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    WATER-SOLUBLE OR WATER DISPERSIBLE COPOLYMERS HAVING OXAZOLINE AND SULFONIC ACID FUNCTIONAL GROUPS
    15.
    发明公开
    WATER-SOLUBLE OR WATER DISPERSIBLE COPOLYMERS HAVING OXAZOLINE AND SULFONIC ACID FUNCTIONAL GROUPS 审中-公开

    公开(公告)号：EP3608344A1

    公开(公告)日：2020-02-12

    申请号：EP19189937.6

    申请日：2019-08-05

    Applicant: BASF SE

    Inventor： AMIRI NAINI, Crispin ,  ROSCHMANN, Konrad

    IPC: C08F220/14 ,  C08L33/06 ,  C08L33/26

    Abstract: The present application relates to water-soluble or water dispersible copolymers P which is obtainable by copolymerizing a monomer composition of ethylenically unsaturated monomers M comprising
    a) 50 to 92 wt.-%, in particular 53 to 87 wt.-%, especially 55 to 83 wt.-%, based on the total amount of monomers M, of at least one monoethylenically unsaturated monomer M.a selected from the group consisting of nonionic esters of methacrylic acid and C 8 -C 20 -vinyl aromatic monomers,
    b) 3 to 30 wt.-%, in particular 5 to 25 wt.-%, especially 7 to 20 wt.-%, based on the total amount of monomers M, of at least one monoethylenically unsaturated monomer M.b which comprises at least one sulfonic acid group or a salt thereof,
    c) 5 to 35 wt.-%, in particular 8 to 30 wt.-%, especially 10 to 25 wt.-%, based on the total amount of monomers M, of at least one monoethylenically unsaturated monomer M.c which comprises at least one oxazoline group,
    d) less than 10 wt.-%, in particular at most 5 wt.-% and especially at most 1 wt.-%, based on the total amount of monomers M, of a monoethylenically unsaturated monomer M.d selected from the group consisting of C 1 -C 20 -alkylesters of acrylic acid,
    where the copolymers P do essentially not contain copolymerized monomers bearing a carboxyl group and where the copolymers P have a glass transition temperature, as determined by differential scanning calorimetry according to ISO 11357-2:2013-05, of at most 90°C, in particular at most 85°C and especially at most 80°C.
    The present application also relates to a process for preparing the copolymers P and to aqueous solutions or dispersions of the copolymer P. Furthermore, the present application relates to the use of the copolymers P for crosslinking of polyfunctional polymers.

    WÄSSRIGE BESCHICHTUNGSZUSAMMENSETZUNG MIT NIEDRIGEM VOC-GEHALT
    17.
    发明授权
    WÄSSRIGE BESCHICHTUNGSZUSAMMENSETZUNG MIT NIEDRIGEM VOC-GEHALT 有权
    具有低VOC含量的水性涂料组合物

    公开(公告)号：EP1957592B1

    公开(公告)日：2012-03-07

    申请号：EP06819488.5

    申请日：2006-11-15

    Applicant: BASF SE

    Inventor： ROSCHMANN, Konrad ,  LEUNINGER, Jörg ,  DERSCH, Rolf

    IPC: C09D133/00

    CPC classification number: C09D133/066 ,  C08L2666/02

    Abstract: The present invention relates to aqueous coating compositions comprising (a) an acrylate-based binder containing 1% to 10% by weight of at least one hydroxy-functional comonomer of the general formula (I) A-[B]n-C, where A is a polymerizable group, B is a spacer and C is a hydroxy-functional radical, and n is 0 or 1, (b) at least one pigment, (c) water, (d) less than 3% by weight of anti-freeze agent, and also, if desired, further, customary auxiliaries.

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