Aqueous emulsion coating composition comprising an autoxidisable fatty acid modified polyester
    2.
    发明授权
    Aqueous emulsion coating composition comprising an autoxidisable fatty acid modified polyester 有权
    包含可自动氧化的脂肪酸改性聚酯的水性乳液涂料组合物

    公开(公告)号:US09382446B2

    公开(公告)日:2016-07-05

    申请号:US13870271

    申请日:2013-04-25

    CPC classification number: C09D167/08 Y10T428/24355 Y10T428/264

    Abstract: An aqueous coating composition comprising an autoxidizable fatty acid modified polyester resin having ≧40 wt % of fatty acid residues; a Tg in the range of from −70 to +20° C.; an acid value less than 40 mg KOH/g; a Mw in the range of from 5,000 to 125,000 g/mol; >5 wt % of ring structures; and the composition having a co-solvent content less than 20 wt % by weight of solids; a solids content >38 wt %; and when in the form of the film having a telegraphing value of less than 35 gloss units.

    Abstract translation: 一种水性涂料组合物,其包含具有≥40重量%脂肪酸残基的可自动氧化的脂肪酸改性聚酯树脂; Tg在-70至+ 20℃的范围内; 酸值小于40mg KOH / g; 在5,000至125,000g / mol范围内的Mw; > 5重量%的环结构; 并且所述组合物的共溶剂含量小于20重量%的固体重量; 固含量> 38wt%; 并且当以具有小于35个光泽度单位的通讯值的薄膜的形式时。

    POLYMER, COMPOSITION AND USE
    4.
    发明申请
    POLYMER, COMPOSITION AND USE 审中-公开
    聚合物,组合物和用途

    公开(公告)号:US20150225604A1

    公开(公告)日:2015-08-13

    申请号:US14425438

    申请日:2013-09-25

    Abstract: There is described a solvent assisted dispersion (SAD) process for preparing an aqueous polycondensate (such as a polyester e.g. uralkyd) dispersion substantially free of solvents, comprising the steps of (a) reacting in a non-protic solvent a mixture of (i) one or more polycondensate monomers, oligomers and/or polymers comprising a plurality of isocyanate-reactive groups; wherein the monomers, oligomers and/or polymers comprises at least 2% by weight (components) of a fully, partially or non-neutralized acid group having a pKa less than 3 (ii) at least one multifunctional isocyanate, to form a mixture of a first (e.g. uralkyd) emulsifier resin and the non-protic solvent; (b) optionally, reacting the first emulsifier resin from step (a) with at least one monomer, oligomer and/or polymer different from component (a) (performance polymer) to form a second (e.g. uralkyd) resin; (c) dispersing the first emulsifier resin from step (a) and/or the second performance resin from step (b) in an aqueous medium to form an aqueous (e.g. uralkyd) dispersion. (d) removing substantially all of the non-protic solvent from the dispersion to form a (e.g. uralkyd) dispersion substantially-free of solvent.

    Abstract translation: 描述了一种溶剂辅助分散体(SAD)方法,用于制备基本上不含溶剂的水性缩聚物(例如聚酯,例如uralkyd)分散体,包括以下步骤:(a)在非质子溶剂中使(i) 包含多个异氰酸酯反应性基团的一种或多种缩聚单体,低聚物和/或聚合物; 其中所述单体,低聚物和/或聚合物包含至少2重量%(组分)的具有pKa小于3的完全,部分或未中和的酸基团(ii)至少一种多官能异氰酸酯,以形成 第一(例如uralkyd)乳化剂树脂和非质子溶剂; (b)任选地使来自步骤(a)的第一乳化剂树脂与至少一种不同于组分(a)(性能聚合物)的单体,低聚物和/或聚合物反应以形成第二(例如uralkyd)树脂; (c)将来自步骤(a)的第一乳化剂树脂和/或来自步骤(b)的第二性能树脂分散在水性介质中以形成水性(例如uralkyd)分散体。 (d)从分散体中基本上除去所有非质子溶剂,以形成基本上不含溶剂的(例如uralkyd)分散体。

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