Coating composition comprising autoxidisable component
    1.
    发明授权
    Coating composition comprising autoxidisable component 有权
    包含可自动氧化成分的涂料组合物

    公开(公告)号:US08945681B2

    公开(公告)日:2015-02-03

    申请号:US13864062

    申请日:2013-04-16

    摘要: There is described (pref. non-adhesive) coating compositions (which may be either water or solvent borne) that comprise an autoxidisable vinyl polymer, the autoxidisable polymer having a vinyl polymer backbone 25% to 75% by wt of the autoxidisable polymer; fatty acid residue 25% to 75% by wt of the autoxidisable polymer; Tg from −60° C. to +20° C., Mw from 3500 to 50000 g/mol; and polydispersity from 2 to 10; the autoxidisable polymer obtained by a process of: (A) polymerising ethylenically unsaturated vinyl monomers comprising: at least one epoxy functional vinyl monomer 15% to 100% by wt total monomers in (A); 0 to 85% of at least one other ethylenically unsaturated vinyl monomer, (preferably other than styrenic monomers) by wt total monomers in (A); (B) reacting the epoxy functional polymer from (A) with fatty acids having an average iodine value from 30 to 250 g I2/100 g fatty acid; where composition has: a) a opt. co-solvent content ≦40% by wt of the composition; b) a solids content either ≧30% (aqueous) ≧60% (solvent based) by wt of the composition, the composition as a coating film having a telegraphing value of less than 10 gloss units (difference between an initial smooth gloss minus an initial rough gloss of the film).

    摘要翻译: 描述了包含可自动氧化的乙烯基聚合物的(优先非粘性)涂料组合物(其可以是水或溶剂载体),所述可自动氧化聚合物具有25重量%至75重量%的可自动氧化聚合物的乙烯基聚合物主链; 脂肪酸残基25%至75%重量的可自动氧化聚合物; Tg为-60℃至+ 20℃,Mw为3500至50000g / mol; 多分散性为2〜10; 通过以下方法获得的可自动氧化聚合物:(A)烯键式不饱和乙烯基单体的聚合,包括:(A)中至少一种15重量%至100重量%的单体的至少一种环氧官能乙烯基单体; 0至85%的(A)中的总单体的至少一种其它烯属不饱和乙烯基单体(优选不同于苯乙烯类单体); (B)使来自(A)的环氧官能聚合物与平均碘值为30-250g I2 / 100g脂肪酸的脂肪酸反应; 其中组合有:a)选择。 共溶剂含量≦̸ 40重量%的组合物; b)以组合物重量计≥30%(水性)≥30%(水性)≥60%(溶剂基)的固体含量,具有小于10个光泽单位的透印值的涂膜的组成(初始平滑光泽度减去 初始粗糙的光泽度)。