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    • 9. 发明申请
    • Two Packages Type Thermosetting Resin Composition, Film Forming Method and Coated Article
    • 两种类型的热固性树脂组合物,成膜方法和涂层制品
    • US20070298178A1
    • 2007-12-27
    • US10592385
    • 2005-03-11
    • Hisaki TanabeHideaki Tsujioka
    • Hisaki TanabeHideaki Tsujioka
    • C08L63/00B05D1/36B05D7/24C08G59/32C08G59/40
    • C08F220/08B05D1/34B05D3/0254B05D5/065B05D7/14B05D7/542B05D2202/15C08F220/32C08G59/3209C08G59/4246C09D163/00
    • The great decrease of the curing time (in particular, halving) of acid/epoxy curing system paint and the further improvement of other performances (in particular, film performance). A two packages type thermosetting resin composition comprising (a) an acid anhydride group-containing acryl resin having an acid anhydride group of 0.08 to 5.3 mmol/g (solid content) and a number average molecular weight of 500 to 8000 that is obtained by copolymerizing an acid anhydride group-containing ethylenically unsaturated monomer with an ethylenically unsaturated monomer having no acid anhydride group, (b) a carboxylic group-containing polyester resin having a carboxylic group of 0.8 to 6.3 mmol/g (solid content) and a number average molecular weight of 400 to 3500 and a ratio of weight average molecular weight to number average molecular weight of 1.8 or less that is obtained by reacting an acid anhydride group-containing ethylenically unsaturated monomer with polyester polyol having 3 or more of hydroxyl groups, and (c) an acryl resin with hydroxyl groups and epoxy groups having a hydroxyl group of 0.08 to 5.4 mmol/g (solid content), an epoxy group of 1.2 to 10.0 mmol/g (solid content) and a number average molecular weight of 200 to 10000 that is obtained by copolymerizing a hydroxyl group-containing ethylenically unsaturated monomer and an epoxy group-containing ethylenically unsaturated monomer with an ethylenically unsaturated monomer not having a hydroxyl group and an epoxy group.
    • 酸/环氧树脂固化体系涂料的固化时间(特别是减半)大大降低,其他性能(特别是膜性能)进一步提高。 一种双包装型热固性树脂组合物,其包含(a)通过共聚合得到的酸酐基为0.08〜5.3mmol / g(固体成分)和数均分子量为500〜8000的含酸酐基的丙烯酸树脂 含有酸酐基团的烯属不饱和单体与不含酸酐基团的烯键式不饱和单体,(b)羧基含量为0.8〜6.3mmol / g(固体成分)和数均分子量 重量为400〜3500,通过使含酸酐基的烯属不饱和单体与具有3个以上羟基的聚酯多元醇反应得到的重均分子量与数均分子量的比值为1.8以下,(c )具有羟基的丙烯酸树脂和羟基为0.08〜5.4mmol / g(固体成分)的环氧基,1.2〜10.0mmol / g的环氧基(soli d含量)和通过使含羟基的烯属不饱和单体和含环氧基的烯属不饱和单体与不具有羟基和环氧基的烯键式不饱和单体共聚得到的数均分子量为200〜10000。