中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

21 records (took 0.011 seconds)

    PARTICLE SIZE CONTROL METHOD
    1.
    发明申请
    PARTICLE SIZE CONTROL METHOD 有权

    公开(公告)号：US20230053620A1

    公开(公告)日：2023-02-23

    申请号：US17759255

    申请日：2021-02-03

    Applicant: COATEX

    Inventor： Benoit MAGNY ,  Celine METHIVIER ,  Jacques MONGOIN

    IPC: C09C3/04 ,  C01B25/01 ,  C09K23/52 ,  C08F20/06

    Abstract: The invention relates to a method for grinding phosphate rock in the presence of a particular anionic polymer having a molecular weight of between 1000 and 90000 g/mol, which makes it possible to control the extent (S) of the volume distribution of the particle size of obtained phosphate mineral particles. The invention also relates to a method for improving the production yield of a phosphate rock grinding method.

    WATER-SOLUBLE COPOLYMER AND USE THEREOF AS DISPERSANT FOR SUSPENSION OF PARTICLES
    5.
    发明申请
    WATER-SOLUBLE COPOLYMER AND USE THEREOF AS DISPERSANT FOR SUSPENSION OF PARTICLES 审中-公开

    公开(公告)号：US20200291152A1

    公开(公告)日：2020-09-17

    申请号：US16088225

    申请日：2017-03-29

    Applicant: COATEX

    Inventor： Mehdi BOUZID ,  Clementine CHAMPAGNE ,  Benoit MAGNY ,  Jean-Marc SUAU

    IPC: C08F220/06 ,  C08K3/22 ,  C09D133/02 ,  C09D5/02

    Abstract: The invention relates to the field of preparing aqueous dispersions of organic, organometallic or inorganic particles. In particular, the invention relates to the preparation of aqueous suspensions comprising organic, organometallic or inorganic particles and at least one particular copolymer obtained by polymerization of at least one acid and at least one compound or at least one ester derived from a particular acid, in the presence of water, at least one initiator compound and at least one activator compound, followed by total or partial neutralization by means of at least one compound chosen from alkali metal hydroxides, alkaline earth metal hydroxides, alkaline earth metal dihydroxides and mixtures thereof. The invention relates to such a particular copolymer having a low polydispersity index and weight-average molecular weight, the preparation process thereof and the use thereof, especially for the preparation of an aqueous paint composition.

    COPOLYMER AND HYDRAULIC BINDER COMPOSITION
    7.
    发明申请
    COPOLYMER AND HYDRAULIC BINDER COMPOSITION 有权

    公开(公告)号：US20220371957A1

    公开(公告)日：2022-11-24

    申请号：US17621304

    申请日：2020-06-23

    Applicant: COATEX

    Inventor： Benoit MAGNY ,  Michel MELAS ,  Laurie PARRENIN ,  Jean-Marc SUAU

    IPC: C04B24/26 ,  C04B24/16

    Abstract: A copolymer may be obtained by polymerization reaction(s) using an anionic monomer and two polyethoxylated monomers. Such copolymers may have a polydispersity index, determined by size exclusion chromatography (SEC), of less than 3, and be obtained by at least one radical polymerisation reaction in water at a temperature ranging from 10 to 90° C. A composition may include such copolymers. Such copolymers may be prepared and use as a superplasticizer for a hydraulic binder composition.

    HEAT-STABILIZED AQUEOUS COMPOSITION
    8.
    发明申请
    HEAT-STABILIZED AQUEOUS COMPOSITION 有权

    公开(公告)号：US20220356284A1

    公开(公告)日：2022-11-10

    申请号：US17785547

    申请日：2020-12-14

    Applicant: COATEX

    Inventor： Lori HOWELL ,  Haksu LEE ,  Benoit MAGNY ,  Yves MATTER ,  Denis RUHLMANN ,  Jean Marc SUAU

    IPC: C08F220/18 ,  C09D7/65 ,  C09D7/48

    Abstract: A preparation of an aqueous composition that is resistant to temperature variations may include the use of at least one specific heat-stabilizing agent. The heat stabilization of the viscosity of the aqueous composition within a wide temperature range. Such heat-stabilizing agents may include, in polymerized form: (a1) an anionic monomer comprising a polymerizable olefinic unsaturation and a carboxylic acid group, optionally in salt form; (a2) a C1-C7 ester of acrylic acid, methacrylic acid, maleic acid, and/or itaconic acid; (a3) an associative monomer of a formula, R1-(EO)m-(PO)n-R2, wherein m and n are independently 0 or an integer or decimal less than 150, m or n being different from 0, EO is independently a CH2CH2O group, PO is independently a combination of (i) CH2CH2O and (ii) CH(CH3)CH2O and/or CH2CH(CH3)O, R1 is independently a group comprising a polymerizable olefinic unsaturation, and R2 is independently a straight C28-C40-alkyl group or a C28-C40-alkyl group.

    METHOD OF MILLING MINERALS IN THE PRESENCE OF A POLY (ITACONATE)
    9.
    发明申请
    METHOD OF MILLING MINERALS IN THE PRESENCE OF A POLY (ITACONATE) 审中-公开

    公开(公告)号：US20200291239A1

    公开(公告)日：2020-09-17

    申请号：US16342431

    申请日：2017-11-08

    Applicant: COATEX

    Inventor： Henri GRONDIN ,  Christian JACQUEMET ,  Benoit MAGNY

    IPC: C09C3/04 ,  D21D99/00 ,  C08F222/02 ,  D21H19/64 ,  C08F2/38 ,  C08F8/44 ,  C08K3/32

    Abstract: The invention relates to a method for producing particles of mineral material comprising grinding of at least one mineral material in the presence of water. The grinding according to the invention is carried out in the presence of at least one polymer obtained by a radical polymerization reaction of a partial sodium salt of itaconic acid and partial decarboxylation of the polymer obtained followed by partial or total neutralization of the decarboxylated polymer. The invention also relates to an aqueous composition comprising particles of ground mineral material and such a polymer, in particular a mass-loading composition for the production of paper or a paper-coating-colour composition.

Patent Agency Ranking