公开(公告)号：US20250026867A1

公开(公告)日：2025-01-23

申请号：US18711652

申请日：2022-11-22

Applicant: BASF SE

Inventor： Martin Robert SCHEUBLE ,  Immanuel WILLERICH ,  Joerg-Alexander DIMMER ,  Jochen GATTERMAYER ,  Felix LAUTERBACH

IPC: C08F2/26 ,  C08F265/06 ,  C09D7/41 ,  C09D151/00

Abstract: The present invention relates to a process for preparing an aqueous polymer dispersion comprising using a first aqueous mixture M(1) and a second aqueous mixture M(2), an aqueous polymer dispersion obtainable or obtained by said process and a use of said dispersion as a binder, preferably for decorative coatings. Further, the present invention relates to a coating, such as paint and paint formulation comprising said dispersion.

公开(公告)号：US20240425628A1

公开(公告)日：2024-12-26

申请号：US18274038

申请日：2022-01-26

Applicant: BASF SE

Inventor： Martin Robert SCHEUBLE ,  Ivan CABRERA ,  Joerg Alexander DIMMER ,  Immanuel WILLERICH

IPC: C08F212/08 ,  C08F2/26 ,  C08K3/22 ,  C08K3/26 ,  C08K3/34 ,  C09D7/61 ,  C09D125/14

Abstract: The present invention relates to aqueous polymer latexes of film-forming copolymer particles obtainable by aqueous emulsion polymerisation of monoethylenically monomers M, which mainly comprise non-ionic monomers of the group consisting of alkyl(meth)acrylates, cycloalkyl(meth)acrylates and monovinylaromatic hydrocarbon monomers and which additionally comprise 0.01 to 1% by weight, based on the total weight of monomers M, of at least one monoethylenically unsaturated monomer M2 having a hydrolysable silane group; and 0.1 to 2% by weight, based on the total weight of monomers M, of at least one monoethylenically unsaturated monomer M3 having an acidic phosphate group, or a salt thereof and where the copolymer particles in the polymer latex have volume median particle diameter of at least 250 nm, as determined by dynamic light scattering according to the ISO 13321:1996 standard. The polymer latexes are particularly suitable as binders in coating compositions having high pigment volume concentration (PVC) of preferably above 60% and provide good wet scrub resistance and opacity to coatings obtained therefrom. The present invention also relates to a process for producing such polymer latexes, to waterborne coating compositions containing these latexes and to the use of said polymer latexes for improving the wet scrub resistance and the opacity of coating compositions having a pigment volume concentration (PVC) of preferably above 60%.

公开(公告)号：US20210269653A1

公开(公告)日：2021-09-02

申请号：US17256431

申请日：2019-06-19

Applicant: BASF SE

Inventor： Martin Robert SCHEUBLE ,  Ivan CABRERA ,  Immanuel WILLERICH ,  Crispin AMIRI NAINI ,  Nicolas TISSIER ,  Joerg Alexander DIMMER ,  Tanja ROST

IPC: C09D5/02 ,  C09D7/61 ,  C08F212/08 ,  C08F220/06 ,  C08F220/18 ,  C08F230/08 ,  C08F2/22 ,  C08K3/013 ,  C08K3/34 ,  C08L33/08

Abstract: The present invention relates to an aqueous emulsion paint comprising a) 5% to 50% by weight of an aqueous polymer dispersion having a solids content in the range from 40% to 60% by weight, obtainable by the free-radical aqueous emulsion polymerization of a monomer mixture comprising ethylhexyl acrylate, butyl acrylate and one or more vinylaromatics, preferably styrene, b) 0.1% to 5% by weight of alkali metal alkylsiliconate and/or water-soluble silicate, c) 20% to 70% by weight of inorganic fillers, d) 0% to 30% by weight of at least one pigment, e) 0.1% to 10% by weight of customary auxiliaries, and f) water, based in each case on the total amount of the emulsion paint, the pH of the emulsion paint having a value in the range from 10 to 12, and also relates to the aqueous polymer dispersions, to a process for the preparation thereof and to the use thereof as organic binders in emulsion paints having a high pH.

公开(公告)号：US20190241762A1

公开(公告)日：2019-08-08

申请号：US16339236

申请日：2017-10-06

Applicant: BASF SE

Inventor： Immanuel WILLERICH ,  Volodymyr BOYKO ,  Bernd RECK ,  Jules MIKHAEL ,  Joost LESWIN ,  Mary THOMSON ,  Markus RUECKEL ,  Martin Robert SCHEUBLE

IPC: C09D151/00 ,  C09D5/02

CPC classification number: C09D151/003 ,  C08F2/001 ,  C08F2/22 ,  C08F2/26 ,  C08F2/44 ,  C08F265/04 ,  C09D5/022 ,  C09D5/024 ,  C09D5/027 ,  C09D5/028 ,  C08F2220/1825 ,  C08F212/08 ,  C08F220/06 ,  C08F220/14 ,  C08F222/02 ,  C08F220/56 ,  C08F2220/1858 ,  C08L33/02 ,  C08K2003/2241

Abstract: Disclosed herein is a latex paint containing i) a multistage carboxylated polymer latex binder, ii) a titanium dioxide pigment, and iii) a polymeric dispersant PD having a number average molecular weight, as determined by GPC, of at most 5500 Dalton. Also disclosed are methods for preparing the latex paint, and coatings containing the latex paint.

公开(公告)号：US20250059381A1

公开(公告)日：2025-02-20

申请号：US18721237

申请日：2022-12-22

Applicant: BASF SE

Inventor： Immanuel WILLERICH ,  Thomas WOLF ,  Ivan CABRERA ,  Jens Gerald LANGHANKI ,  Arnold LEIDNER ,  Felix LAUTERBACH

IPC: C09D5/02 ,  C08F2/26 ,  C08F220/14 ,  C08F220/18 ,  C09D133/08 ,  C09D133/12

Abstract: The present invention relates to the use of aqueous polymer dispersions of a polymer P obtainable by emulsion polymerization of ethylenically unsaturated monomers M in the presence of at least one anionic emulsifier as binders in a waterborne coating formulation having a pH of at least pH 9.5. The polymer dispersion is an aqueous polymer dispersion of a polymer P obtainable by emulsion polymerization of ethylenically unsaturated monomers M in the presence of at least one anionic emulsifier, where the monomers M comprise or consist of the following monomers M1, M2 and optionally M3 and/or M4 a) 90 to 99.9% by weight, based on the total weight of monomers M, of monomers M1 selected from the group consisting of C1-C20 alkylesters of acrylic acid, C1-C20 alkylesters of methacrylic acid, C5-C20 cycloalkylesters of acrylic acid, C5-C20 cycloalkylesters of methacrylic acid, and monovinylaromatic monomers, where the relative amount of monovinylaromatic monomers does not exceed 15% by weight, based on the total weight of monomers M; b) 0.1 to 5% by weight, based on the total weight of monomers M, of monomers M2 selected from monoethylenically unsaturated monomers bearing at least one carboxyl group; c) 0 to 2% by weight, based on the total weight of monomers M, of one or more monoethylenically unsaturated monomers M3 bearing at least one sulfate or sulfate group; and d) 0 to 5% by weight or less than 0.5% by weight, based on the total weight of monomers M, of one or more ethylenically unsaturated non-ionic monomers M4 different from the monomers M1, M2 and M3; 25 whereby the emulsion polymerization is carried out in the presence of a base in such an amount sufficient to neutralize more than 20 mol-%, in particular at least or more than 25 mol-% and especially at least 30 mol-% of the carboxyl groups of all monomers M2.

公开(公告)号：US20210163779A1

公开(公告)日：2021-06-03

申请号：US16336565

申请日：2017-10-06

Applicant: BASF SE

Inventor： Immanuel WILLERICH ,  Volodymyr BOYKO ,  Bernd RECK ,  Jules MIKHAEL ,  Joost LESWIN ,  Matthias MAIER ,  Tanja ROST ,  Markus RUECKEL

IPC: C09D151/00 ,  C09D5/02

Abstract: The present invention relates to latex paints, which contain a) a multistage carboxylated polymer latex binder obtainable by multistage aqueous emulsion polymerisation of a monomer composition M consisting of at least one non-ionic monomer M1, which is selected from C1-C20-alkyl esters of acrylic acid, C1-C20-alkylesters of methacrylic acid, and vinyl aromatic monomers; one or more monoethylenically unsaturated monomers M2, which are selected from monoethylenically unsaturated monocarboxylic acids having 3 to 6 carbon atoms and monoethylenically unsaturated dicarboxylic acids having 4 to 6 carbon atoms, and optionally one or more non-ionic monomers M3, which are different from monomers M1; where in at least one stage, the relative amount of monomers M2 in added in this stage is at least 6% by weight, based on the total amount of monomers added in said stage, the total amount of monomers M2 being from 0.05 to 5% by weight, based on the total amount of the monomer composition M; b) a titanium dioxide pigment; c) a polymeric dispersant PD which is selected from homo and copolymers of monomers M4, which are selected from monoethylenically unsaturated monocarboxylic acids having 3 to 6 carbon atoms and monoethylenically unsaturated dicarboxylic acids having 4 to 6 carbon atoms, where the monomers M4 make up at least 85% of the monomers forming the polymeric dispersant; and d) an associative thickener polymer.

公开(公告)号：US20190144585A1

公开(公告)日：2019-05-16

申请号：US16098010

申请日：2017-05-03

Applicant: BASF SE

Inventor： Tanja ROST ,  Roelof BALK ,  Immanuel WILLERICH ,  Sebastian ENCK ,  Joost LESWIN ,  Wolfgang GASCHLER ,  Martin Robert SCHEUBLE

IPC: C08F220/18 ,  C08F220/06 ,  C08F212/08 ,  C08F2/22 ,  C08K3/22 ,  C09D133/02 ,  C09D133/12

Abstract: Disclosed herein is a process for preparing an aqueous polymer latex by polymerising a monomer composition M by a radical emulsion polymerisation, where at least 95% of the monomer composition M is metered during a period P to the polymerisation reaction under polymerisation conditions, such that during at least one period P(n) within the period P, the relative amount of monomers M2, which are metered to the polymerisation reaction during the periods P(n), to the total amount of the monomer composition M, which is metered to the polymerisation reaction during said period P(n), is at least 1% by weight higher than the relative amount of monomers M2, which are metered to the polymerisation reaction outside of each of said periods P(n), to the total amount of the monomer composition M, which is metered to the polymerisation reaction outside of each of said periods P(n).