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A polyester beer bottle comprising a bottleneck, a body and a bottom of the bottle, which are once blown and shaped with polyester blank, in which arc portion in a vertical section extended from the joint of shaped bottom and body of the bottle to a plane of the bottom has a radius ranging over 15-2

A polyester beer bottle comprising a bottleneck, a body and a bottom of the bottle, which are once blown and shaped with polyester blank, in which arc portion in a vertical section extended from the joint of shaped bottom and body of the bottle to a plane of the bottom has a radius ranging over 15-25 mm; an arc radius in a vertical section of the concave quaquversal portion projecting inwards at a bottom surface of said bottle is in a range of 20-35 mm, and the distance between a top of the concave quaquversal portion to the plane of bottom is in a range of 7-15 mm; an outward projecting support flange portion is formed at the joint between said concave quaquversal portion and the bottom plane of the bottle, a height of the flange portion is in a range of 0.1-5 mm; and a side-face of the bottle is connected to said concave quaquversal portion at the bottom of the bottle via the transition arc portions respectively having different radius, in which the radius of first transition arc is in a range of 3-8 mm, and the second transition arc radius is in a range of 0.5-2 mm. The ratio between the maximum outer diameter of the bottom of the bottle and the diameter of the flange portion on said bottom plane of the bottle is in a range of 1.2-1.7.

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1. A polyester bottle comprising a bottleneck, a body and a bottom of the bottle, which are blown and shaped from a polyester blank, wherein said bottom has a lower portion and an arc portion in a vertical section extended between the body of the bottle to the lower portion of the bottom, said ar

1. A polyester bottle comprising a bottleneck, a body and a bottom of the bottle, which are blown and shaped from a polyester blank, wherein said bottom has a lower portion and an arc portion in a vertical section extended between the body of the bottle to the lower portion of the bottom, said arc portion having a radius ranging over 15-25 mm; said bottom of said bottle having a concave quaquaversal portion projecting inwards, an arc radius in a vertical section of the concave quaquaversal portion is in a range of 20-35 mm, and the distance between a top of the concave quaquaversal portion of the lower portion of the bottom is in a range of 7-15 mm; a downwardly projecting support flange portion is formed at the joint between said concave quaquaversal portion and the lower portion of the bottom of the bottle, the flange portion has a height in a range of 0.1-5 mm; and said flange portion having transition arc portions respectively having different radius. 2. The polyester bottle according to claim 1, wherein said transition arc portions comprise a first transition arc having a radius in a range of 3-8 mm, and a second transition arc having a radius in a range of 0.5-2 mm. 3. The polyester bottle according to claim 1, wherein the bottom has a maximum outer diameter and the flange portion has a diameter, the ratio between the maximum outer diameter of the bottom of the bottle and the diameter of the flange portion is in a range of 1.2-1.7. 4. The polyester bottle according to claim 1, wherein, the flange portion is a circular flange. 5. A polyester bottle comprising a bottleneck, a body and a bottom of the bottle, which are blown and shaped from a polyester blank, wherein said bottom has a lower portion, and an arc portion in a vertical section extended between the body of the bottle and the lower portion of the bottom, said arc portion having a radius, said radius of the arc portion of said vertical section is 25 mm; a said bottom of said bottle having a concave quaquaversal portion projecting inwards, an arc radius in a vertical section of the concave quaquaversal portion is 27.5 mm, the distance between a top of the concave quaquaversal portion and the lower portion of the bottom is in a range of 7-15 mm, and a downwardly projecting support flange portion located at the joint between said concave quaquaversal portion and the lower portion of the bottom of the bottle, the flange portion having a height in a range of 0.1-5 mm, said flange portion having transition arc portions respectively having different radius. 6. The polyester bottle according to claim 5, wherein the bottom has a maximum outer diameter and the flange portion has a diameter, the ratio between the maximum outer diameter of said bottom and the diameter of the flange portion is 1.5. 7. The polyester bottle according to claim 6, wherein, one of the transition arc portions has a radius of 8 mm. 8. The polyester bottle according to claim 6, wherein, the height of the flange portion is 1.6 mm. 9. The polyester bottle according to claim 6, wherein, the flange portion is a circular flange. 10. The polyester bottle according to claim 5, wherein said transition arc portions comprise a first transition arc having a radius in a range of 3-8 mm, and a second transition arc having a radius in a range of 0.5-2 mm.