Encapsulated compositions
    6.
    发明授权
    Encapsulated compositions 有权
    封装组合物

    公开(公告)号:US08273426B1

    公开(公告)日:2012-09-25

    申请号:US11651895

    申请日:2007-01-10

    IPC分类号: B29D22/00 B32B5/16

    摘要: A capsule having a reactive chemical enclosed in the hollow interior thereof, and at least one coating in direct contact with and surrounding the reactive chemical, wherein the coating is a heat-cured thermosetting synthetic resin. The capsule can also include a second coating which is in direct contact with and surrounds the heat-cured thermosetting synthetic resin. The reactive chemical is not reactive with, soluble in or a solvent for the coating, or coatings, which surround the reactive chemical in the hollow interior of the capsule. The coating material is not soluble in water, but is permeable to water.

    摘要翻译: 一种具有封闭在其中空内部的反应性化学品的胶囊,以及与反应性化学品直接接触并包围反应性化学品的至少一种涂层,其中所述涂层是热固化的热固性合成树脂。 胶囊还可以包括与热固化的热固性合成树脂直接接触并包围的第二涂层。 反应性化学品与胶囊的中空内部中的活性化学物质不相溶,可溶于涂层或涂层溶剂或涂层。 涂料不溶于水,但可渗透水分。

    Hollow capsule having a wall permeable to water or an aqueous solution
    7.
    发明授权
    Hollow capsule having a wall permeable to water or an aqueous solution 有权
    空心胶囊具有可渗透水或水溶液的壁

    公开(公告)号:US07179485B1

    公开(公告)日:2007-02-20

    申请号:US09770931

    申请日:2001-01-26

    IPC分类号: A61K9/48 C08F287/00 C11D17/00

    CPC分类号: C11D17/0039

    摘要: This invention discloses, as an article of manufacture, a capsule having a hollow interior and an enclosing wall, referred to as a membrane. The membrane is not soluble in water, but is permeable to water or an aqueous solution. The membrane is comprised of a first material and can also include a second material. When the membrane is comprised of the first material and the second material, then it is referred to as a composite material wherein the first material forms sporting matrix having the second material fixed in the matrix. The first material is a urethane/vinyl hybrid polymer and is not soluble in, reactive with or a solvent for the second material. The second material is a particulate solid, different from the first material, and is not soluble in, reactive with or a solvent for the first material. The capsule of this invention is useful to maintain in the hollow interior thereof a solid, water-soluble first chemical composition which is not soluble in, reactive with or a solvent for the enclosing wall of the capsule. In operation, the exterior of the capsule, having the first composition maintained in the interior thereof, is placed in contact with a water-soluble second chemical composition which is not soluble in, reactive with or a solvent for the enclosing wall of the capsule, but which is reactive with the first chemical composition.

    摘要翻译: 本发明公开了一种具有中空内部和封闭壁(被称为膜)的胶囊作为制品。 膜不溶于水,但是对水或水溶液是可渗透的。 膜由第一材料组成并且还可以包括第二材料。 当膜由第一材料和第二材料组成时,则其被称为复合材料,其中第一材料形成具有固定在基质中的第二材料的运动基质。 第一种材料是聚氨酯/乙烯基杂化聚合物,并且不溶于第二种材料的反应性或溶剂。 第二种材料是与第一种材料不同的颗粒状固体,不溶于第一种材料的反应性或溶剂。 本发明的胶囊可用于在其中空的内部保持不溶于胶囊的封闭壁的反应性或溶剂的固体的水溶性第一化学组合物。 在操作中,具有保持在其内部的第一组合物的胶囊的外部与水溶性第二化学组合物接触,所述水溶性第二化学组合物不溶于胶囊的封闭壁的反应性或溶剂, 但与第一化学成分反应。

    Perphosphate viscosity breakers in well fracture fluids
    9.
    发明授权
    Perphosphate viscosity breakers in well fracture fluids 失效
    井压裂液中的过磷酸盐粘度破碎剂

    公开(公告)号:US5386874A

    公开(公告)日:1995-02-07

    申请号:US148486

    申请日:1993-11-08

    IPC分类号: C09K8/68 E21B43/267

    CPC分类号: C09K8/685

    摘要: The present invention relates to: i) fracture fluid compositions for fracturing subterranean formations to enhance production of fluids from wells in which the viscosity breaker is one or more esters or amides of the perphosphate ion, and to: ii) fracturing processes using fracture fluids comprising esters or amides of the perphosphate ion.

    摘要翻译: 本发明涉及:i)用于压裂地下地层的裂缝流体组合物,以增强来自其中粘度破坏剂是过磷酸根离子的一种或多种酯或酰胺的井的流体的生产,以及:ii)使用断裂流体的压裂方​​法,包括 过磷酸根离子的酯或酰胺。