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    FEINTEILIGE WÄSSRIGE EMULSIONSPOLYMERISATE UND DEREN VERWENDUNG FÜR HYDROPHOBE BESCHICHTUNGEN
    1.
    发明公开
    FEINTEILIGE WÄSSRIGE EMULSIONSPOLYMERISATE UND DEREN VERWENDUNG FÜR HYDROPHOBE BESCHICHTUNGEN 审中-公开
    FEINTEILIGEWÄSSRIGEEMULSION SPOLYMERISATE UND DEREN VERWENDUNGFÜRHYDROPHOBE BESCHICHUNGUNG

    公开(公告)号：EP3194454A2

    公开(公告)日：2017-07-26

    申请号：EP15775396.3

    申请日：2015-09-18

    Applicant: BASF SE

    Inventor： BALK, Roelof ,  LOHMEIJER, Bastiaan

    IPC: C08F2/26 ,  C08F265/06 ,  C09D151/00

    CPC classification number: C08F265/06 ,  C08F2/26 ,  C09D5/00 ,  C09D151/003 ,  C08F220/28 ,  C08F2220/286 ,  C08F220/38 ,  C08F2220/382 ,  C08F230/02

    Abstract: The present invention relates to a polymer dispersion which can be obtained by at least one two-stage emulsion polymerization, wherein 1) a polymer A is produced by free-radical polymerization of a first composition, comprising A) at least one monomer, and B) at least one anionic copolymerizable emulsifying agent, 2) the polymer A produced in 1) is mixed with a base, and 3) a polymer B is produced by radical polymerization of a second composition in the presence of the polymer A treated in 2), comprising A) at least one monomer, and B) at least one anionic copolymerizable emulsifying agent. The present invention also relates to a method for producing the polymer dispersion according to the invention, to coating agents in the form of an aqueous composition containing the polymer dispersion according to the invention, and to the use of the polymer dispersion according to the invention for coating materials or paints.

    Abstract translation: 本发明涉及可通过至少一种两阶段乳液聚合获得的聚合物分散体，其中1）聚合物A通过第一组合物的自由基聚合制备，所述第一组合物包含A）至少一种单体和B ）至少一种阴离子可共聚乳化剂，2）1）中制备的聚合物A与碱混合，3）聚合物B通过在2）中处理的聚合物A的存在下，通过第二组合物的自由基聚合而制备， 包含A）至少一种单体，和B）至少一种阴离子可共聚乳化剂。 本发明还涉及用于生产根据本发明的聚合物分散体的方法，以含有根据本发明的聚合物分散体的含水组合物形式的包衣剂，以及根据本发明的聚合物分散体用于 涂料或油漆。

    VERWENDUNG WÄSSRIGER POLYMERISATDISPERSIONEN ZUR VERBESSERUNG DER RESISTENZ GEGENÜBER CHEMISCHEN EINFLÜSSEN
    7.
    发明公开
    VERWENDUNG WÄSSRIGER POLYMERISATDISPERSIONEN ZUR VERBESSERUNG DER RESISTENZ GEGENÜBER CHEMISCHEN EINFLÜSSEN 有权
    使用水性聚合物提高化学试剂性

    公开(公告)号：EP2791180A1

    公开(公告)日：2014-10-22

    申请号：EP12794982.4

    申请日：2012-12-05

    Applicant: BASF SE

    Inventor： ROLLER, Sebastian ,  DERSCH, Rolf ,  DITTRICH, Uwe ,  BALK, Roelof ,  LOHMEIJER, Bas ,  TROMSDORF, Ulrich

    IPC: C08F2/22 ,  C08F265/00 ,  C08F291/12 ,  C08L33/04 ,  C08L35/00 ,  C09D133/00

    CPC classification number: C08F2/001 ,  C08F2/26 ,  C08F265/10 ,  C09D133/08 ,  C09D133/10 ,  C09D133/14 ,  C09D151/003 ,  C08F220/06 ,  C08F220/18 ,  C08F220/34

    Abstract: The present invention relates to the use of an aqueous polymer dispersion, which can be obtained by polymerising a composition (1) of compounds (monomers) having at least one ethylenically unsaturated group by means of the radical aqueous polymerisation method up to a conversion rate of at least (90), preferably at least (95) and particularly preferably at least 98% by weight, relative to the monomer composition (1) to be polymerised (polymerisation stage 1) and then, in the presence of the product mixture from polymerisation stage (1), polymerising a composition (2) of compounds (monomers) having at least one ethylenically unsaturated group, according to the method of radical aqueous emulsion polymerisation (polymerisation stage 2) with the proviso that: a) the composition (1) is to be furnished in such a way that a polymer (1) would be obtained solely through statistical co-polymerisation of the composition (1), the glass transition temperature of said polymer being Tg1 >0°C, preferably >10°C, particularly preferably >20°C, b) the composition 2 is to be furnished in such a way that a polymer 2 would be obtained solely through statistical co-polymerisation of the composition 2, the glass transition temperature of said polymer being Tg2 >80°C, preferably >100°C, c) the amount of the difference between Tg1 and Tg2 is at least 50°C, d) in addition to the monomers in compositions 1 and 2, at least one adhesive monomer different from these monomers and containing at least one ethylenically unsaturated group and the element nitrogen, is co-polymerised in a quantity of 0.1 to 10% by weight, preferably 0.5 to 5% by weight, particularly preferably 1 to 3% by weight relative to the overall quantity of the monomers to be polymerised, e) of the total quantity of the adhesive monomers to be co-polymerised in accordance with d), 20 to 100 mo. % by weight is also polymerised in polymerisation stage 1 and f) the quantity of the composition i, which is to be assigned to the lower threshold value Tgi, relative to the overall quantity of compositions 1 and 2, is 60 to 90% by weight, preferably 70 to 85% by weight, g) and in addition to the monomers in compositions 1 and 2, at least one of one monomer different from said monomers, selected from the group of itaconic acid, acetoacetoxyethyl(meth)acrylate (AAEM), acrylonitrile in a quantity of 0.2 to 2% by weight relative to the overall quantity of the monomers to be polymerised, preferably in polymerisation stage (1), is co-polymerised for the coating compositions with improved resistance to chemicals.

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