Title:
METHOD AND DEVICE FOR PRODUCING RESIN CONTAINER
Document Type and Number:
WIPO Patent Application WO/2023/204262
Kind Code:
A1
Abstract:
This method for producing a resin container comprises an injection molding step for injection molding a bottomed cylindrical resin preform, and a blow molding step for blow molding the preform while the preform retains the heat from injection molding to produce a polygonal resin container having a plurality of corners in the circumferential direction. In the circumferential direction of the preform, the thickness of a first site corresponding to a wall surface of the container is greater than the thickness of a second site corresponding to a corner of the container, and the outer peripheral surface at the second site of the preform is positioned radially inward from the outer peripheral surface at the first site of the preform.
Inventors:
TAKAHASHI JUNJI (JP)
Application Number:
PCT/JP2023/015707
Publication Date:
October 26, 2023
Filing Date:
April 20, 2023
Export Citation:
Assignee:
NISSEI ASB MACHINE CO LTD (JP)
International Classes:
B29B11/08; B29B11/14; B29C49/06; B65D1/00
Domestic Patent References:
| WO2020171160A1 | 2020-08-27 |
Foreign References:
| CN206883953U | 2018-01-16 | |||
| JPS5772826A | 1982-05-07 | |||
| JPH08504699A | 1996-05-21 |
Attorney, Agent or Firm:
TAKAOKA Ryoichi et al. (JP)
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