| 摘要 |
The present invention relates to a method for producing plastically deformable polyurethane rigid foams, wherein a) organic polyisocyanates are mixed with b) polyhydroxy compounds comprising b1) a 2 to 4-functional polyoxyalkylene polyol with a hydroxyl number of 150 to 650 and a primary hydroxyl group fraction of greater than 80% and b2) a di- to tri-functional polyoxyalkylene polyol with a hydroxyl number of 25 to 40 and a primary hydroxyl group fraction of greater than 80%, optionally c) chain-extension and/or cross-linking agents, d) blowing agents, e) catalysts and optionally f) auxiliary agents and additives to form a reaction mixture, and wherein this reaction mixture is allowed to fully react. The present invention further relates to a plastically deformable polyurethane rigid foam obtained through a method according to the invention, and use of a plastic polyurethane rigid foam according to the invention for interior paneling of a motor vehicle, in particular as a roof lining. |
