中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

146 records (took 0.02 seconds)

    Method for stabilizing sandy soils
    2.
    发明授权
    Method for stabilizing sandy soils 有权

    公开(公告)号：US11725144B2

    公开(公告)日：2023-08-15

    申请号：US17058286

    申请日：2019-05-23

    Applicant: S.P.C.M. SA

    Inventor： Alexandre Omont ,  Xavier Riveau

    IPC: C09K17/22 ,  C08L33/02 ,  C08L33/26

    CPC classification number: C09K17/22 ,  C08L33/02 ,  C08L33/26

    Abstract: A method of stabilizing sandy soils is provided wherein 0.5 to 5 L·m−2 of an aqueous solution S having less than 2000 ppm of at least one water-soluble polymer is applied to the surface of a sandy soil in order to combat the phenomenon of wind erosion. The polymer may include ethylenically unsaturated monomers having at least one hydroxyalkylated monomer of formula (I) H2C═CR1R2 in which R1 is a hydrogen atom or a methyl group and R2 being a hydrocarbon group containing at least one pendant group OH and optionally at least one N or O heteroatom in the hydrocarbon chain. This method is particularly applicable for the stabilization of mobile dunes and the suppression of sand migration that can impact infrastructure, inhabited areas and agricultural areas in arid, semi-arid and dry sub-humid areas.

    TRANSPARENT COMPOSITION FOR USE IN SKINCARE AND/OR HAIRCARE
    3.
    发明申请
    TRANSPARENT COMPOSITION FOR USE IN SKINCARE AND/OR HAIRCARE 有权

    公开(公告)号：US20220409517A1

    公开(公告)日：2022-12-29

    申请号：US17787612

    申请日：2020-12-22

    Applicant: S.P.C.M. SA

    Inventor： Xavier ALVES ,  Frédéric BLONDEL

    IPC: A61K8/81 ,  A61Q5/02 ,  A61Q19/00 ,  C08F220/60 ,  C08F220/34 ,  C08F220/58

    Abstract: This invention concerns a transparent composition comprising at least a first amphoteric water-soluble polymer, which comprises: A units of a cationic monomer selected from: acidified or quaternised dimethylaminoethyl acrylate salts, acidified or quaternised dimethylaminoethyl methacrylate salts, acidified or quaternised dimethylaminopropyl acrylamide salts, and acidified or quaternised dimethylaminopropyl methacrylamide salts, and mixtures thereof; B units of 2-acrylamido-2-methylpropanesulphonic acid and/or salts thereof; and optionally C units of acrylamide, characterised in that the molar ratio between the A units of cationic monomer and the B units of 2-acrylamido-2-methylpropanesulphonic acid and/or salts thereof is between 0.4 and 1.4.

    Seed treatment using hydroswellable polymer
    4.
    发明授权
    Seed treatment using hydroswellable polymer 有权

    公开(公告)号：US11523609B2

    公开(公告)日：2022-12-13

    申请号：US16060752

    申请日：2016-12-08

    Applicant: S.P.C.M. SA

    Inventor： Alexandre Omont ,  Charles Lecointe

    IPC: A01C1/06 ,  A01N25/04 ,  C09D5/02 ,  A01N25/00 ,  A01N25/12 ,  A01N25/10 ,  C09D133/02 ,  C09D133/26

    Abstract: The invention relates to the field concerning the treatment of plant material, particularly plant material for propagation or reproduction e.g. seeds. The method of the invention comprises the application, to all or part of the surface of plant material, of an aqueous dispersion comprising (a) particles of at least one water-swellable polymer and (b) at least one compound selected from among a mineral salt, organic salt, dispersant organic polymer and mixtures thereof.
    The invention also relates to this treated plant material and to use thereof for cultivating or producing a plant.

    Composition for oil and gas recovery
    5.
    发明授权
    Composition for oil and gas recovery 有权

    公开(公告)号：US11155749B1

    公开(公告)日：2021-10-26

    申请号：US17132480

    申请日：2020-12-23

    Applicant: S.P.C.M. SA

    Inventor： Cédrick Favero ,  Siham Telitel

    IPC: C09K8/588 ,  C09K8/68 ,  E21B43/20 ,  E21B43/267 ,  C09K8/80 ,  C08F220/34

    Abstract: A composition for preparing an injection fluid in oil and gas recovery comprising an inverse emulsion of a water-soluble polymer A comprising cationic monomer units, and solid particles of a water-soluble polymer B comprising cationic monomer units, and wherein water-soluble polymer A comprises between 10 and 40 mol % of a cationic monomer units based on the total amount of monomer units; and wherein the cationicity in mol % of polymer A is superior or equal to the cationicity in mol % of polymer B. Method of treating a portion of subterranean formation comprising providing said composition, preparing an injection fluid with at least said composition, introducing the injection fluid into portion of the subterranean formation. The composition is particularly useful to prepare fracturing fluid in fracturing operations.

    HYDRATED CRYSTALLINE FORM OF 2-ACRYLAMIDO-2-METHYLPROPANE SULFONIC ACID
    8.
    发明申请
    HYDRATED CRYSTALLINE FORM OF 2-ACRYLAMIDO-2-METHYLPROPANE SULFONIC ACID 审中-公开

    公开(公告)号：US20200377449A1

    公开(公告)日：2020-12-03

    申请号：US16926159

    申请日：2020-07-10

    Applicant: S.P.C.M. SA

    Inventor： Cédrick FAVERO ,  Johann KIEFFER

    IPC: C07C309/15 ,  C08F20/58 ,  C09K8/68 ,  C09K8/80 ,  E21B43/26 ,  C09K8/588 ,  E21B43/16 ,  C02F11/147 ,  C02F1/56

    Abstract: The present invention relates to a hydrated crystalline form of 2 -acrylamido-2-methylpropane sulfonic acid having a 2-theta powder X-ray diffraction diagram comprising peaks at 10.58°, 11.2°, 12.65°, 13.66°, 16.28°, 18.45°, 20°, 20.4°, 22.5°, 25.5°, 25.88°, 26.47°, 28.52°, 30.28°, 30.8°, 34.09°, 38.19°, 40.69°, 41.82°, 43.74°, 46.04° degrees (+/− 0.1°.The present invention also relates to a production method for this form of 2-acrylamido-2-methylpropane sulfonic acid and a preparation method for an aqueous solution A of a salt of this form of 2-acrylamido-2-methylpropane sulfonic acid, and the (co)polymer of this form of -acrylamido-2-methylpropane sulfonic acid.

    Device for dispersing a water-soluble polymer
    9.
    发明授权
    Device for dispersing a water-soluble polymer 有权

    公开(公告)号：US10773223B2

    公开(公告)日：2020-09-15

    申请号：US16524959

    申请日：2019-07-29

    Applicant: S.P.C.M. SA

    Inventor： Julien Bonnier ,  Emmanuel Pich

    IPC: B01F7/00 ,  B01F1/00 ,  B01F13/10 ,  B02C18/08 ,  B02C18/18

    Abstract: A device for dispersing a water-soluble polymer includes a primary water inlet circuit that feeds an overflow, at the bottom end of the cone, an assembly including a chamber for grinding and draining the dispersed polymer, having a rotor driven by a motor provided with knives, a stator, over all or part of the periphery of the chamber, a ring fed by a secondary water circuit, the ring communicating with the chamber by way of slots for spraying pressurized water onto the stator The slots of the stator and/or the knives of the rotor are tilted at an angle of between 20° and 80° relative to the horizontal plane of the stator and the lateral face of the blade next to the stator is curved in such a way as to make the distance separating the two components substantially constant.

    Composition for oil and gas recovery
    10.
    发明授权
    Composition for oil and gas recovery 有权

    公开(公告)号：US10647908B2

    公开(公告)日：2020-05-12

    申请号：US16523599

    申请日：2019-07-26

    Applicant: S.P.C.M. SA

    Inventor： Cédrick Favero

    IPC: C09K8/588 ,  C09K8/64 ,  E21B43/16 ,  E21B43/26 ,  C09K8/80 ,  E21B43/22

    Abstract: Provided is a composition for preparing injection fluid in oil and gas recovery comprising an inverse emulsion of a water-soluble polymer A comprising acrylamide monomer units, and solid particles of a water-soluble polymer, wherein water-soluble polymer B is obtained by a polymerization step of at least acrylamide and 1 and 15 mol % of acrylamido tertiary butyl sulfonic acid (ATBS), and/or salts thereof, and a subsequent post treatment step of the resulting polymer. Also provided is a method of treating a portion of subterranean formation comprising providing the composition, preparing an injection fluid with at least the composition, introducing the injection fluid into portion of the subterranean formation. The composition is particularly useful to prepare fracturing fluid in fracturing operations.

Patent Agency Ranking