Container for pressurized gas

Patent metadata

Field	Value
Publication number	US-2017307139-A1
Application number	US-201515520690-A
Country	US
Kind code	A1
Filing date	Oct 28, 2015
Priority date	Oct 31, 2014
Publication date	Oct 26, 2017
Grant date	—

Abstract

Disclosed are articles useful as the body of a container for containing gas under pressure, and containers which comprise the articles to which are affixed valves to control the flow of gas out of the container, wherein the articles comprise a hollow container body, having an external surface and having an opening through which gas can enter or leave the interior of the hollow container body; optionally but preferably a layer of fiber-reinforced polymer around the exterior of the container body, and an external layer of elastomer around and sealed to the external surface of the layer of fiber-reinforced polymer if present or else to the cylinder body.

First claim

What is claimed is:

1 . An article useful as the body of a container for containing gas under pressure, comprising
a hollow container body, having an external surface and having an opening through which gas can enter or leave the interior of the hollow container body; a layer of fiber-reinforced polymer around the exterior of the container body, attached to the external surface of the container body and having an external surface; and a layer of elastomer around and sealed to the external surface of the layer of fiber-reinforced polymer.

2 . An article according to claim 1 wherein said layer of fiber-reinforced polymer does not contain said elastomer, and said layer of elastomer does not contain said fiber-reinforced polymer, and a layer comprising a mixture of said elastomer and said fiber-reinforced polymer is present between said layer of fiber-reinforced polymer and said layer of elastomer.

3 . An article according to claim 1 wherein said elastomer is selected from the group consisting of polyurethanes and polyureas.

4 . A container useful for containing gas under pressure, comprising the article of claim 1 and further comprising a valve connected to said opening which can selectively prevent passage of gas through said opening and can controllably control the flow of gas through said opening.

5 . A container according to claim 4 wherein said layer of fiber-reinforced polymer does not contain said elastomer, and said layer of elastomer does not contain said fiber-reinforced polymer, and a layer comprising a mixture of said elastomer and said fiber-reinforced polymer is present between said layer of fiber-reinforced polymer and said layer of elastomer.

6 . A container according to claim 4 wherein said elastomer is selected from the group consisting of polyurethanes and polyureas.

7 . A container according to claim 4 containing gas within said hollow container body at a pressure of 1000 pounds per square inch to 8000 pounds per square inch.

8 . A container according to claim 4 containing gas within said hollow container body at a pressure of at least 1000 pounds per square inch.

9 . A container according to claim 4 containing gas within said hollow container body at a pressure of at least 4000 pounds per square inch.

10 . An article useful as the body of a container for containing gas under pressure, comprising
a hollow container body, having an external surface and having an opening through which gas can enter or leave the interior of the hollow container body; and a layer of elastomer around and sealed to the external surface of the layer of the hollow container body.

11 . An article according to claim 10 wherein said elastomer is selected from the group consisting of polyurethanes and polyureas.

12 . A container useful for containing gas under pressure, comprising the article of claim 10 and further comprising a valve connected to said opening which can selectively prevent passage of gas through said opening and can controllably control the flow of gas through said opening.

13 . A container according to claim 12 wherein said elastomer is selected from the group consisting of polyurethanes and polyureas.

14 . A container according to claim 12 containing gas within said hollow container body at a pressure of 1000 pounds per square inch to 8000 pounds per square inch.

15 . A container according to claim 12 containing gas within said hollow container body at a pressure of at least 1000 pounds per square inch.

16 . A container according to claim 11 containing gas within said hollow container body at a pressure of at least 4000 pounds per square inch.

Assignees

• Praxair Technology Inc

Inventors

• Sinha Ashwini K
• Guo Qiong
• Yardimci Ozlem
• Smith Stanley M
• Spohn Ronald F
• Bursac Ranko

Classifications

• C08J7/0427

  with only one layer of a composition containing a polymer binder (with more layers C08J7/042) · CPC title

• C08J2379/08

  Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors · CPC title

• F17C2203/066

  Plastics · CPC title

• F17C2223/0123

  gaseous, e.g. CNG, GNC · CPC title

• F17C2205/0394

  in direct contact with the pressure vessel · CPC title