Polymer dispersants
    3.
    发明授权

    公开(公告)号:US09670350B2

    公开(公告)日:2017-06-06

    申请号:US14896581

    申请日:2014-06-06

    Applicant: BASF SE

    Abstract: The present invention relates to novel polymer dispersants in the form of comb polymers P and to a liquid composition containing solid fine particles, such as organic or inorganic pigments and fillers, and the polymer dispersants. The comb polymer P having at least 0.5 mol-%, e.g. 0.5 to 90 mol-%, based on the total amount of repeating units in the comb polymer, of repeating units A, selected from repeating units of the formulae la and lb: wherein R1 is selected from the group consisting of hydrogen, —S(═O)2Ra, C1-C20 alkyl, C3-C10 cycloalkyl, aryl, heteroaryl, aryl-C1-C4-alkyl and heteroaryl-C1-C4-alkyl; and X indicates a polymer group of the following formula X wherein Z indicates a polymer segment or a monovalent alkyl or alkenyl segment having from 10 to 100 carbon atoms; R1 is as defined above; k is 0, 1, 2, 3 or 4; n is 0, 1 or 2; A is a chemical bond or a divalent moiety selected from the group consisting of C1-C6 alkylene, —O—(C2-C6 alkylene) or —C(═O)—O—(C2-C6 alkylene), where the C2-C6 alkylene part is attached to Q; Q is a divalent moiety selected from the group consisting of —O—, —NH— and —S—; R2 is independently selected from the group consisting of —OH, —COOH, —COOCH3, —NH2, —NH(C1-C6 alkyl), —N(C1-C6 alkyl)2, —NO2, —S(═O)2Ra, C1-C20 alkyl, C1-C4 alkoxy, halogen, aryloxy, aryl, heteroaryl.

    Dispersant composition
    4.
    发明授权

    公开(公告)号:US11492501B2

    公开(公告)日:2022-11-08

    申请号:US16070641

    申请日:2017-01-11

    Applicant: BASF SE

    Abstract: The present invention relates to a dispersant composition comprising: a) at least one oligomeric acid A, which has i) at least one acidic group selected from COOH and PO3H2, and ii) at least one polyoxyalkylene-ether radical of the formula (I): R—(O-A)xO-G-, where A is an C2-C4-alkan-1,2-diyl radical; X is an integer having a number average value in the range from 2 to 20; and R is hydrocarbon radical having from 1 to 30 carbon atoms; G is a chemical bond or a carbonyl group; and b) at least one polyamine B, which is selected from the group consisting of polyvinylamines, poly-C2-C3-alkyleneimines, modified poly-C2-C3-alkyleneimines, melamine compounds, modified melamine compounds, poly-(C2-C4-alkyleneether) amines, polyetheramine polyols, and modified polyetheramine polyols. The invention also relates to aqueous pigment compositions containing a dispersant composition as defined herein, a pigment component, selected from the group consisting of pigments and mixtures of at least one pigment and at least one filler, and an aqueous diluent.

    Polymer with branched structure
    5.
    发明授权

    公开(公告)号:US11479688B2

    公开(公告)日:2022-10-25

    申请号:US16611265

    申请日:2018-03-28

    Applicant: BASF SE

    Abstract: The presently claimed invention relates to polymer with branched structure, in particular, hydrophobically modified alkali-soluble (or alkali-swellable) emulsion (HASE) copolymers which are effective thickeners at high shear rates and at the same time offer a Newtonian rheology profile and their use in aqueous compositions, particularly in aqueous coating formulations as well as a method for preparing hydrophobically modified alkali-soluble (or alkali-swellable) emulsion copolymers.

    Latex paint containing titanium dioxide pigment

    公开(公告)号:US11118083B2

    公开(公告)日:2021-09-14

    申请号:US16336565

    申请日:2017-10-06

    Applicant: BASF SE

    Abstract: The present invention relates to latex paints containing a) a multistage carboxylated polymer latex binder obtainable by multistage aqueous emulsion polymerisation of at least one non-ionic monomer 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 where in at least one stage, monomers M2 added in this stage is at least 6% by weight; b) a titanium dioxide pigment; c) a polymeric dispersant 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 make up at least 85% of the monomers forming the polymeric dispersant; and d) a thickener polymer.

    Polyalkylene imine based polymers having polyester groups

    公开(公告)号:US10808078B2

    公开(公告)日:2020-10-20

    申请号:US15998745

    申请日:2017-02-08

    Applicant: BASF SE

    Abstract: The present invention relates to polyalkylene imine based polymers, which have aliphatic polyester groups attached to the polyalkylenimine backbone via an carboxamide group. The novel polymers are particularly useful as dispersants for pigments, in particular as dispersants for pigments in non-aqueous compositions. The polyalkylene imine based polymers are characterized by having a) a polyalkylene imine backbone; b) at least one aromatic moiety P.1, which is bound to a nitrogen atom of the polyalkylene imine backbone via an carboxamide or carboximide group; and c) at least one aliphatic polyester moiety P.2, which is bound to a nitrogen atom of the polyalkylene imine backbone via an carboxamide group.

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