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    USE OF MULTI-STAGE POLYMERIZATE DISPERSIONS TO COAT METAL SHEETS
    7.
    发明申请
    USE OF MULTI-STAGE POLYMERIZATE DISPERSIONS TO COAT METAL SHEETS 有权
    使用多层聚合物分散体涂覆金属片材

    公开(公告)号：US20150104658A1

    公开(公告)日：2015-04-16

    申请号：US14403824

    申请日：2013-06-04

    Applicant: BASF SE

    Inventor： Ekkehard Jahns ,  Hans-Juergen Denu ,  Sebastian Roller ,  Alexander Kurek

    IPC: C09D151/00 ,  E04D1/22 ,  E04D13/00 ,  E04D1/18 ,  B05D1/36 ,  B05D1/14

    CPC classification number: C09D151/003 ,  B05D1/14 ,  B05D1/36 ,  C04B41/00 ,  C08F2/24 ,  C08F265/06 ,  E04D1/18 ,  E04D1/22 ,  E04D13/00 ,  E04D2001/005 ,  Y10T428/31692 ,  C08F220/58 ,  C08F220/18 ,  C08F2220/1825 ,  C08F2220/585

    Abstract: The present invention relates to the use of aqueous multistage polymer dispersions obtainable by free-radically initiated aqueous emulsion polymerization, having a soft phase and a hard phase and having a hard-to-soft stage ratio of 25% to 95% by weight to 75% to 5% by weight, the glass transition temperature (Tg) of the soft phase, as first stage, being −30 to 0° C. and that of the hard phase, as second stage, being 20 to 60° C., comprising at least one monomer of the general formula I in which the variables have the following definitions: n=0 to 2, R1, R2, R3=independently of one another hydrogen or methyl group, X═O or NH, Y═H, alkali metal or NH4, to coat metal sheets.

    Abstract translation: 本发明涉及通过自由基引发的水性乳液聚合获得的含水多阶段聚合物分散体的使用，其具有软相和硬相，并且具有25％至95％重量至75％的硬 - 软级比 ％至5重量％，作为第一阶段的软相的玻璃化转变温度（Tg）为-30〜0℃，硬相的玻璃化转变温度（Tg）为20〜60℃， 包括至少一种通式I的单体，其中变量具有以下定义：n = 0至2，R 1，R 2，R 3彼此独立地为氢或甲基，X = O或NH，Y = H， 碱金属或NH4，以涂覆金属片。

    Binder system for high-gloss coatings
    9.
    发明授权
    Binder system for high-gloss coatings 有权

    公开(公告)号：US10259967B2

    公开(公告)日：2019-04-16

    申请号：US15532673

    申请日：2015-11-23

    Applicant: BASF SE

    Inventor： Ulrich Tromsdorf ,  Rabie Al-Hellani ,  Frederic Lucas ,  Sebastian Roller

    IPC: C09D133/02 ,  C08F265/06 ,  C09D151/00 ,  C08F2/22 ,  C08F220/14 ,  C09D129/04 ,  C08F220/18

    Abstract: Binder systems for high-gloss coatings and processes for producing them are provided, where the binder systems are prepared by preparing an aqueous polymer dispersion by radically initiated aqueous emulsion polymerization using defined first and second polymerization stages wherein the weight ratio of the sum of the total amounts of first polymerization stage monomers A1 to C1 (total monomer amount 1) to the sum of the total amounts of second polymerization stage monomers A2 to C2 (total monomer amount 2) is in the range 5:95 to 70:30, the amount of chain transfer agent in the second polymerization stage is selected such that the resulting overall polymer has a weight-average molecular weight of ≥15 000 and ≤50 000 g/mol, and the amount of the dispersing assistant is ≤3.0 wt %, based on the sum of total monomer amount 1 and total monomer amount 2 (total monomer amount).

    METHOD FOR PRODUCING RADIATION-CURABLE URETHANE (METH)ACRYLATES
    10.
    发明申请
    METHOD FOR PRODUCING RADIATION-CURABLE URETHANE (METH)ACRYLATES 审中-公开

    公开(公告)号：US20170327626A1

    公开(公告)日：2017-11-16

    申请号：US15520863

    申请日：2015-10-16

    Applicant: BASF SE

    Inventor： Sebastian Roller ,  Christina Haaf-Kleinhubbert ,  Manfred Biehler

    IPC: C08G18/67 ,  C08G18/80 ,  C08G18/48 ,  C09D175/16 ,  C08G18/22

    CPC classification number: C08G18/6795 ,  C08G18/227 ,  C08G18/4883 ,  C08G18/8058 ,  C08G18/8175 ,  C09D175/16

    Abstract: Disclosed are urethane (meth)acrylates obtainable by implementation of the following steps: (r1) partially reacting an alkoxylated polyol (A) with (meth)acrylic acid (B) in the presence of at least one esterification catalyst (C) and at least one polymerization inhibitor (D) and also, optionally, of a solvent (E) that forms an azeotrope with water, (o1) optionally removing at least some of the water formed in r1) from the reaction mixture, it being possible for o1) to take place during and/or after r1), (o2) optionally neutralizing the reaction mixture, (o3) if a solvent (E) has been used, optionally removing this solvent by distillation and/or (o4) stripping with a gas which is inert under the reaction conditions, (r2) reacting the reaction mixture obtained after the last of the above reaction steps with a compound (G) containing at least two epoxy groups, optionally in the presence of a catalyst (H), and (r3) reacting the reaction mixture from (r2) with at least one polyisocyanate (J) and at least one hydroxyalkyl (meth)acrylate (K) and optionally with at least one further compound (M) which contains one or more isocyanate-reactive groups, in the presence of a catalyst (L), with the proviso that the catalyst (L) used in step (r3) is a bismuth-containing catalyst.

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