Improvements in or relating to the production of hollow articles from organic thermoplastic materials

摘要

1,014,599. Blow moulding. IMPERIAL CHEMICAL INDUSTRIES Ltd. May 27, 1964 [June 10, 1963], No. 23015/63. Heading B5A. In an extrusion-blow moulding process the surface of the extrudate is heated by passage through a heating zone, e.g. ring burner, before entry into the blow mould.