申请人:DAINIPPON INK AND CHEMICALS, INC.
公开号:EP1342737A1
公开(公告)日:2003-09-10
Acrylate group-containing oligomers and polymers that produce hard, tack-free and crosslinked products in the presence of air under UV light free from added photoinitiator, obtainable by reacting monomeric, oligomeric or polymeric β-ketoesters and β-diketones with monomeric, oligomeric or polymeric acrylic acid esters, wherein
a) the acrylic acid esters that are used are at least difunctional
b) the reaction is carried out in the presence of 0.3-5.0 wt.% of catalyst
c) the reaction temperature is 60°-140°C
d) the reaction temperature is maintained until the viscosity of the acrylate group-containing oligomers and polymers that are formed is constant
e) the ratio of acrylic acid groups to β-dicarbonyl groups is 2.5:1 to 20:1.
The acrylate group-containing oligomers and polymers are suitable for producing UV-hardenable coatings, printing inks, adhesives, sheets and moulding compositions.
含丙烯酸酯基团的低聚物和聚合物,可通过使单体、低聚或聚合的 β-酮酯和β-二酮与单体、低聚或聚合的丙烯酸酯反应,在空气存在下,在不添加光引发剂的紫外光下生成坚硬、无粘性和交联的产品,其中
a) 所使用的丙烯酸酯至少具有双官能度
b) 反应在 0.3-5.0 重量百分比的催化剂存在下进行
c) 反应温度为 60°-140°C
d) 反应温度保持恒定,直至形成的含丙烯酸酯基团的低聚物和聚合物的粘度不变
e) 丙烯酸基团与 β-二羰基基团的比例为 2.5:1 至 20:1。
含丙烯酸酯基团的低聚物和聚合物适用于生产紫外线硬化涂料、印刷油墨、粘合剂、板材和模塑组合物。