abstract |
PROBLEM TO BE SOLVED: To provide a solventless two-component polyurethane binder composition for producing a high-quality coating or molded part without yellowing. A polyisocyanate component having a viscosity of 2000-150,000 mPas at 23 ° C., an NCO content of 14-23% by weight and a calculated average NCO functionality of at least 2.8; an average OH functionality of less than 3 at 23 ° C. A binder composition comprising a polyol component having a viscosity of 5,000 to 150,000 mPas and a hydroxyl number of 400 to 700 mg KOH / g; and optionally a catalyst. [Selection figure] None |