Heat resistant aqueous polyurethane resin composition for artificial or synthetic leather, method or producing the same and leather-like sheet
申请人:DAI-ICHI KOGYO SEIYAKU CO., LTD.
公开号:EP1595903A1
公开(公告)日:2005-11-16
To provide a polyurethane resin composition capable of substantially suppressing vessel contamination and the frequency of occurrence of defective piece goods, hindered amine stabilizers are introduced into a molecular skeleton of a polyurethane resin by reacting a hindered amine stabilizer having imino groups with a compound having isocyanate groups or by reacting a urethane prepolymer having isocyanate groups with a compound having free isocyanate groups which is obtained by a reaction of a hindered amine stabilizer having imino groups with a polyisocyanate compound.
为了提供一种聚氨酯树脂组合物,该组合物能够大大抑制容器污染和次品出现的频率,通过使具有亚氨基的受阻胺稳定剂与具有异氰酸酯基团的化合物反应,或使具有异氰酸酯基团的聚氨酯预聚物与具有游离异氰酸酯基团的化合物反应,将受阻胺稳定剂引入聚氨酯树脂的分子骨架中,游离异氰酸酯基团是由具有亚氨基的受阻胺稳定剂与多异氰酸酯化合物反应得到的。