DISPERSANT COMPOSITION
    3.
    发明公开

    公开(公告)号:EP3405526A1

    公开(公告)日:2018-11-28

    申请号:EP17700244.1

    申请日:2017-01-11

    申请人: BASF SE

    IPC分类号: C09B67/46 B01F17/00

    摘要: 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.

    MELAMINE-POLYETHERS AS DISPERSANTS IN NON-AQUEOUS, LIQUID PIGMENT COMPOSITIONS

    公开(公告)号:EP3405459A1

    公开(公告)日:2018-11-28

    申请号:EP17700696.2

    申请日:2017-01-20

    申请人: BASF SE

    摘要: The present invention relates to novel mono- or polynuclear melamine compounds and their use as dispersants for pigments and fillers in coating compositions, in particular in solvent-borne coating compositions. The mono- or polynuclear melamine compounds of the invention have at least one 2,4,6-triamino-1,3,5-triazine ring, wherein at least one amino groups of at least one of the 2,4,6-triamino-1,3,5-triazine rings of the mono- or polynuclear melamine compounds is of the formula A: €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ NR 1 R 2 €ƒ€ƒ€ƒ€ƒ€ƒ(A) where R 1 is H, CH(R 3 )OR 4 or R2, R 2 is CH(R 3 )O(A-O) x -R 5 , where R 3 is H, C 1 -C 10 -alkyl or aryl; R 4 is H, C 1 -C 4 -alkyl or C 1 -C 4 -alkoxy-C 1 -C 4 -alkyl; R 5 is a hydrocarbon radical having from 1 to 40 carbon atoms; x is an integer from 2 to 500, having on average a value in the range from 2.5 to 400; A is an C 2 -C 4 -alkan-1,2-diyl radical.