Method of manufacturing a bonded particulate article by reacting a
hydrolyzed amylaceous product and a heterocyclic compound
    1.
    发明授权
    Method of manufacturing a bonded particulate article by reacting a hydrolyzed amylaceous product and a heterocyclic compound 失效
    通过使水解的淀粉产物和杂环化合物反应制造粘合的颗粒物品的方法

    公开(公告)号:US4814012A

    公开(公告)日:1989-03-21

    申请号:US129157

    申请日:1987-12-07

    摘要: Disclosed herein is a method of manufacturing a bonded particulate article by admixing particulate material with a binder system, the binder system being formed by admixing a polyol comprising a water soluble amylaceous hydrolyzate with a heterocyclic compound comprising the reaction product of glyoxal, urea, and formaldehyde, alone, or in further combination with ethylene glycol, with a solvent, and with an acid effective to control the rate of cross-linking between said polyol and said heterocyclic compound; forming the admixture in a shape and curing the shape to a bonded article.

    摘要翻译: 本文公开了一种通过将颗粒材料与粘合剂体系混合来制造粘合颗粒制品的方法,所述粘合剂体系通过将包含水溶性淀粉水解物的多元醇与包含乙二醛,脲和甲醛的反应产物的杂环化合物混合而形成 ,或与乙二醇与溶剂进一步组合,并与酸有效地控制所述多元醇和所述杂环化合物之间的交联速率; 形成外形并将形状固化成粘结制品。

    Method of manufacturing a bonded particulate article by reacting a
polyol and a meterocyclic compound
    3.
    发明授权
    Method of manufacturing a bonded particulate article by reacting a polyol and a meterocyclic compound 失效
    通过使多元醇与多元醇化合物反应制造粘合颗粒物的方法

    公开(公告)号:US4705570A

    公开(公告)日:1987-11-10

    申请号:US795067

    申请日:1985-11-05

    摘要: Disclosed herein is a method of manufacturing a bonded particulate article by admixing particulate material with a binder system, the binder system being formed by admixing a polyol selected from the group comprising a saccharide, a saccharide polymer, and a glyco protein with a heterocyclic compound of the formula ##STR1## wherein R.sup.1 and R.sup.2 are, independently, aryl of from 6 to 12 carbon atoms, alkyl of from 1 to 6 carbon atoms or substituted alkyl of from 1 to 6 carbon atoms wherein the substituting group is hydroxy, alkoxy of from 1 to 6 carbon atoms, hydroxyalkoxy of from 1 to 6 carbon atoms, cyano, carboxy, carbalkoxy of from 1 to 7 carbon atoms or carbamoyl, or when R.sup.1 is --C.sub.x H.sub.2x --, R.sup.2 is --C.sub.x H.sub.2x O--, x being from 1 to 7, X is oxygen, sulfur or imino and Z is a divalent bridging radical, with a solvent, and an acid effective to control the rate of crosslinking between said polyol and said heterocyclic compound; forming the admixture in a shape; and curing to form the bonded article.

    摘要翻译: 本文公开了一种通过将颗粒材料与粘合剂体系混合来制造粘合颗粒制品的方法,所述粘合剂体系通过将选自包含糖类,糖类聚合物和糖蛋白的组的多元醇与杂环化合物 其中R 1和R 2独立地为6至12个碳原子的芳基,1至6个碳原子的烷基或1至6个碳原子的取代的烷基,其中取代基为羟基, 1至6个碳原子,1至6个碳原子的羟基烷氧基,1至7个碳原子的氰基,羧基,烷氧基或氨基甲酰基,或当R1为-CxH2x-时,R2为-CxH2xO-,x为1至7 X为氧,硫或亚氨基,Z为二价桥联基,与溶剂和有效控制所述多元醇与所述杂环化合物之间交联速率的酸; 形成外加剂; 并固化形成粘结制品。

    Compositions containing aqueous viscosifying surfactants and methods for applying such compositions in subterranean formations

    公开(公告)号:US06637517B2

    公开(公告)日:2003-10-28

    申请号:US10051842

    申请日:2002-01-17

    IPC分类号: E21B4326

    摘要: The improved recovery of hydrocarbons from subterranean formations by hydraulically fracturing a subterranean formation is accomplished. Fracturing fluids using a viscosifying surfactant fluid containing viscosifying micelles, for example, wormlike micelles, are useful to improve recovery of hydrocarbons and limit the loss of fracturing fluid into the formation fracture face. The invention further relates to novel fracturing and acidizing methods useful for increasing hydrocarbon production, limiting water production, resisting fracturing fluid loss into the subterranean formation, and reducing the equipment requirements in mixing and pumping fracturing fluid. The action of viscosifying micelles of surfactant in aqueous zones of the subterranean formation diverts fracturing fluid or acid from the aqueous zones to the hydrocarbon-bearing zones and also facilitates the flowback of increased amounts of hydrocarbons once a fractured well is placed back on production. These methods selectively block the pore structure in a water-bearing zone and do not blocking the pore structure of a hydrocarbon zone at the formation face. The step for selectively blocking forms a plug of a viscous fluid containing viscosifying micelles in the pore structure of the water-bearing zone at the formation face.

    Methods of fracturing subterranean formations
    5.
    发明授权
    Methods of fracturing subterranean formations 有权
    压裂地下地层的方法

    公开(公告)号:US06412561B1

    公开(公告)日:2002-07-02

    申请号:US09219948

    申请日:1998-12-23

    IPC分类号: E21B4317

    摘要: The improved recovery of hydrocarbons from subterranean formations by hydraulically fracturing a subterranean formation is accomplished. Fracturing fluids using a viscoelastic surfactant fluid containing wormlike micelles are useful to improve recovery of hydrocarbons and limit the loss of fracturing fluid into the formation fracture face. The invention further relates to novel fracturing methods useful for increasing hydrocarbon production, limiting connate water production, resisting fracturing fluid loss into the subterranean formation, and reducing the equipment requirements in mixing and pumping fracturing fluid. The action of micelles of surfactant in aqueous zones of the subterranean formation facilitates the flowback of increased amounts of hydrocarbons once a fractured well is placed back on production.

    摘要翻译: 通过水力压裂地下地层来改善地下地层烃类的回收。 使用含有蠕虫状胶束的粘弹性表面活性剂流体的压裂液可用于改善烃的回收并限制压裂流体进入地层断裂面的损失。 本发明还涉及用于增加碳氢化合物生产,限制合生水产生,抵抗压裂流体损失到地层中的新型压裂方法,以及降低混合和泵送压裂液体的设备要求。 表面活性剂在地下水层的表面活性剂的作用有助于一旦断裂的井放回生产中,增加量的烃的回流。

    Vapor phase oxidation process for making glyoxal
    7.
    发明授权
    Vapor phase oxidation process for making glyoxal 失效
    制备乙二醛的气相氧化工艺

    公开(公告)号:US4978803A

    公开(公告)日:1990-12-18

    申请号:US373843

    申请日:1989-06-26

    申请人: Roger J. Card

    发明人: Roger J. Card

    CPC分类号: C07C45/38

    摘要: In the process for making glyoxal by catalytic oxidation of ethylene glycol in contact with catalyst comprising copper, glyoxal yield is improved and catalyst life is improved by the presence of a small amount of iodine or organic iodide in the reactant feed mixture.

    摘要翻译: 在通过与包含铜的催化剂接触的乙二醇的催化氧化制备乙二醛的方法中,通过在反应物进料混合物中存在少量的碘或有机碘化物,提高了乙二醛产率并提高了催化剂寿命。

    Rubber compositions with a high elastic modulus
    10.
    发明授权
    Rubber compositions with a high elastic modulus 失效
    具有高弹性模量的橡胶组合物

    公开(公告)号:US5196483A

    公开(公告)日:1993-03-23

    申请号:US549322

    申请日:1990-07-06

    IPC分类号: C08F255/06 C08F291/02

    CPC分类号: C08F291/02 C08F255/06

    摘要: Modified rubber compositions comprise by weight about 15-60% of a highly saturated aliphatic rubber such as ethylene-propylene-diene rubber, about 25-80% of acrylate monomer units; and less than about 5% multi-functional monomer units. The compositions exist as amorphous heterogeneously dispersed phases. The first phase comprises the copolymer rubber to which polymers of at least 10% of the other monomer units are grafted. The second phase comprises the other monomers polymerized as homo and copolymers, not grafted to the rubber. Optionally, up to 20% of the composition comprises high index monomer units. The high index monomer units may be copolymerized with the acrylate and grafted to the rubber. Greater than 10% of the monomer units other than rubber are grafted to the rubber. The number average molecular weight of the grafts is between 10,000 and 80,000 daltons. About 2-20% by weight of one or more polymers may be provided to adjust the refractive indices of the rubber or the polyacrylate phase in the final product such that when the composition is present at the 10% rubber level, the haze can be reduced to less than 20%.

    摘要翻译: 改性橡胶组合物包含约15-60%的高饱和脂肪族橡胶如乙烯 - 丙烯 - 二烯橡胶,约25-80%的丙烯酸酯单体单元; 和小于约5%的多官能单体单元。 组合物以无定形非均相分散相存在。 第一相包含其中至少10%的其它单体单元的聚合物被接枝的共聚物橡胶。 第二相包含其它单体作为均聚物和共聚物聚合而未接枝到橡胶上。 任选地,高达20%的组合物包含高折射率单体单元。 高指数单体单元可以与丙烯酸酯共聚并接枝到橡胶上。 大于10%的橡胶以外的单体单元被接枝到橡胶上。 移植物的数均分子量为10,000至80,000道尔顿。 可以提供约2-20重量%的一种或多种聚合物以调节最终产品中橡胶或聚丙烯酸酯相的折射率,使得当组合物以10%橡胶水平存在时,雾度可以降低 至少于20%。