SYNTHETIC RESIN CONTAINER, AND METHOD FOR PRODUCING SYNTHETIC RESIN CONTAINER

WIPO Patent Application WO/2020/110468

A1

Provided are a synthetic resin container in which an inner layer body does not readily peel away from an outer layer body when a deposition film is formed on the inner surface of the inner layer body, and a method for producing the synthetic resin container. This synthetic resin container 1 has an outer layer body 2 and an inner layer body 3 that is separably laminated on the outer layer body 2, the synthetic resin container 1 being formed by stretch blow molding, wherein the synthetic resin container 1 is characterized in that: the synthetic resin container 1 comprises a cylindrical opening part 4, a barrel part 5 that is continuous with the lower portion of the opening part 4, and a bottom part 6 that blocks the lower end of the barrel part 5; the outer layer body 2 includes polyethylene terephthalate; the inner layer body 3 includes polyethylene terephthalate, a laminate material including polyethylene terephthalate, or a blend material including polyethylene terephthalate; a deposition film 3a having gas barrier properties is formed on the inner surface of the inner layer body 3; and the lower portion of the barrel part 5 and/or the bottom part 6 has ribs 5a, 6a formed thereon, the ribs 5a, 6a suppressing separation of the inner layer body 3 from the outer layer body 2 during formation of the deposition film 3a.

YANO NAOYUKI (JP)
NIIDA KAZUNARI (JP)
TATENO HIRONORI (JP)

PCT/JP2019/039533

June 04, 2020

October 07, 2019

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YOSHINO KOGYOSHO CO LTD (JP)

B65D1/02; B65D1/46

WO2017169036A1	2017-10-05
WO1998013265A2	1998-04-02

JP2018043790A	2018-03-22
JP2014511292A	2014-05-15
JP2007290772A	2007-11-08
JP2012116516A	2012-06-21

See also references of EP 3889057A4

SUGIMURA Kenji (JP)

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