LATEX PAINT CONTAINING TITANIUM DIOXIDE PIGMENT

    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

    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.

    COMPOSITION FOR INKS AND COATINGS WITH HIGH LAMINATION BOND STRENGTH
    3.
    发明申请
    COMPOSITION FOR INKS AND COATINGS WITH HIGH LAMINATION BOND STRENGTH 审中-公开
    具有高层压强度的墨水和涂料组合物

    公开(公告)号:US20140135419A1

    公开(公告)日:2014-05-15

    申请号:US14071797

    申请日:2013-11-05

    Applicant: BASF SE

    Abstract: A composition obtained by the following steps (i) furnishing a composition (C) comprising an emulsion polymer (a) and thereafter (ii) adding to said composition (C) a composition comprising a water-soluble polymer (b) comprising ether groups, wherein said water-soluble polymer (b) does not comprise carboxylate groups and, said water-soluble polymer (b) has a solubility in water of at least 50 g/l. A method of making a such a composition and the use of such for water based coatings or inks is described.A composition comprising (i) an emulsion polymer (a) comprising carboxylate groups, and (ii) a water-soluble random or block copolymer of ethylene oxide and propylene oxide having an ethylene oxide content of at least 45 weight-% with respect to the amount of the copolymer of ethylene oxide and propylene oxide and having a weight average molecular weight of from 300 to 4000 g/mol is also disclosed.

    Abstract translation: 通过以下步骤(i)获得的组合物提供包含乳液聚合物(a)的组合物(C),然后(ii)向所述组合物(C)中加入包含包含醚基团的水溶性聚合物(b)的组合物, 其中所述水溶性聚合物(b)不包含羧酸酯基团,并且所述水溶性聚合物(b)在水中的溶解度至少为50g / l。 描述了制备这种组合物的方法及其用于水性涂料或油墨的用途。 一种组合物,其包含(i)包含羧酸酯基的乳液聚合物(a),和(ii)环氧乙烷和环氧丙烷的水溶性无规或嵌段共聚物,其环氧乙烷含量相对于所述环氧乙烷含量为至少45重量% 还公开了环氧乙烷和环氧丙烷的共聚物的重均分子量为300-4000g / mol的量。

    PROCESS OF PRODUCING POLYMER DISPERSIONS
    4.
    发明公开

    公开(公告)号:US20230383043A1

    公开(公告)日:2023-11-30

    申请号:US18249585

    申请日:2021-11-22

    Applicant: BASF SE

    CPC classification number: C08F287/00 C08F293/005 C08F220/1804 C08F2438/02

    Abstract: Disclosed herein is a process of producing a polymeric dispersion by free radical emulsion polymerization of a monomer composition including ethylenically unsaturated monomers in the presence of a block copolymer. The block copolymer has a first block including at least 80 wt.-% units of alkyl acrylate and a second block including units of an ethylenically unsaturated monomer with sulfonic acid groups. Either the first or the second block is connected with a nitroxyl radical. The polymeric dispersion is obtainable by the disclosed process, and the block copolymer is used in the process. Further disclosed herein is a method of using the block copolymer as an emulsifying agent for free radical emulsion polymerization.

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