FIELD: production of containers. SUBSTANCE: blank is designed for industrial production of thermoplastic resin containers to be filled with liquids of high temperature and/or saturated liquids. Proposed blank has upper or neck section, middle section and end section. Middle section includes lower subsection at its lower side near end section. Lower subsection is intended for stretching at blow moulding with inclusion of support zones of bottle and adjacent zones. Angle of inclination of inner wall of blank and outer wall of above-indicated lower subsection relative to blank axis is 5-10 deg. EFFECT: provision of thermally stable reusable container with shape of bottom such as that of champagne bottle bottom. 6 cl, 8 dwg
