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    AQUEOUS COATING COMPOSITION WITH SOFT TOUCH UPON DRYING
    11.
    发明申请
    AQUEOUS COATING COMPOSITION WITH SOFT TOUCH UPON DRYING 有权

    公开(公告)号：US20210087427A1

    公开(公告)日：2021-03-25

    申请号：US17109128

    申请日：2020-12-01

    Applicant: DSM IP Assets B.V.

    Inventor： Roel Johannes Marinus SWAANS ,  Ronald TENNEBROEK ,  Gerardus Cornelis OVERBEEK ,  Paul de KOK

    IPC: C09D175/08 ,  C08G18/48 ,  C08J3/03 ,  C08G18/75 ,  C08G18/79 ,  C08G18/08 ,  C08G18/10 ,  C08G18/22 ,  C08L75/08 ,  C08G18/32

    Abstract: Aqueous coating compositions include dispersed polyurethane-vinyl polymer hybrid particles obtained by free-radical polymerization of at least one vinyl monomer in the presence of a polyurethane. The polyurethane and the vinyl polymer in the hybrid particles are present in a weight ratio of polyurethane to vinyl polymer ranging from 1:1 to 20:1, and the polyurethane is the reaction product of at least the following components: (a) from 5 to 40 wt. % of at least one organic difunctional isocyanate, (b) from 0.5 to 4 wt. % of an isocyanate-reactive compound containing ionic or potentially ionic water-dispersing groups having a molecular weight of from 100 to 500 g/mol, (c) from 40 to 80 wt. % of at least one diol having a molecular weight from 500 to 5000, (d) from 0 to 10 wt. % of at least one active-hydrogen chain extending compound with a functionality of at least 2 other than water, (e) from 0 to 10 wt. % of at least one diol having a molecular weight below 500 g/mol. The isocyanate and hydroxy groups on the components used are present in a respective mole ratio (NCO to OH) in the range of from 0.8:1 to 5:1.

    WATERBORNE DISPERSIONS
    12.
    发明申请
    WATERBORNE DISPERSIONS 有权

    公开(公告)号：US20210079209A1

    公开(公告)日：2021-03-18

    申请号：US16772994

    申请日：2018-12-18

    Applicant: DSM IP ASSETS B.V.

    Inventor： Michael Arnoldus Jacobus SCHELLEKENS ,  Johannes Hendrikus DE BONT ,  John BARBOSA ,  Jon Andrew CRONIN ,  Charles SHEARER ,  Matthew Stewart GEBHARD ,  Gerardus Cornelis OVERBEEK

    IPC: C08L53/00 ,  C08F2/22 ,  C08F220/06 ,  C08F220/14 ,  C08F220/18 ,  C08F220/56 ,  C08F287/00 ,  C09D153/00 ,  C08K3/22 ,  C08K5/00

    Abstract: The present invention relates to a waterborne dispersion comprising (A) amphiphilic block copolymer obtained with a controlled radical polymerization process and comprising at least blocks [A] and [B], whereby block [A] comprises ethylenically unsaturated monomer(s) bearing water-soluble and/or water-dispersible functional groups (monomer(s) (i)), and block [B] comprises ethylenically unsaturated monomer(s) different from monomer(s) (i) (monomer(s) (ii)); and (B) polymer P comprising ethylenically unsaturated monomer(s) different from (i) (monomer(s) (ii)), characterized in that the amount of block copolymer is higher than 1 and lower than 30 wt. %, based on the total weight of monomers used to prepare the block copolymer and polymer P; the acid value of the composition consisting of block copolymer and polymer P is higher than 1 and at most 35 mg KOH per g of the block copolymer-polymer P composition; the block copolymer has a calculated glass transition temperature of higher than 10° C. and lower than 250° C.; and polymer P comprises at least 20 wt. % (relative to the total monomer composition to prepare the polymer P) of a polymer fraction with calculated glass transition temperature higher than 10° C. and lower than 100° C.

    AQUEOUS COATING COMPOSITION
    13.
    发明申请
    AQUEOUS COATING COMPOSITION 审中-公开

    公开(公告)号：US20200095460A1

    公开(公告)日：2020-03-26

    申请号：US16483823

    申请日：2018-02-07

    Applicant: DSM IP ASSETS B.V.

    Inventor： Ilse VAN CASTEREN ,  Ronald TENNEBROEK ,  Gerardus Cornelis OVERBEEK ,  Jourraine CELESTIJN ,  Jacobus Willem GRIFFIOEN

    IPC: C09D175/04 ,  C09D15/00

    Abstract: The present invention relates to an aqueous coating composition comprising polyurethane A and vinyl polymer, wherein the polyurethane A comprising as building blocks at least: (a) a polyisocyanate(s) containing at least one cyclic group, (b) a non-cyclic aliphatic diisocyanate(s) whereby the non-cyclic aliphatic group connecting the two isocyanate groups has 5 carbon atoms, and (c) a component(s) containing an isocyanate-reactive group(s), whereby the summed amount of (a) and (b) is 10 to 60 wt. %, relative to the total weight amount of components used to prepare the polyurethane A; and whereby the weight ratio between (a) and (b) is in the range from 50:50 to 99:1.

    AQUEOUS POLYMER EMULSION
    15.
    发明申请
    AQUEOUS POLYMER EMULSION 审中-公开

    公开(公告)号：US20180030186A1

    公开(公告)日：2018-02-01

    申请号：US15550565

    申请日：2016-02-12

    Applicant: DSM IP ASSETS B.V.

    Inventor： Tijs NABUURS ,  Jeffrey STUBBS ,  Johannes Hendrikus DE BONT ,  Gerardus Cornelis OVERBEEK

    IPC: C08F222/14 ,  C09D135/02

    CPC classification number: C08F222/14 ,  C08F220/06 ,  C08F2220/1858 ,  C09D135/02 ,  C08F220/14

    Abstract: The present invention relates to an aqueous polymer emulsion comprising at least 30 wt. % of a vinyl copolymer (A), said vinyl copolymer comprising: (I) from 10 to 90 wt. % of 2-octyl acrylate monomer; (II) from 10 to 90 wt. % of at least one itaconate ester monomer according to formula (1) in which A and B may be different or the same and A and B are independently an alkyl group or an aryl group; and (III) from 0 to 80 wt. % of ethylenically unsaturated monomer other than (I) and (II); whereby the summed amount of (I), (II) and (III) is 100 wt. % and whereby the amount of vinyl copolymer (A) is given relative to the total weight amount of the polymers present in the emulsion.

    POLYMER, PROCESS AND USE
    16.
    发明申请
    POLYMER, PROCESS AND USE 审中-公开

    公开(公告)号：US20170240765A1

    公开(公告)日：2017-08-24

    申请号：US15519354

    申请日：2015-10-21

    Applicant: DSM IP Assets B.V.

    Inventor： Tijs NABUURS ,  Willem-Jan SOER ,  Gerardus Cornelis OVERBEEK

    IPC: C09D151/00 ,  C23C26/00 ,  B05D7/02 ,  B05D7/08 ,  B05D7/14 ,  C08F265/06 ,  C03C17/32

    Abstract: The current invention relates to a process for preparing an aqueous binder composition free of organic solvent, the process comprising at least the following steps: A) preparing a hydrophilic vinyl polymer (Polymer A) by polymerisation of a monomer composition A that contains: Ai) at least one carboxylic acid functional olefinically unsaturated monomer; and Aii) at least one olefinically unsaturated monomer different than Ai); and Aiii) optionally at least one wet adhesion promoting olefinically unsaturated monomer different than Ai and Aii); where Polymer A has an acid value (AV) from 32 to 98 mg KOH/g of solid Polymer A; B) preparing a hydrophobic vinyl polymer (Polymer B) by emulsion polymerization of a monomer composition B in the presence of Polymer A where the monomer composition B contains: Bi) at least one olefinically unsaturated monomer; Bii) optionally carboxylic acid functional olefinically unsaturated monomer different than Bi); and Biii) optionally wet adhesion promoting olefinically unsaturated monomer different than Bi); where Polymer B has an acid value (AV) of no more than 23.4 mg KOH/g of solid polymer B, wherein at least a part of the carboxylic acid groups that are present in Polymer A and Polymer B are neutralized during or following the steps A and/or B to form a (partially) neutralized polymer emulsion; where the weight average molecular weight (Mw) of Polymer A is lower than the weight average molecular weight (Mw) of polymer B; and wherein the process is further characterized by the presence of a further step C) reacting at least 10 mol % of the carboxylic acid and/or carboxylate salt groups of the (partially) neutralized polymer emulsion with an iminating agent to produce an iminated polymer C; wherein the total amount of surfactant applied in steps A, B and C is at most 0.5 wt. %, based on the total weight of monomers charged for the preparation of polymer A and polymer B

    ADHESION TO METAL SURFACES WITH BLOCK COPOLYMERS OBTAINED USING RAFT
    17.
    发明申请
    ADHESION TO METAL SURFACES WITH BLOCK COPOLYMERS OBTAINED USING RAFT 审中-公开

    公开(公告)号：US20140170428A1

    公开(公告)日：2014-06-19

    申请号：US14188624

    申请日：2014-02-24

    Applicant: DSM IP ASSETS B.V.

    Inventor： Michael Arnoldus Jacobus SCHELLEKENS ,  Tijs NABUURS ,  John GEURTS ,  Gerardus Cornelis OVERBEEK

    IPC: C09D153/00 ,  B32B15/082 ,  C23F11/00

    CPC classification number: B32B15/082 ,  C08F2/22 ,  C08F2/38 ,  C08F293/005 ,  C08L53/00 ,  C08L53/005 ,  C08L2666/02 ,  C09D153/00 ,  C09J153/00 ,  C23F11/00 ,  Y10T428/31692

    Abstract: An aqueous, metal, coating composition (and process for obtaining it) comprising a block copolymer and a polymer P; wherein the block copolymer comprises at least blocks [A]x[B]y, where at least block [A] is obtained by a controlled radical polymerisation of at least one ethylenically unsaturated monomer via a reversible addition-fragmentation chain transfer (RAFT) mechanism in solution in the presence of a control agent and a source of free radicals; and where (a) block [A] comprises (i) 0 to 80 mol % of metal adhering ethylenically unsaturated monomers; (ii) 0 to 100 mol % of water dispersible ethylenically unsaturated monomers; (iii) 0 to 70 mol % of C1 to C30 hydrocarbo (meth)acrylate and/or styrenic monomers; (iv) 0 to 35 mol % of ethylenically unsaturated monomer different from i), ii)+iii); where the amount of at least one of i), ii), iii)+iv) is >0 mol %; block [A] has a Hansch parameter x); and (c) polymer P is obtained by an emulsion polymerisation process in the presence of the block copolymer [A][B] and comprises: i) 0 to 5 wt % of metal adhering ethylenically unsaturated monomers; ii) 0 to 15 wt % of water dispersible ethylenically unsaturated monomers; iii) 50 to 100 wt % C1 to C30 hydrocarbo (meth)acrylate and/or styrenic monomers; and iv) 0 to 35% by weight of ethylenically unsaturated monomers units different from those from i), ii)+iii).

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