METHODS FOR BLOCKING UNDERGROUND FORMATIONS
    34.
    发明申请
    METHODS FOR BLOCKING UNDERGROUND FORMATIONS 审中-公开
    阻塞地下形态的方法

    公开(公告)号:US20110237468A1

    公开(公告)日:2011-09-29

    申请号:US12733370

    申请日:2009-11-07

    IPC分类号: C09K8/588

    摘要: A process is proposed for blocking underground formations in the extraction of fossil oil and/or gas, a first step involving introducing water-absorbing particles into liquid-bearing and porous rock formations, said particles being water-swellable, crosslinked and water-insoluble polymers, said particles in the water-bearing rock formation finally preventing liquid flow through the rock layers by water absorption. This process is characterized in that the absorbing particles comprise a superabsorbent polymer with anionic and/or cationic properties and a retarded swelling action. This process, which can also be carried out in saline formation waters, is notable in that the swelling of the superabsorbents used begins no earlier than after five minutes and in that the superabsorbents are obtainable by four proposed process variants and any combination thereof. This process, which does not need a carrier liquid, is notable for its simplicity and especially the controllable retardation of the swelling action under the specific conditions of underground rock formations.

    摘要翻译: 提出了一种在提取化石油和/或气体时阻挡地下地层的方法,第一步涉及将吸水颗粒引入含液和多孔岩层,所述颗粒是水溶胀性,交联和水不溶性聚合物 所述含水岩层中的颗粒最终通过吸水阻止液体流过岩层。 该方法的特征在于吸收颗粒包含具有阴离子和/或阳离子性质和延迟溶胀作用的超吸收性聚合物。 这个也可以在盐水形成水中进行的方法是显着的,因为使用的超吸收剂的溶胀不迟于五分钟之后开始,并且超吸收剂可通过四种所提出的方法变体及其任何组合获得。 这种不需要载体液体的方法是显而易见的,因为它的简单性,特别是在地下岩层的特定条件下可膨胀作用的可控延迟。

    Water-soluble copolymers of monoethylenically unsaturated polyalkylene oxide monomers and dipolar monomers containing at least one nitrogen atom
    37.
    发明授权
    Water-soluble copolymers of monoethylenically unsaturated polyalkylene oxide monomers and dipolar monomers containing at least one nitrogen atom 有权
    单烯属不饱和聚环氧烷单体和含有至少一个氮原子的偶极单体的水溶性共聚物

    公开(公告)号:US07790667B2

    公开(公告)日:2010-09-07

    申请号:US10579795

    申请日:2004-11-16

    IPC分类号: C11D3/37 C08F220/00

    摘要: Water-soluble copolymers which comprise, in copolymerized form, (a) 60 to 99% by weight of at least one monoethylenically unsaturated polyalkylene oxide monomer of the formula I H2C═CR1—X—YR2—OnR3  I  in which the variables have the following meanings: X is —CH2— or —C(O)—, if Y is —O—; is —C(O)—, if Y is —NH—; is —O— or —O—(CH2)4—, if Y is a chemical bond; Y is —O—, —NH— or a chemical bond; R1 is hydrogen or methyl; R2 is C2-C4-alkylene radicals, which may be identical or different and also linear or branched, but where at least 50% of the radicals R2 are ethylene; R3 is C1-C22-alkyl, phenyl, p-(C1-C12-alkyl)phenyl or hydrogen; n is an integer from 6 to 50, (b) 1 to 40% by weight of at least one nonquaternized dipolar monomer comprising at least one nitrogen atom, (c) 0 to 39% by weight of other nonionic monoethylenically unsaturated monomers and (d) 0 to 10% by weight of other anionic monoethylenically unsaturated monomers and have an average molecular weight Mw of from 2000 to 500 000 D, and the use of the copolymers as dispersants and sequestrants for pigmented materials, as additive for detergents, laundry pretreatment compositions, cleaners for hard surfaces, dentifrices and bodycare compositions, and as auxiliaries for textile processes, paper making and paper processing and deinking processes.

    摘要翻译: 以共聚形式包含(a)60-99重量%的至少一种式I的单烯键式不饱和聚环氧烷单体H 2 C = CR 1 -X-YR 2 -OnR 3 I的水溶性共聚物,其中变量具有以下 含义:X是-CH 2 - 或-C(O) - ,如果Y是-O-; 是-C(O) - ,如果Y是-NH-; 是-O-或-O-(CH 2)4 - ,如果Y是化学键; Y是-O - , - NH-或化学键; R1是氢或甲基; R 2是C 2 -C 4亚烷基,其可以相同或不同,并且也是直链或支链的,但是其中至少50%的基团R 2是亚乙基; R 3是C 1 -C 22 - 烷基,苯基,对(C 1 -C 12 - 烷基)苯基或氢; n为6〜50的整数,(b)1〜40重量%的至少一种含有至少一个氮原子的非季铵化偶极单体,(c)0〜39重量%的其他非离子单烯属不饱和单体和(d )0至10重量%的其它阴离子单烯属不饱和单体,并且其平均分子量Mw为2000至500000 D,并且使用共聚物作为着色材料的分散剂和螯合剂,作为洗涤剂的添加剂,洗衣预处理组合物 ,硬表面清洁剂,洁齿剂和身体护理组合物,以及纺织工艺,造纸和纸张处理和脱墨过程的辅助材料。

    COPOLYMERS AS SCALE INHIBITORS
    39.
    发明申请
    COPOLYMERS AS SCALE INHIBITORS 审中-公开
    共聚物作为规模抑制剂

    公开(公告)号:US20100152399A1

    公开(公告)日:2010-06-17

    申请号:US12298915

    申请日:2007-04-26

    IPC分类号: C08F226/00

    CPC分类号: C08F220/58 C08F220/06

    摘要: The present invention relates to copolymers which are obtainable from the free radical copolymerization of at least (a) a monoethylenically unsaturated carboxylic acid having 3 to 6 carbon atoms or the anhydride thereof with (b) a reaction mixture comprising a component of the general structural formula where R1, R2, R3, R4, independently of one another, are H or C1- to C4-alkyl, n and m, independently of one another, are an integer from 1 to 100 and R5 is H or methyl, a process for the preparation of the polymer according to the invention and the use thereof as a scale inhibitor.

    摘要翻译: 本发明涉及可从至少(a)具有3至6个碳原子的单烯属不饱和羧酸或其酸酐与(b)含有通式结构式的组分的反应混合物的自由基共聚获得的共聚物 其中R 1,R 2,R 3,R 4彼此独立地为H或C 1〜C 4 - 烷基,n和m彼此独立地为1〜100的整数,R 5为H或甲基, 根据本发明的聚合物的制备及其作为阻垢剂的用途。