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：US20230002634A1

公开(公告)日：2023-01-05

申请号：US17783669

申请日：2020-12-14

Applicant: BASF SE

Inventor： Friederike FLEISCHHAKER ,  Bastiaan LOHMEIJER ,  Wolfgang GASCHLER ,  Joost LESWIN ,  Crispin AMIRI NAINI ,  Andrea MISSKE ,  Christoph FLECKENSTEIN ,  Tobias STEINBACH ,  Jochen GATTERMAYER ,  Sabine EICHHORN

IPC: C09D133/08

Abstract: The presently claimed invention relates to use of an aqueous polymer latex as a binder or co-binder in a waterborne coating composition, wherein the aqueous polymer latex is obtained by polymerizing a monomer composition M, comprising at least one tert-butyl acrylate and/or tertbutyl methacrylate monomer, by radical emulsion polymerization.

公开(公告)号：US20230348633A1

公开(公告)日：2023-11-02

申请号：US17629816

申请日：2020-07-24

Applicant: BASF SE

Inventor： Xavier MOLLAT DU JOURDIN ,  Joost LESWIN ,  Michaela REINSCH ,  Nicole SPECHT ,  Janine EINHORN-RECH ,  Joerg Alexander DIMMER ,  Rainer PACHE ,  Jochen GATTERMAYER ,  Hans-Juergen DENU

IPC: C08F2/22 ,  C08F2/00 ,  C08F2/38 ,  C08F220/18 ,  C08F220/06 ,  C08F220/14 ,  C08K5/37 ,  C08K5/14 ,  C09D133/12

CPC classification number: C08F2/22 ,  C08F2/001 ,  C08F2/38 ,  C08F220/1804 ,  C08F220/06 ,  C08F220/14 ,  C08K5/37 ,  C08K5/14 ,  C09D133/12 ,  C08F2800/20

Abstract: The present application relates to a process for producing an aqueous polymer dispersion of polymerized ethylenically unsaturated monomers M by a multistage aqueous radical emulsion polymerization comprising a first aqueous radical emulsion polymerization step of a first monomer composition M.a and subsequently a further aqueous radical emulsion polymerization step of a second monomer composition M.b. The present application also relates to aqueous polymer dispersions obtainable by such a process and to the use thereof, in particular as a binder in coating compositions. The process comprises a multistage aqueous radical emulsion polymerization of ethylenically unsaturated monomers M, comprising a) at least one non-ionic, monoethylenically unsaturated monomer M1 having a solubility in deionized water of at most 60 g/L at 25° C. and 1 bar, b) at least one monoethylenically unsaturated monomer M2 selected from monomers having an acid group and their salts, and c) optionally one or more ethylenically unsaturated monomers M3, which are different from the monomers M1 and M2, where the process comprises i) a first step of an aqueous radical emulsion polymerization of a first monomer composition M.a consisting of monomers M1, M2 and optionally M3, to obtain a first aqueous polymer dispersion, where the monomer composition M.a comprises at most 2% by weight, in particular at most 1.5% by weight and especially at most 1.5% by weight or at most 1.0% by weight, based on the total weight of the monomers of the monomer composition M.a, of monomers M2, and subsequently ii) at least one further aqueous radical emulsion polymerization step of a second monomer composition M.b consisting of monomers M1, M2 and optionally M3, where the second step is performed in the aqueous polymer dispersion of the first step and in the presence of a chain transfer agent T, where the monomer composition M.b comprises 2 to 20% by weight, in particular from 5 to 18% by weight and especially from 8 to 16% by weight, based on the total weight of the monomers of the monomer composition M.b, of at least one monomer M2, where the weight ratio of the total weight of monomers of monomer composition M.a to the total weight of monomers of monomer composition M.b is in the range from 10:90 to 90:10, in particular in the range from 50:50 to 87:13, especially in the range from 60:40 to 85:15.

公开(公告)号：US20200347238A1

公开(公告)日：2020-11-05

申请号：US16964384

申请日：2019-01-22

Applicant: BASF SE

Inventor： Xavier MOLLAT DU JOURDIN ,  Jochen GATTERMAYER ,  Joost LESWIN ,  Ivan CABRERA ,  Anna Maria MUELLER-CRISTADORO ,  Benedikt CRONE

IPC: C09D5/02 ,  C09D133/06 ,  C09D7/65

Abstract: The present invention relates to aqueous binder compositions comprising an aqueous polymer latex of a film forming carboxylated polymer and a branched polyetheramine polyol dissolved in the aqueous phase of the aqueous polymer latex, wherein essentially all of the amino groups in the branched polyetheramine polyol are tertiary amine groups. The present invention also relates to water-borne coating compositions containing such an aqueous binder composition.