A plastic preform, container or article includes a multilayer wall having at least one layer of a matrix resin, at least one layer of a barrier resin, an adhesion-promoting material blended with the barrier resin and/or matrix resin, and an active oxygen barrier composition blended with the barrier resin and/or matrix resin. The adhesion-promoting material promotes bonding between the barrier and matrix resin layers and includes an amine polymer, preferably an imine polymer having a number of available primary, secondary or tertiary amine groups. The matrix resin preferably is an ester-containing resin, such as PET. The barrier resin preferably is EVOH. The active oxygen barrier composition includes a metal with an additive compound, and may also include a host polymer.
一种塑料预型件、容器或制品包括一层多层壁,其中至少有一层基体
树脂、至少有一层阻隔
树脂、一种与阻隔
树脂和/或基体
树脂混合的增粘材料,以及一种与阻隔
树脂和/或基体
树脂混合的活性氧阻隔组合物。附着力促进材料可促进阻隔层和基体
树脂层之间的粘合,包括胺聚合物,最好是具有多个
伯胺、仲胺或叔胺基团的
亚胺聚合物。基体
树脂最好是含酯
树脂,如 PET。阻隔
树脂最好是 EVOH。活性氧阻隔组合物包括
金属与添加剂化合物,还可包括主聚合物。