HEAT-RESISTANT BOTTLE MADE OF POLYETHYLENE TEREPHTHALATE RESIN

PROBLEM TO BE SOLVED: To provide a heat-resistant bottle made of a PET resin of which the bottom section is not deformed even when being heated for a long time after a beverage of a high temperature is filled, and which can keep self-standing property. SOLUTION: This heat-resistant bottle made of a polyethylene terephthalate resin is equipped with a mouth section 2, a shoulder section 3, a trunk section 4 and the bottom section 5. The bottom section 5 is equipped with a grounding section 6 which has an outer diameter being 70 to 86% of the maximum diameter R1of the trunk section 4, a rising section 7 which has an outer diameter being 70 to 80% of the maximum diameter R1of the trunk section 4 and rises in the bottle 1 at an angle of 35 to 60° to the flat surface P1being surrounded by the grounding section 6, and a recess 8 having an outer diameter of 60 to 75% of the maximum diameter R1of the trunk section 4. The bottom section 5 is extended by the rising section 7 and the recess 8, and curved surface sections 8a and 8b of the recess 8 reach inward more than 20% of the maximum diameter R1of the trunk section 4. The bottom section 6 is equipped with a vertical rib 10, and the vertical rib 10 is equipped with a ridge section 11, and a slope 12 forming an angle of 20 to 35° to a flat surface P2which is surrounded by the upper peripheral edge of the rising section 7. COPYRIGHT: (C)2005,JPO&NCIPI