申请人:DAINIPPON INK AND CHEMICALS, INC.
公开号:EP1403299A1
公开(公告)日:2004-03-31
An isocyanate group-containing hot melt urethane prepolymer, a morpholine ether-based crosslinking catalyst, and at least one sulfur atom-containing organic acid selected from the group consisting of sulfonic acids and sulfinic acids are used as essential components. The urethane prepolymer is a compound having an isocyanate group capable of reacting with moisture in the air or a substrate to be coated to form a crosslinked structure in the molecule. The morpholine ether-based crosslinking catalyst contributes to the moisture-crosslinking reactivity at room temperature. The sulfur atom-containing organic acid contributes to an improvement in thermal stability during melting.
一种含异氰酸酯基的热熔聚氨酯预聚物、一种吗啉醚基交联催化剂和至少一种从磺酸和亚硫酸组成的组中选出的含硫原子的有机酸被用作基本成分。聚氨酯预聚物是一种具有异氰酸酯基团的化合物,能与空气中的水分或待涂覆的基材发生反应,在分子中形成交联结构。以吗啉醚为基础的交联催化剂有助于在室温下进行湿气交联反应。含硫原子的有机酸有助于提高熔化过程中的热稳定性。