学的胶乳,其可以通过在至少一种烯属不饱和单体或至少一种含有残余烯属不饱和键的聚合物的存在下进行自由基乳液聚合而得到,所述烯属不饱和单体至少包含一个 至少一种水溶性和/或水分散性单嵌段,二嵌段或三嵌段聚合物,其末端包含能够形成基团的活性基团,选自二硫代酯,黄原酸酯,硫醚 - 硫杂和二硫代氨基甲酸酯。 本发明类似地涉及通过干燥所述胶乳获得的可再分散粉末。

    Selective nanoparticle assembly systems and methods
    15.
    发明授权
    Selective nanoparticle assembly systems and methods 有权
    选择性纳米颗粒组装系统和方法

    公开(公告)号:US08475869B2

    公开(公告)日:2013-07-02

    申请号:US13078583

    申请日:2011-04-01

    IPC分类号: B05D1/12 B05D1/28 B05C1/08

    CPC分类号: B82Y30/00 G03F7/0002

    摘要: Disclosed are methods and systems for transferring dry or semi-dry nanoparticles onto a substrate. In one embodiment, this includes the steps of providing a roller comprising an elastomeric stamp; transferring nanoparticles in a dry or semi-dry state, and which contact the surface of a donor substrate, from the donor substrate onto the elastomeric stamp; and depositing the dry or semi-dry nanoparticles from the elastomeric stamp onto a receiver substrate by rolling the elastomeric stamp onto the receiver substrate. The substrate, in other embodiments, can have a relief structure.

    摘要翻译: 公开了将干燥或半干燥的纳米颗粒转移到基底上的方法和系统。 在一个实施例中,这包括提供包括弹性体印模的辊的步骤; 将干燥或半干燥状态的纳米颗粒从施主衬底转移到弹性体印模上,并将其与供体衬底的表面接触; 以及通过将弹性体印模滚动到接收器基底上,将来自弹性体印模的干燥或半干燥纳米颗粒沉积到接收器基底上。 在其他实施例中,基板可以具有浮雕结构。

    Hybrid nanoscale particles
    16.
    发明授权
    Hybrid nanoscale particles 有权
    混合纳米级颗粒

    公开(公告)号:US08048525B2

    公开(公告)日:2011-11-01

    申请号:US12387829

    申请日:2009-05-08

    IPC分类号: B32B5/16

    摘要: An adsorption method includes the step of adsorbing hybrid particles from a colloidal dispersion of such particles at an interface between the dispersion and a second phase, said hybrid particles comprising: (a) a nanoscale inorganic core having an outer surface, and (b) an organic layer disposed on at least a portion of the surface of the inorganic core and comprising one or more phosphonates according to structure (I): wherein: R1 and R2 are each independently H, or a (C1-C20)hydrocarbon group, R3 is a divalent (C1-C20)hydrocarbon group, R4 and R5 are each independently H or (C1-C2)alkyl, provided that R4 differs from R5, R6 is H or a (C1-C30)hydrocarbon group, m and n are each independently integers of from 0 to about 200, provided that the sum of m+n is at least 1.

    摘要翻译: 吸附方法包括在分散体和第二相之间的界面处从这种颗粒的胶态分散体吸附杂化颗粒的步骤,所述混合颗粒包含:(a)具有外表面的纳米级无机芯,和(b) 有机层设置在所述无机芯的表面的至少一部分上并且包含一种或多种根据结构(I)的膦酸盐:其中:R 1和R 2各自独立地为H或(C 1 -C 20)烃基,R 3为 如果R4不同于R5,R6是H或(C1-C30)烃基,则m和n分别为二价(C1-C20)烃基,R4和R5各自为H或(C1-C2) 独立地为0至约200的整数,条件是m + n的和至少为1。

    Systems and methods for evaluating asphaltene deposition inhibitors
    17.
    发明申请
    Systems and methods for evaluating asphaltene deposition inhibitors 失效
    评估沥青质沉积抑制剂的系统和方法

    公开(公告)号:US20110203353A1

    公开(公告)日:2011-08-25

    申请号:US12932386

    申请日:2011-02-24

    IPC分类号: G01N33/26

    摘要: Disclosed are methods of determining the effectiveness of an asphaltene deposition inhibitor in oilfield applications. Such methods typically comprising the steps of introducing an oil well fluid into a microfluidic/millifluidic system; introducing a mixture of an asphaltene deposition inhibitor and carrier into the microfluidic/millifluidic system; introducing a precipitating agent, typically comprising heptane, into the microfluidic/millifluidic system; and optionally introducing toluene into the microfluidic/millifluidic system; then observing the presence or absence of asphaltene aggregation within the microfluidic/millifluidic system.

    摘要翻译: 公开了确定沥青质沉积抑制剂在油田应用中的有效性的方法。 这些方法通常包括将油井流体引入微流体/微流体系统的步骤; 将沥青质沉积抑制剂和载体的混合物引入到微流体/微流体系统中; 将典型地包含庚烷的沉淀剂引入到微流体/微流体系统中; 并任选地将甲苯引入微流体/微流体系统中; 然后观察微流体/微流体系统内沥青质聚集的存在或不存在。

    Co-assembly method and co-assembled structures made thereby
    18.
    发明申请
    Co-assembly method and co-assembled structures made thereby 有权
    由此组装方法和共组装结构

    公开(公告)号:US20100264375A1

    公开(公告)日:2010-10-21

    申请号:US12386281

    申请日:2009-04-16

    IPC分类号: H01B1/12 C08J5/20

    CPC分类号: C08J5/20

    摘要: A co-assembly method includes, in an aqueous polyelectrolyte composition comprising: (a) a first polyelectrolyte dispersed in the composition and having a net electric charge of a first polarity, (b)a second polyelectrolyte dispersed in the composition and having a net electric charge of a second polarity, wherein the second polarity is opposite the first polarity, and (c)an electrolyte dissolved in the composition in a concentration effective to prevent co-assembly of the polyelectrolytes, the step of allowing co-assembly of the polyelectrolytes by: (1) decreasing the concentration of the electrolyte, or (2) forming an interface between the aqueous polyelectrolyte composition and a surface of a solid substrate or of a second liquid phase, wherein the surface has an affinity for at least one of the polyelectrolytes, or (3) decreasing the concentration of the electrolyte and forming such an interface.

    摘要翻译: 共组合方法包括在聚电解质水溶液组合物中,其包含:(a)分散在组合物中并具有第一极性的净电荷的第一聚电解质,(b)分散在组合物中的第二聚电解质,并具有净电 第二极性的电荷,其中第二极性与第一极性相反,和(c)以有效防止聚电解质的共组装的浓度溶解在组合物中的电解质,允许聚电解质共同组装的步骤 :(1)降低电解质的浓度,或(2)在聚电解质水溶液组合物与固体基质或第二液相的表面之间形成界面,其中表面对至少一种聚电解质具有亲和力 ,或(3)降低电解质的浓度并形成这样的界面。