HEAT RESISTANT AQUEOUS POLYURETHANE RESIN COMPOSITION FOR ARTIFICIAL OR SYNTHETIC LEATHER, METHOD OF PRODUCING THE SAME AND LEATHER-LIKE SHEET

摘要

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.