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    • 4. 发明申请
    • Method for producing coatings from coating materials that can be cured by the action of heat or actinic radiation
    • 用于通过热或光化辐射的作用固化的涂层材料制备涂层的方法
    • US20040157003A1
    • 2004-08-12
    • US10479033
    • 2003-11-26
    • Hubert BaumgartKarl-Heinz JoostUwe Meisenburg
    • C08F002/48B05D003/00G21H005/00C08J007/18
    • C09D175/16B05D3/0486B05D3/067B05D7/52B05D7/56C08G18/6254C08G18/8175C09D133/066C08L2666/28
    • A process for producing coatings, in which (I) coating materials are applied to substrates or to uncured, part-cured and/or fully cured coating films present on said substrates, and (II) the resulting films of the coating materials are cured thermally and with actinic radiation, alone or together with the coating films, which involves (1) conducting the actinic radiation cure under an oxygen-depleted atmosphere and (2) the coating materials comprising (A) meth(acrylate) copolymers which have an OH number of from 100 to 220 mg KOH/G, a glass transition temperature of null35 to null60null C., a number-average molecular weight of from 1 000 to 10 000 daltons and a mass-average molecular weight of from 2 000 to 40 000 daltons and which contain in copolymerized form an amount of hydroxyl-containing monomers (a) that corresponds to the OH number, of which (a1) from 20 to 90% by weight are based on (a), 4-hydroxybutyl (meth)acrylate and/or 2-alkylpropane-1,3-diol mono-(meth)acrylate, and (a2) from 10 to 80% by weight are based on (a), other hydroxyl-containing olefinically unsaturated monomers; and (B) from 0.2 to 8% by weight of photoinitiators.
    • 一种制备涂层的方法,其中(I)涂层材料施加到基材上或者存在于所述基材上的未固化,部分固化和/或完全固化的涂膜,和(II)所得涂层材料的膜被热固化 和光化辐射,单独或与涂膜一起,其包括(1)在贫氧气氛下进行光化辐射固化和(2)包含(A)具有OH数的(A)甲基丙烯酸酯共聚物的涂料 100至220mg KOH / G,玻璃化转变温度为-35至+ 60℃,数均分子量为1000至10,000道尔顿,质均分子量为2 000至 40,000道尔顿,其以共聚形式含有相应于OH值的含羟基单体(a)的量,其中(a1)为20至90重量%,基于(a),4-羟基丁基(甲基) )丙烯酸酯和/或2-烷基丙烷-1,3-二醇单(甲基)丙烯酸酯,和(a2)10 至80重量%基于(a),其它含羟基的烯属不饱和单体; 和(B)0.2至8重量%的光引发剂。