The present invention relates to a process for recycling glass fiber-reinforced plastics, in particular plastics based on polyamide, polybutylene terephthalate or polyethylene terephthalate, to recover both the monomers of the polymer and the glass used for the glass fibers.

Described herein are methods of preparing compounds derived from triglycerides or condensation polymers such as polyesters and/or polyamides. The methods may include subjecting triglyceride or condensation polymer containing matter to mechanical processing in the presence of a nucleophile.

Described herein are methods of preparing compounds derived from triglycerides or condensation polymers such as polyesters and/or polyamides. The methods may include subjecting triglyceride or condensation polymer containing matter to mechanical processing in the presence of a nucleophile.

Described herein are methods of preparing compounds derived from triglycerides or condensation polymers such as polyesters and/or polyamides. The methods may include subjecting triglyceride or condensation polymer containing matter to mechanical processing in the presence of a nucleophile.

Described herein are methods of preparing compounds derived from triglycerides or condensation polymers such as polyesters and/or polyamides. The methods may include subjecting triglyceride or condensation polymer containing matter to mechanical processing in the presence of a nucleophile.

Described herein are methods of preparing compounds derived from triglycerides or condensation polymers such as polyesters and/or polyamides. The methods may include subjecting triglyceride or condensation polymer containing matter to mechanical processing in the presence of a nucleophile.

A method of collecting a fibrous filling material and -caprolactam includes adding a polyamide 6 resin composition (A) containing at least a fibrous filling material (D) and at least one of water (B) heated to 290 C. or higher and 350 C. or lower and a polyamide 6 oligomer aqueous solution (B1) heated to 290 C. or higher and 350 C. or lower to make contact with each other to obtain a mixture (C) containing at least the fibrous filling material (D), -caprolactam, a polyamide 6 oligomer, and the water (B), and collecting the fibrous filling material (D) and the -caprolactam from the mixture (C).

The present invention relates to a process for separating at least one -caprolactam oligomeric compound CPO from a stream S.sub.R comprising said at least one CPO and -caprolactam monomeric compound CPM.

The present invention relates to a process for separating at least one -caprolactam oligomeric compound CPO from a stream S.sub.R comprising said at least one CPO and -caprolactam monomeric compound CPM.

The present invention provides an improved process for the recovery of -caprolactam from Nylon 6 comprising multi-component material, in particular multi-layered film. Further, the invention provides a plant configured to carry out the process of the invention, and the recovered e-caprolactam obtainable by the process of the invention that has a product carbon footprint of less than 2.5 kg CO.sub.2 equivalent per kg purified e-caprolactam (based on data originating from ecoinvent version 3.7.1; location: Europe).