The use of an adduct of a polyfunctional epoxy compound on novolak to improve the stability of warmth of adhesives based on polyurethanes or. Polyisocyanates

摘要

The thermal stability of adhesives based on polyurethanes or polyisocyanates is improved by adding 5 - 30 parts by weight of an adduct comprising a polyfunctional epoxide compound and novolak. The parts by weight are based on 100 parts by weight of solvent-free polyurethane or polyisocyanate.