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    AMINE FUNCTIONAL ANIONIC POLYMER DISPERSION AND COATING COMPOSITIONS THEREOF
    4.
    发明申请
    AMINE FUNCTIONAL ANIONIC POLYMER DISPERSION AND COATING COMPOSITIONS THEREOF 审中-公开

    公开(公告)号：US20190144702A1

    公开(公告)日：2019-05-16

    申请号：US16098159

    申请日：2017-05-02

    Applicant: Allnex Netherlands B.V.

    Inventor： Silfredo Javier BOHORQUEZ ,  Dirk Emiel Paula MESTACH

    IPC: C09D133/12

    Abstract: The invention relates to a process and the product obtainable by the process for the preparation of an aqueous anionically stabilized polymer dispersion comprising a first emulsion polymerization of a first monomer mixture comprising acid functional monomers and substantially no amine functional monomers to form a the first phase oligomer, neutralising and a second emulsion polymerisation in the presence of the emulsion of the first phase of a second monomer mixture comprising amine functional monomers having sterically hindered secondary amine or tertiary amine groups and substantially no acid functional monomers to form a second phase of an amine functional polymer wherein the two phases are unmixed and separate. The invention further relates to the dispersions further comprising reactive and/or non-reactive co-binder, in particular polyepoxide co-binder and also relates to the use of the dispersions for preparation of coating compositions and coatings with anti-bleeding properties.

    AQUEOUS VINYL POLYMER DISPERSION
    6.
    发明公开
    AQUEOUS VINYL POLYMER DISPERSION 审中-公开

    公开(公告)号：US20240309123A1

    公开(公告)日：2024-09-19

    申请号：US18575935

    申请日：2022-03-18

    Applicant: Allnex Netherlands B.V.

    Inventor： Nicole VERHAGEN ,  A.P.M. VAN GORKUM ,  Dirk Emiel Paula MESTACH

    IPC: C08F2/26 ,  C08F8/30 ,  C08F220/14 ,  C08J7/04 ,  C08K5/25 ,  C09D133/12

    CPC classification number: C08F2/26 ,  C08F8/30 ,  C08F220/14 ,  C08J7/0427 ,  C08K5/25 ,  C09D133/12 ,  C08J2333/12

    Abstract: The present invention relates to an aqueous vinyl polymer dispersion comprising: —the reaction product of free radical emulsion polymerized alpha, beta-ethylenically unsaturated monomers (A) of a monomer mixture (A1) and a monomer mixture (A2), and—one or more crosslinker(s) (B), said alpha, beta-ethylenically unsaturated monomers (A) comprising: —one or more alpha, beta-ethylenically unsaturated monomer(s) (i) having a crosslinkable group; —one or more alpha, beta-ethylenically unsaturated monomer(s) (ii) having a silane group; —one or more polyfunctional ethylenically unsaturated monomer(s) (iii); —one or more copolymerizable surfactant(s) (iv); and—further non-ionic alpha, beta-ethylenically unsaturated monomers being different from monomers (i) to (iv). The present invention further relates to a coating composition comprising said aqueous dispersion and to a method for producing a coated substrate comprising said coating composition.

    WATERBORNE COATING COMPOSITION
    9.
    发明申请
    WATERBORNE COATING COMPOSITION 审中-公开

    公开(公告)号：US20200157375A1

    公开(公告)日：2020-05-21

    申请号：US16750049

    申请日：2020-01-23

    Applicant: Allnex Netherlands B.V.

    Inventor： Jaap Michiel AKKERMAN ,  Dirk Emiel Paula MESTACH ,  Wincenty Lambertus Stanislaw PILASZEK ,  Rob ADOLPHS

    IPC: C09D133/12 ,  C08G18/69 ,  C08G18/34 ,  C08G18/08 ,  C08G18/75 ,  C08F283/00 ,  C08G18/62 ,  C09D151/08 ,  C08F220/18 ,  C09D133/14 ,  C09D175/14 ,  C08F220/28

    Abstract: The invention relates to an aqueous dispersion for use as open time improver in a coating composition which aqueous polymer dispersion comprises a first polymer having a number average molecular weight (Mn) of from 2,000 to 120,000 (determined by gel permeation chromatography using a mixture of tetrahydrofurane and acetic acid as eluent), an acid value of from 30 to 150 mg KOH/g, and an ethylene-oxide wt % (on total solid polymer) of from 1 to 20 wt %, said first polymer dispersion being obtainable by free radical polymerization of a monomer mixture in the presence of at least one free-radical initiator and at least one surfactant, said monomer mixture comprising: a) 5 to 20 wt %, preferably 7 to 10 wt %, acid functional ethylenically unsaturated monomers or precursors thereof or ethylenically unsaturated monomers comprising ionic group precursors; b) 5 to 25 wt %, preferably 7 to 20 wt %, ethylenically unsaturated monomers containing polyethylene oxide, polyethylene glycol or mono-alkoxypolyethylene glycol moeity c) up to 90 wt % of non-ionic ethylenically unsaturated monomers other than a) or b); d) 0 to 10 wt % ethylenically unsaturated monomers with a functional group for cross-linking e) 0 to 10 wt % of chain transfer agents; f) up to 90 wt % non-ionic ethylenically unsaturated monomers other than c), wherein 30 to 90 wt %, more preferably 60 to 80 wt % comprise crosslinkable groups or precursors thereof; wherein the sum of a) through f) is 100 wt %. The invention further relates to a method for making the first polymer dispersion, the use of said aqueous dispersion as an open time improver in a coating composition, to aqueous coating compositions comprising a blend of at least a first aqueous polymer dispersion and a second aqueous polymer dispersion comprising a film-forming second polymer and to a method for making said coating composition

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