POLYURETHANE BINDER COMPOSITION WITH PRO-ENVIROMENTAL PROPERTY AND POLYURETHANE BINDER CHIP PREPARED BY THE SAME AND POLYURETHANE PAVING MATERIAL PREPARED BY THE SAME

摘要

An environment-friendly polyurethane binder composition is provided to control pot life and to be useful as packing materials such as bicycle path, children`s playground, playground court and track due to excellent various physical properties. An environment-friendly polyurethane binder composition comprises 100.0 parts by weight of a urethane prepolymer base material containing 3.5~6.5% free NCO; and 100~300 parts by weight of a polyol hardener. The polyol hardener comprises inorganic filler and pigment. A bismuth compound is added based on 100.0 parts by weight of the polyol hardener so that the metal conversion amount of the bismuth compound become 0.1~3.0 parts by weight.