| abstract |
The invention concerns a method for upgrading composite materials and polyethylene terephthalate, which consists in carrying out solvolysis of the composite materials and polyethylene terephthalate, optionally in the presence of a catalyst, and in separating the product of the solvolysis containing the degradation products of the matrix of the composite materials and of the polyethylene terephthalate from the other constituents of the composite materials and other possible impurities from the polyethylene terephthalate. |