| 摘要 |
The application relates to compositions for preparing an article, preform or container comprising a base polyester, a copolyester-ether, a transition metal-based oxidation catalyst, and a monomeric, oligomeric or polymeric hindered amine light stabilizer of formula (I),
wherein each R1 independently represents C1-C4 alkyl, R2 represents H, C1-C4 alkyl, OH, O-C1-C4 alkyl, or a further part of an oligomeric or polymeric HALS, and R3 represents a further part of a monomeric, oligomeric or polymeric HALS. |
