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    • 10. 发明授权
    • Use of an aqueous binding agent devoid of formaldehyde for substrates
    • 使用无甲醛的水性结合剂作底物
    • US07851542B2
    • 2010-12-14
    • US10571699
    • 2004-09-09
    • Kathrin MichlMatthias Gerst
    • Kathrin MichlMatthias Gerst
    • C08L33/00B05D7/00
    • D04H1/645C03C25/26C03C25/30C08F222/02D04H1/4209D04H1/4218D04H1/587D04H1/64D06M15/263E04F15/105
    • The present invention relates to formaldehyde-free aqueous binders for substrates, having a broad molecular weight distribution and comprising (A) from 0 to 100% by weight of an ethylenically unsaturated acid anhydride or ethylenically unsaturated dicarboxylic acid whose carboxylic acid groups can form an anhydride group, or mixtures thereof, (B) from 100 to 0% by weight of an ethylenically unsaturated compound, (C) at least one polyfunctional crosslinker or mixtures thereof, the polymers of A) and B) obtained by free-radical addition polymerization, when classified in a coordinate system by way of their average molecular weight Mw and their polydispersity, being situated in the area above a straight line which is defined by the linear equation y=1.25x+20 000 and has been shifted in y direction parallelwise by at least +3 000, the x axis denoting the weight-average molecular weight and the y axis the polydispersity times 10 000.
    • 本发明涉及用于基材的无甲醛水性粘合剂,其具有宽分子量分布并且包含(A)0至100重量%的烯属不饱和酸酐或烯属不饱和二羧酸,其羧酸基团可以形成酸酐 基团或其混合物,(B)100至0重量%的烯属不饱和化合物,(C)至少一种多官能交联剂或其混合物,通过自由基加成聚合得到的A)和B)的聚合物, 当通过其平均分子量Mw和它们的多分散性分类在坐标系中时,位于由线性方程y = 1.25×+ 20 000定义的直线上方的区域中,并且已经沿y方向平行移位 至少+3000,x轴表示重均分子量,y轴多分散时间为10 000。