| 摘要 |
The profile (1) is composed mainly of plastic materials and comprises a core (2) containing a mixture of waste plastic (4), surrounded by an external sheath (3) which is formed using a continuous layer of fresh plastic. Also claimed is the method of making the plastic profile, in which waste is physically pretreated, possibly dried, preheated, kneaded, mixed, coextruded and cooled. Also claimed is the plant to carry out the process as described. |
