摘要 |
Bottles can be made, especially by extrusion stretch blow moulding, using a thermoplastic polymer composition comprising a polymer, preferably a polyester, which contains metal particles especially of antimon y which intrinsically absorb radiation in the wavelength region 500 nm to 2000 nm, in a quantity such that the reheat time of the polymer is less than the reheat time of the polymer in the absence of that quantity of particles. A method of making such metal containing polymer compositions by reducing a metal compound in situ is also described. |