Recycling of polymer materials

A process for recycling thermoplastic polymer material to produce polymer pre-form, the process comprising the steps of:

• (i) pre-treating a polymer material for example by separating, sorting, cleaning and/or shaping;
• (ii) shredding the pre-treated polymer to produce polymer flakes;
• (iii) processing the polymer material to produce a pre-form, wherein the thermoplastic polymer material comprises one or more thermoplastic polymers, selected from high density polyethylene, low density polyethylene, polypropylene and polyethylene terephthalate, characterised in that prior to the step (iii) of producing the pre-form, the polymer flakes are compacted to form pellets, wherein the compactions step is carried out using a disk agglomerator, wherein the temperature of the material being processed in the compaction step reaches 80° C. to 160° C., and in which the compacted pellets are at least partially crystallized, and wherein the process involves no extrusion.