中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

10 records (took 0.042 seconds)

    CLEAVABLE ADDITIVES FOR USE IN A METHOD OF MAKING A SEMICONDUCTOR SUBSTRATE
    2.
    发明申请
    CLEAVABLE ADDITIVES FOR USE IN A METHOD OF MAKING A SEMICONDUCTOR SUBSTRATE 有权

    公开(公告)号：US20210166934A1

    公开(公告)日：2021-06-03

    申请号：US17044928

    申请日：2019-04-02

    Applicant: BASF SE

    Inventor： Andreas KLIPP ,  Christian BITTNER ,  Simon BRAUN ,  Guenter OETTER ,  Yeni BURK

    IPC: H01L21/02 ,  C07C271/12

    Abstract: The use of an organic compound as cleavable additive, preferably as cleavable surfactant, in the modification and/or treatment of at least one surface of a semiconductor substrate is described. Moreover, it is described a method of making a semiconductor substrate, comprising contacting at least one surface thereof with an organic compound, or with a composition comprising it, to treat or modify said surface, cleaving said organic compound into a set of fragments and removing said set of fragments from the contacted surface. More in particular, a method of cleaning or rinsing a semiconductor substrate or an intermediate semiconductor substrate is described. In addition, a compound is described which is suitable for the uses and methods pointed out above and which preferably is a cleavable surfactant.

    SOLUBILITY ENHANCERS ON BASIS OF ALLYL ALCOHOL FOR AQUEOUS SURFACTANT FORMULATIONS FOR ENHANCED OIL RECOVERY
    5.
    发明申请
    SOLUBILITY ENHANCERS ON BASIS OF ALLYL ALCOHOL FOR AQUEOUS SURFACTANT FORMULATIONS FOR ENHANCED OIL RECOVERY 有权

    公开(公告)号：US20210148203A1

    公开(公告)日：2021-05-20

    申请号：US16627473

    申请日：2018-07-11

    Applicant: BASF SE

    Inventor： Christian BITTNER ,  Guenter OETTER ,  Jack F. TINSLEY ,  Hans-Christian RATHS ,  Marcel Patrik KIENLE ,  Sebastian Alexander WEISSE

    IPC: E21B43/16 ,  C09K8/584

    Abstract: The present invention relates to a method for the production of crude oil from subterranean, oil-bearing formations comprising at least the following steps of providing an aqueous surfactant composition comprising water and a surfactant mixture, injecting said surfactant composition into the subterranean, oil-bearing formation through at least one injection well, thereby reducing the crude oil-water interfacial tension to less than 0.1 mN/m, and withdrawing crude oil from the formation through at least one production well, wherein the surfactant mixture comprises at least a surfactant (A) having the general formula R1—O—(CH2CH(R2)O)a—(CH2CH(CH3)O)b—(CH2CH2O)c—R3—Y−M+ (I) and a solubility enhancer (B) having the general formula R4—O—(CH2CH(CH3)O)x—(CH2CH2O)y—R3—Y−M+ (II), wherein R1 to R4, a, b, c, x, y, Y and M have the meaning as defined the the description and claims. The invention further relates to said aqueous surfactant composition and methods for preparing the same as well as the use of solubility enhancer (B) for enhancing the solubility of anionic surfactant (A).

    SOLUBILITY ENHANCERS ON BASIS OF ALLYL ALCOHOL FOR AQUEOUS SURFACTANT FORMULATIONS FOR ENHANCED OIL RECOVERY
    6.
    发明申请
    SOLUBILITY ENHANCERS ON BASIS OF ALLYL ALCOHOL FOR AQUEOUS SURFACTANT FORMULATIONS FOR ENHANCED OIL RECOVERY 审中-公开

    公开(公告)号：US20200157409A1

    公开(公告)日：2020-05-21

    申请号：US16627489

    申请日：2018-07-11

    Applicant: BASF SE

    Inventor： Christian BITTNER ,  Guenter OETTER ,  Jack F. TINSLEY ,  Hans-Christian RATHS ,  Marcel Patrik KIENLE ,  Sebastian Alexander WEISSE

    IPC: C09K8/584 ,  E21B43/20 ,  C07C59/60

    Abstract: The present invention relates to a method for the production of crude oil from subterranean, oil-bearing formations comprising at least the following steps of providing an aqueous surfactant composition comprising water and a surfactant mixture, injecting said surfactant composition into the subterranean, oil-bearing formation through at least one injection well, thereby reducing the crude oil-water interfacial tension to less than 0.1 mN/m, and withdrawing crude oil from the formation through at least one production well, wherein the surfactant mixture comprises at least a surfactant (A) having the general formula R1—O—(CH2CH(R2)O)a-(CH2CH(CH3)O)b— (CH2CH2O)c—R3—Y− M+ (I) and a solubility enhancer (B) having the general formula R4—O—(CH2CH(CH3)O)x—(CH2CH2O)y—R3—Y− M+ (II), wherein R1 to R4, a, b, c, x, y, Y and M have the meaning as defined the the description and claims. The invention further relates to said aqueous surfactant composition and methods for preparing the same as well as the use of solubility enhancer (B) for enhancing the solubility of anionic surfactant (A).

    METHOD FOR CO2-FLOODING USING ALK(EN)YL POLYGLUCOSIDES
    9.
    发明申请
    METHOD FOR CO2-FLOODING USING ALK(EN)YL POLYGLUCOSIDES 审中-公开
    使用ALK（EN）YL聚葡萄糖苷进行二氧化碳流失的方法

    公开(公告)号：US20170015894A1

    公开(公告)日：2017-01-19

    申请号：US15124959

    申请日：2015-03-06

    Applicant: BASF SE

    Inventor： Christian BITTNER ,  Benjamin WENZKE ,  Guenter OETTER ,  Sebastian A. WEISSE

    IPC: C09K8/584 ,  E21B43/24 ,  E21B43/16 ,  C09K8/594 ,  C09K8/58

    CPC classification number: C09K8/584 ,  C09K8/58 ,  C09K8/594 ,  E21B43/164 ,  E21B43/24 ,  Y02P20/544

    Abstract: A method for mineral oil production by means of CO2 flooding, in which liquid or supercritical CO2 and at least one alk(en)yl polyglucoside are injected through at least one injection well into a mineral oil deposit and mineral oil is withdrawn from the deposit through at least one production well. The alk(en)yl polyglucoside is preferably dissolved in the CO2 phase. A method for mineral oil production by means of CO2 flooding, in which mixtures of the alk(en)yl polyglucosides with alk(en)yl polyalkoxylates or anionic surfactants are used.

    Abstract translation: 通过二氧化碳淹没的矿物油生产方法，其中通过至少一个注入井将液体或超临界CO 2和至少一种烷（en）基多糖苷注入矿物油沉积物中，矿物油通过 至少一个生产井。 烷基（en）基多糖苷优选溶解在CO 2相中。 通过二氧化碳淹没进行矿物油生产的方法，其中使用了烷基（en）基多葡糖苷与烷基氧基化物或阴离子表面活性剂的烷基（en）基的混合物。

Patent Agency Ranking