Tubular container

Patent metadata

Field	Value
Publication number	US-11214408-B2
Application number	US-201615565010-A
Country	US
Kind code	B2
Filing date	Apr 6, 2016
Priority date	Apr 8, 2015
Publication date	Jan 4, 2022
Grant date	Jan 4, 2022

Abstract

To provide a tubular container which has non-absorbing properties with respect to contents as well as gas barrier properties. A tubular container 1 comprises at least an outlet unit 20 provided with an outlet part 21 through which contents are dispensed and a shoulder part 24 that extends radially outward from the outlet part 21; and a body part 10 that is welded to the shoulder part 24 of the outlet unit 20 and stores the contents therein, wherein the body part 10 comprises at least an innermost layer formed from a non-absorbing resin on an inner side that comes into contact with the contents, an outermost layer formed on an outermost side, and an intermediate layer formed between the innermost layer and the outermost layer and including a gas barrier layer. This tubular container 1 is characterized by a structural form wherein all surfaces coming into contact with the contents are formed from a non-absorbing resin or a structural form with a transparent body part including a gas barrier layer.

First claim

What is claimed is:

1. A tubular container, comprising:
an outlet unit having an outlet part through which contents are dispensed, a shoulder part that extends radially outward from the outlet part, and a membrane fabricated with a same material as a material forming the outlet part and formed on an inner side of the outlet part to close an opening of the outlet part; and
a body part comprising a laminated film and welded to the shoulder part of the outlet unit and configured to store the contents therein,
wherein the laminated film has a one side edge overlapped and welded to the other side edge such that a first surface of the one side edge is welded to a second surface of the other side edge,
the body part has one end in an axial direction welded to an outer peripheral surface of the shoulder part,
the body part has inner surfaces of the other end in the axial direction aligned and welded together or has surfaces that come into contact with the contents welded to a lid member comprising a non-absorbing resin,
the laminated film comprises an innermost layer comprising a non-absorbing resin on an inner side that comes into contact with the contents, an outermost layer comprising a non-absorbing resin on an outermost side, and an intermediate layer which is formed between the innermost layer and the outermost layer and includes a gas barrier layer,
the outlet unit comprises an innermost layer comprising a non-absorbing resin, an outermost layer comprising a non-absorbing resin, and an intermediate layer positioned between the outermost layer and the innermost layer and including a gas barrier layer,
each of the non-absorbing resins included in the tubular container is a same non-absorbing resin which comprises an isophthalic acid-modified polyethylene terephthalate resin, and
the gas barrier layer included in the laminated film of the body part is at least one selected from the group consisting of a metal foil, a metal deposited film, and an inorganic vapor-deposited film, and the gas barrier layer included in the outlet unit is at least one selected from the group consisting of an ethylenevinyl alcohol copolymer, a polyvinyl alcohol, a polyamide resin, polyvinylidene chloride, and a fluorine-based resin.

2. The tubular container according to claim 1 , wherein the laminated film comprises at least one layer comprising at least one resin selected from the group consisting of a polyolefin, an adhesive resin, and a thermoplastic elastomer.

3. The tubular container according to claim 1 , wherein each of the innermost layer and the outermost layer of the laminated film has a thickness of from 10 to 100 μm.

4. The tubular container according to claim 1 , wherein the intermediate layer of the laminated film has a thickness of from 5 to 60 μm.

5. The tubular container according to claim 1 , wherein the intermediate layer of the outlet unit comprises an ethylenevinyl alcohol copolymer and has a thickness of from 10 to 100 μm.

6. The tubular container according to claim 1 , wherein the laminated film further comprises a flexible layer comprising at least one selected from the group consisting of a polypropylene, a polyethylene, an olefin elastomer, a styrene elastomer, and a polyolefin having adhesiveness.

7. A tubular container, comprising:
an outlet unit having an outlet part through which contents are dispensed, a shoulder part that extends radially outward from the outlet part, and a membrane fabricated with a same material as a material forming the outlet part and formed on an inner side of the outlet part to close an opening of the outlet part; and
a body part welded to the shoulder part of the outlet unit and configured to store the contents therein,
wherein the body part is a transparent body part comprising an innermost layer comprising a non-absorbing resin on an inner side that comes into contact with the contents when the contents are stored in the tubular container, an outermost layer formed on an outermost side, and an intermediate layer which is formed between the innermost layer and the outermost layer and includes a gas barrier layer,
the outlet unit comprises an innermost layer comprising a non-absorbing resin, an outermost layer comprising a non-absorbing resin, and an intermediate layer positioned between the outermost layer and the innermost layer and including a gas barrier layer, each of the non-absorbing resins included in the tubular container is a same non-absorbing resin which comprises an isophthalic acid-modified polyethylene terephthalate resin, and
each of the gas barrier layers included in the tubular container comprises at least one resin selected from the group consisting of an ethylene-vinyl alcohol copolymer resin, a polyvinyl alcohol resin, a polyamide resin, and a polyvinylidene chloride resin.

8. The tubular container according to claim 7 , wherein the body part has one end in an axial direction welded to an outer peripheral surface of the shoulder part, and has inner surfaces of the other end in the axial direction aligned and welded together or welded to a lid member.

9. The tubular container according to claim 7 , wherein the outlet unit and the body part are integral with one another, the body part has one end and the other end in an axial direction, and inner surfaces of the other end are aligned and welded together or welded to a lid member.

10. The tubular container according to claim 7 , wherein the gas barrier layer has oxygen absorbency, or an oxygen absorbing layer is formed between the gas barrier layer and the innermost layer.

11. The tubular container according to claim 7 , wherein the intermediate layer is a transparent deposited layer having a gas barrier property.

12. The tubular container according to claim 8 , wherein the outlet unit and the body part are integral with one another and comprise the innermost layer, the outermost layer, and the intermediate layer.

13. The tubular container according to claim 8 , wherein the gas barrier layer has oxygen absorbency, or an oxygen absorbing layer is formed between the gas barrier layer and the innermost layer.

14. The tubular container according to claim 8 , wherein the intermediate layer is a transparent deposited layer having a gas barrier property.

15. The tubular container according to claim 9 , wherein the gas barrier layer has oxygen absorbency, or an oxygen absorbing layer is formed between the gas barrier layer and the innermost layer.

16. The tubular container according to claim 9 , wherein the intermediate layer is a transparent deposited layer having a gas barrier property.

17. The tubular container according to claim 7 , wherein each of the innermost layer and the outermost layer of the body part has a thickness of from 10 to 100 μm.

18. The tubular container according to claim 7 , wherein the intermediate layer of the body part has a thickness of from 5 to 60 μm.

19. The tubular container according to claim 7 , wherein the intermediate layer of the outlet unit comprises an ethylenevinyl alcohol copolymer and has a thickness of from 10 to 100 μm.

20. The tubular container according to claim 7 , wherein the laminated film further comprises a flexible layer comprising at least one selected from the group consisting of a polypropylene, a polyethylene, an olefin elastomer, a styrene elastomer, and a polyolefin having adhesiveness.

Assignees

• Fujimori Kogyo Co Ltd

Inventors

• Yoshida Mihoko
• Suzuki Toyoaki
• Takematsu Atsushi
• Eto Yuki
• Kashima Kosuke
• Kanazawa Asako

Classifications

• B65D35/28

  for expelling contents · CPC title

• B65D35/02 Primary

  Body construction · CPC title

• B32B2597/00

  Tubular articles, e.g. hoses, pipes · CPC title

• B32B2439/00

  Containers; Receptacles · CPC title

• B32B2307/7244

  Oxygen barrier · CPC title