| 摘要 |
<p>Flame retardant compositions that are thermoplastic at extrusion temperatures (240-270 °C) and cross-linked below 210 °C, the cross-linking being reversible at certain temperatures, are disclosed. Said compositions include a polymer (A) having anhydride or hydroxyl functions and a bifunctional reagent (B) having either hydroxyl or anhydride functions, respectively, or (i) a function reacting reversibly with (A) and (ii) a function reacting irreversibly with (A). Said compositions are useful for sheathing electrical cables.</p> |
