2¿ may be bonded to each other to form together a double bonding or an aromatic or non-aromatic ring, and X represents an oxygen atom or a hydroxyl group; and a method for modifying a polymer comprising treating the polymer with an oxygen-containing gas such as oxygen, carbon monoxide, a nitrogen oxide or a sulfur oxide in the presence of an imide compound which is represented by formula (1).
C' est le pain de I' instruction dans tout le genre humain.le plus nourrissant, le plus sain, sans aucun doute. Cette fois- ci, la méthode a échoué, même s' il plaisante, ravi, exploitant son adjointpatents-wipo patents-wipo