Synthetic resin container and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-10934048-B2
Application number	US-201615756458-A
Country	US
Kind code	B2
Filing date	Jul 15, 2016
Priority date	Aug 28, 2015
Publication date	Mar 2, 2021
Grant date	Mar 2, 2021

Abstract

A synthetic resin container that is formed in a bottle shape having a mouth and a trunk and that is provided in the trunk with at least one reduced pressure absorbing panel. The trunk has a density of 1.3695 g/cm3 or more, and a ratio of a crystal orientation in a transverse direction with respect to a total value of a crystal orientation in a machine direction and the crystal orientation in the transverse direction in the trunk is less than 44%.

First claim

The invention claimed is:

1. A synthetic resin container that is formed in a bottle shape having a mouth, a trunk and a bottom, where the trunk has at least one reduced pressure absorbing panel and the bottom closes a lower end of the trunk, wherein
the trunk has a density of 1.3695 g/cm 3 or more, and
the trunk has a crystal orientation A in a transverse direction and a crystal orientation B in a machine direction, wherein a ratio of the crystal orientation A with respect to a total value of the crystal orientation A+B in the trunk is less than 44%.

2. The synthetic resin container of claim 1 , wherein the trunk has a substantially circular section.

3. The synthetic resin container of claim 2 , wherein the at least one reduced pressure absorbing panel provided in the trunk comprises six reduced pressure absorbing panels arranged in a circumferential direction at an equal interval.

4. The synthetic resin container of claim 3 , wherein the synthetic resin container is formed of polyethylene terephthalate.

5. A method for manufacturing the synthetic resin container of claim 4 , the method comprising supplying a liquid heated to a predetermined temperature to a preform formed of a thermoplastic material in a bottomed tubular shape at a predetermined pressure to liquid blow mold the preform.

6. A method for manufacturing the synthetic resin container of claim 3 , the method comprising supplying a liquid heated to a predetermined temperature to a preform formed of a thermoplastic material in a bottomed tubular shape at a predetermined pressure to liquid blow mold the preform.

7. The synthetic resin container of claim 2 , wherein the synthetic resin container is formed of polyethylene terephthalate.

8. A method for manufacturing the synthetic resin container of claim 7 , the method comprising supplying a liquid heated to a predetermined temperature to a preform formed of a thermoplastic material in a bottomed tubular shape at a predetermined pressure to liquid blow mold the preform.

9. A method for manufacturing the synthetic resin container of claim 2 , the method comprising supplying a liquid heated to a predetermined temperature to a preform formed of a thermoplastic material in a bottomed tubular shape at a predetermined pressure to liquid blow mold the preform.

10. The synthetic resin container of claim 1 , wherein the at least one reduced pressure absorbing panel provided in the trunk comprises six reduced pressure absorbing panels arranged in a circumferential direction at an equal interval.

11. The synthetic resin container of claim 10 , wherein the synthetic resin container is formed of polyethylene terephthalate.

12. A method for manufacturing the synthetic resin container of claim 11 , the method comprising supplying a liquid heated to a predetermined temperature to a preform formed of a thermoplastic material in a bottomed tubular shape at a predetermined pressure to liquid blow mold the preform.

13. A method for manufacturing the synthetic resin container of claim 10 , the method comprising supplying a liquid heated to a predetermined temperature to a preform formed of a thermoplastic material in a bottomed tubular shape at a predetermined pressure to liquid blow mold the preform.

14. The synthetic resin container of claim 1 , wherein the synthetic resin container is formed of polyethylene terephthalate.

15. A method for manufacturing the synthetic resin container of claim 14 , the method comprising supplying a liquid heated to a predetermined temperature to a preform formed of a thermoplastic material in a bottomed tubular shape at a predetermined pressure to liquid blow mold the preform.

16. A method for manufacturing the synthetic resin container of claim 1 , the method comprising supplying a liquid heated to a predetermined temperature to a preform formed of a thermoplastic material in a bottomed tubular shape at a predetermined pressure to liquid blow mold the preform.

17. A synthetic resin container that is formed in a bottle shape having a mouth, a trunk, two lower annular concave ribs and a bottom, where
the trunk has at least one reduced pressure absorbing panel and
between the trunk and the bottom, the two lower annular concave ribs are arranged vertically side by side to reinforce the trunk; wherein
the trunk has a density of 1.3695 g/cm 3 or more, and
the trunk has a crystal orientation A in a transverse direction and a crystal orientation B in a machine direction, wherein a ratio of the crystal orientation A with respect to a total value of the crystal orientation A+B in the trunk is less than 44%.

Assignees

• Okuyama Yuichi
• Shiokawa Mitsuru
• Yoshino Kogyosho Co Ltd

Inventors

• Okuyama Yuichi
• Shiokawa Mitsuru

Classifications

• B29C49/0005

  characterised by the material · CPC title

• B29C49/78 Primary

  Measuring, controlling or regulating · CPC title

• B29C49/42832

  Moving or inverting sections, e.g. inverting bottom as vacuum panel · CPC title

• B29C49/42808

  Filling the article · CPC title

• B29C49/42802

  a closure or a sealing foil to the article or pincing the opening · CPC title