Plastic and nonmetallic article shaping or treating: processes – Treating shaped or solid article – By a temperature change
Reexamination Certificate
2007-12-11
2007-12-11
Johnson, Christina (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Treating shaped or solid article
By a temperature change
C264S535000, C264S523000, C264S454000, C264S521000, C264S520000
Reexamination Certificate
active
10482120
ABSTRACT:
A method for producing bottle-type containers made of a synthetic resin, e.g., polyethylene-terephthalate resin, includes a heat treatment step for heating and crystallizing a neck portion of a perform corresponding to a neck portion of a container. In a first stage of the heat treatment step, the neck portion of the perform is temporarily heated to a temperature below a melting point of the synthetic resin, e.g., approximately 200° C. to 230° C. in the case of polyethylene terephthalate resin. In a subsequent second stage, the neck portion is maintained at a temperature within a range in which crystallization of the synthetic resin is promoted, e.g. approximately 170° C. to 195° C. in the case of polyethylene terephthalate resin.
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Iimura Yoshihiro
Uesugi Daisuke
Yamanaka Koji
Daniels Matthew J.
Johnson Christina
Oliff & Berridg,e PLC
Yoshino Kogyosho Co. Ltd.
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