| 摘要 |
A multi-layered container for hazardous substances that consists of co-extruded layers, where one of the layers comprises regrind material from all of the layers. When the container is bi-layered, the outer layer is produced from a mixture of virgin high-density polyethylene and regrind material from both the inner and outer layers, the regrind material ranges from 15 to 40% of the outer layer, and the thickness of the outer layer ranges from 90%-98% of the overall wall thickness of the container. When the container is tri-layered, the outer layer comprises HDPE, the intermediate layer comprises a mixture of HDPE and regrind material from the outer, intermediate, and inner layers, and the inner layer comprises a polyamide homopolymer.
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