Carboxy-functional polyether-based reaction products and aqueous base paints containing the reaction products

    公开(公告)号:US10723910B2

    公开(公告)日:2020-07-28

    申请号:US15781280

    申请日:2016-12-07

    Abstract: The present invention relates to a pigmented aqueous basecoat material including a polyether-based reaction product which is preparable by reaction of (a) at least one carboxy-functional component which is preparable by esterification reaction of at least one dihydroxycarboxylic acid (a1) with at least one dicarboxylic acid (a2) and/or the anhydride of a dicarboxylic acid (a2), the components (a1) and (a2) being used in a molar ratio of 0.5/3.0 to 1.7/1.8, with (b) at least one polyether of a general structural formula (I) in which R is a C3 to C6 alkylene radical and n is selected accordingly such that the polyether (b) possesses a number-average molecular weight of 500 to 5000 g/mol, the components (a) and (b) being used in the reaction in a molar ratio of 0.7/2.3 to 1.6/1.7, and the resulting reaction product possessing an acid number of 10 to 50 mg KOH/g.

    Aqueous coating composition and production of multicoat paint systems using said coating composition

    公开(公告)号:US10344181B2

    公开(公告)日:2019-07-09

    申请号:US15104912

    申请日:2014-11-18

    Abstract: The present invention relates to an aqueous coating composition comprising at least one aqueous dispersion comprising at least one copolymer (CP), said copolymer (CP) being preparable by (i) initially charging an aqueous dispersion of at least one polyurethane, and then (ii) polymerizing a mixture of olefinically unsaturated monomers in the presence of the polyurethane from (i), in which (a) a water-soluble initiator is used, (b) the olefinically unsaturated monomers are metered in such that a concentration of 6.0% by weight, based on the total amount of olefinically unsaturated monomers used for polymerization, in the reaction solution is not exceeded over the entire reaction time, and (c) the mixture of the olefinically unsaturated monomers comprises at least one polyolefinically unsaturated monomer and at least one linear hydroxy-functional reaction product (R) having an acid number less than 20 mg KOH/g, the preparation of which involves using at least one compound (v) containing two functional groups (v.a) and an aliphatic or araliphatic hydrocarbyl radical (v.b) which is arranged between the functional groups and has 12 to 70 carbon atoms. The present invention also relates to a method for producing a multicoat paint system using the coating composition, and to the multicoat coating thus produced.

    Polyurethane Coating Material Composition, Multi-stage Coating Methods
    44.
    发明申请
    Polyurethane Coating Material Composition, Multi-stage Coating Methods 有权
    聚氨酯涂料组合物,多级涂料方法

    公开(公告)号:US20150210886A1

    公开(公告)日:2015-07-30

    申请号:US14416493

    申请日:2013-05-29

    Abstract: Described are nonaqueous coating material compositions comprising (A) at least one polyhydroxyl group-containing compound, (B) at least one polyisocyanate group-containing compound having free or blocked isocyanate groups, (D) at least one catalyst (D) based on a zinc-amidine complex which is preparable by reacting one or more zinc(II) biscarboxylates with an amidine of the formula (I) or with a mixture of two or more amidines of the formula (I) and (S) at least one monomeric aromatic optionally substituted carboxylic acid (S) whose carboxyl group is in conjugation with a π-electron system, wherein the component (B) comprises at least one structural unit —NR—(X—SiR″x(OR′)3-x) (II), and/or at least one structural unit —N(X—SiR″x(OR′)3-x)n(X′—SiR″y(OR′)3-y)m (III). Also described are multistage coating methods, and the use of the coating material compositions.

    Abstract translation: 描述了包含(A)至少一种含多羟基的化合物,(B)至少一种含有游离或封闭的异氰酸酯基团的含多异氰酸酯基团的化合物的非水性涂料组合物,(D)至少一种基于 锌 - 脒络合物,其可通过使一种或多种双(羧酸锌)(II)与式(I)的脒反应或与两种或更多种式(I)和(S)的脒基的混合物反应制备,至少一种单体芳族 其任意取代的羧酸(S),其羧基与电子体系共轭,其中组分(B)包含至少一个结构单元-NR-(X-SiR“x(OR')3-x) (II),和/或至少一个结构单元-N(X-SiR“x(OR')3-x)n(X'-SiR”y(OR')3-y)m(III)。 还描述了多层涂布方法以及涂料组合物的用途。

    Dimer fatty acid-containing reaction product and coating composition comprising the reaction product

    公开(公告)号:US11053351B2

    公开(公告)日:2021-07-06

    申请号:US16152053

    申请日:2018-10-04

    Abstract: The present invention relates to a reaction product preparable by reacting (a) dimer fatty acids with (b) at least one compound (b) of the general structural formula (I) where R is a C3 to C6 alkylene radical and n correspondingly is selected such that the compound (b) possesses a number-average molecular weight of 120 to 445 g/mol, components (a) and (b) are used in a molar ratio of 0.7/2.3 to 1.6/1.7, and the resulting reaction product possesses a number-average molecular weight of 600 to 4000 g/mol and an acid number of less than 10 mg KOH/g. The invention further relates to a pigmented aqueous basecoat material which comprises this reaction product, and to the use of the reaction product in pigmented aqueous basecoat materials for improving adhesion. The present invention further relates to a method for producing multicoat paint systems, and also to the multicoat paint systems producible by means of said method.

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