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    Copolymer and pigmented coating agent containing the copolymer
    3.
    发明授权
    Copolymer and pigmented coating agent containing the copolymer 有权

    公开(公告)号：US10689468B2

    公开(公告)日：2020-06-23

    申请号：US15532355

    申请日：2015-11-20

    申请人： BASF Coatings GmbH

    发明人： Andreas Poppe ,  Norbert Loew ,  Cathrin Corten ,  Britta Schnieders ,  Wei Qiu Hu

    IPC分类号： C08F220/14 ,  C09D143/04 ,  C09D133/06 ,  B05D7/00 ,  C09D5/00 ,  C09D133/12 ,  C09D167/02

    摘要： The present invention relates to a copolymer (A) having a glass transition temperature Tg of at least −30° C. obtainable by copolymerization of a mixture of olefinically unsaturated monomers (a) in at least one organic solvent and in the presence of at least one initiator, where the mixture of monomers (a) to be polymerized comprises (a1) 10 to 60 mol % of at least one monomer of the formula (I) below where R1=C1 to C4 alkoxy, R2=C1 to C4 alkyl, and m=0 to 2, and (a2) 40 to 90 mol % of at least one olefinically unsaturated monomer selected from the group consisting of monomers of the formulae H2C═CH2—(C═O)—O—Rx, H2C═CH(CH3)—(C═O)—O—Rx, and H2C═CH2—O—(C═O)—Rx, where Rx is an alkyl radical having 1 to 20 carbon atoms, and where the sum total of the molar fractions of the monomers (a1) and (a2), based on the total molar amount of monomers (a) used, is at least 90 mol %, and where the copolymerization is carried out at a temperature from 60 to 200° C. and at a pressure of at least 2 bar.

    AQUEOUS BASE COATS HAVING AN IMPROVED RING LINE STABILITY
    4.
    发明申请
    AQUEOUS BASE COATS HAVING AN IMPROVED RING LINE STABILITY 审中-公开

    公开(公告)号：US20200017712A1

    公开(公告)日：2020-01-16

    申请号：US16335312

    申请日：2017-09-13

    申请人： BASF Coatings GmbH

    发明人： Bernhard Steinmetz ,  Norbert Loew

    IPC分类号： C09D175/16 ,  C09D167/02 ,  B05D7/00 ,  B05D7/16

    摘要： An aqueous basecoat material with improved circulation line stability is disclosed. The aqueous basecoat material includes at least one hydroxyl-functional polymer as a binder component and at least one binder component which is different from the hydroxyl-functional polymer. The aqueous basecoat material also includes at least one carbonyl group-containing polyurethane poly(meth)acrylate and also at least one organic compound having at least two hydrazine, hydrazide and/or hydrazone groups. The aqueous basecoat material also includes at least one branched and/or secondary aliphatic monoalcohol having at least four carbon atoms.

    Aqueous base coats having an improved ring line stability
    5.
    发明授权
    Aqueous base coats having an improved ring line stability 有权

    公开(公告)号：US10822521B2

    公开(公告)日：2020-11-03

    申请号：US16335312

    申请日：2017-09-13

    申请人： BASF Coatings GmbH

    发明人： Bernhard Steinmetz ,  Norbert Loew

    IPC分类号： C09D175/16 ,  C09D167/02 ,  C08K5/05 ,  B05D5/00 ,  B05D7/16 ,  B05D7/00

    摘要： An aqueous basecoat material with improved circulation line stability is disclosed. The aqueous basecoat material includes at least one hydroxyl-functional polymer as a binder component and at least one binder component which is different from the hydroxyl-functional polymer. The aqueous basecoat material also includes at least one carbonyl group-containing polyurethane poly(meth)acrylate and also at least one organic compound having at least two hydrazine, hydrazide and/or hydrazone groups. The aqueous basecoat material also includes at least one branched and/or secondary aliphatic monoalcohol having at least four carbon atoms.

    Pigmented coating agent and coatings produced therefrom
    6.
    发明授权
    Pigmented coating agent and coatings produced therefrom 有权

    公开(公告)号：US10465088B2

    公开(公告)日：2019-11-05

    申请号：US15528269

    申请日：2015-11-20

    申请人： BASF Coatings GmbH

    发明人： Andreas Poppe ,  Norbert Loew ,  Cathrin Corten ,  Britta Schnieders ,  Wei Qiu Hu

    IPC分类号： C09D133/08 ,  C08F220/14 ,  C09D133/06 ,  C09D143/04 ,  C09D7/61 ,  B05D7/00 ,  C09D133/12 ,  C09D167/02 ,  C08F220/12

    摘要： The present invention relates to a solventborne, pigmented coating composition having a solids fraction of at least 35%, which comprises, based on the total amount of the coating composition, 0.1 to 1.5 wt % of at least one copolymer (A), where the copolymer (A) is obtainable by copolymerization of a mixture of olefinically unsaturated monomers (a) in at least one organic solvent, the mixture of monomers (a) to be polymerized consists of (a1) 10 to 60 mol % of at least one monomer of the formula (I) below where R1═C1 to C4 alkoxy, R2═C1 to C4 alkyl, and m=0 to 2, and also (a2) 40 to 90 mol % of at least one further olefinically unsaturated monomer, and the copolymer (A) possesses a glass transition temperature Tg of at least −30° C. The present invention also relates to a method for producing a multicoat paint system using the coating composition, and to the multicoat paint systems themselves.