公开(公告)号：US20210163779A1

公开(公告)日：2021-06-03

申请号：US16336565

申请日：2017-10-06

申请人： BASF SE

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

IPC分类号： C09D151/00 ,  C09D5/02

摘要： 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：US20190241762A1

公开(公告)日：2019-08-08

申请号：US16339236

申请日：2017-10-06

申请人： BASF SE

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

IPC分类号： C09D151/00 ,  C09D5/02

CPC分类号： 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

摘要： 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.