| abstract |
The subjects of the invention are UV-stabilizer concentrates, which, relative to the total weight, consist of: A) 40 to 80 weight-% of at least one thermoplastic polyurethane; B) 10 to 30 weight-% 1,3,5-tri-glycidyl-isocyanurate; and C) 10 to 30 weight-% 2-(2-hydroxy-3,5,-di-tert-amyl-phenyl)-2H-benztriazol and/or 1,6-hexane-di-yl-bis-(3-(3-benzotriazol-N-yl)-4-hydroxy-5-tert-butyl)-pphenyl-propanoate, a process for their production, and their utilization to stabilize TPU against UV- and thermal-degradation. |