Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Differential temperature conditioning
Reexamination Certificate
2003-08-19
2010-11-16
Dye, Rena L (Department: 1782)
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Differential temperature conditioning
C264S530000, C264S532000, C264S535000
Reexamination Certificate
active
07833466
ABSTRACT:
A biaxially oriented polyester container with a uniformly and sufficiently elongated and thin-walled bottom part having excellent drop strength, improved ESC resistance and reduced weight, and a method of manufacturing the container. The biaxially oriented polyester container of the present invention is characterized in that, when an X-ray diffraction measurement is performed in and near a bottom center area of the biaxially oriented polyester container formed by a double-stage orientation blow molding method, a peak indicative of molecular orientation is observed near a diffraction angle of 2θ=15 to 30° and an orientation parameter (BO) expressed by the following formula (1) is in the range of 0.5≦BO≦2 in and near the bottom center area:in-line-formulae description="In-line Formulae" end="lead"?orientation parameter (BO)=Ix/Iy (1)in-line-formulae description="In-line Formulae" end="tail"?(where Ix indicates a diffraction intensity near the diffraction angle of 2θ=15 to 30° when the X-ray diffraction measurement is performed in the X-direction, and Iy indicates a diffraction intensity near the diffraction angle of 2θ=15 to 30° when the X-ray diffraction measurement is performed in a direction orthogonal to that for Ix).
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Supplementary European Search Report, dated Jul. 28, 2010, issued in corresponding European Application No. 03792705.0, filed Aug. 19, 2003 (3 pages).
Hirota Norihisa
Shibata Satoshi
Christensen O'Connor Johnson & Kindness PLLC
Dye Rena L
Kashnikow Erik
Toyo Seikan Kaisha Ltd.
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