IP Library Granted Patent US 8,822,552
Granted Patent B2
US 8,822,552 · App. 13/127,324 · Granted Sep 2, 2014

Spray can product and method of manufacturing spray can product

Inventors: Toshifumi Hatanaka (Himeji, JP); Masaki Okada (Fuji, JP); Kiyotaka Miyata (Fuji, JP); Teruo Miura (Fuji, JP)
Assignees: NKK Co., Ltd.; Showa Denko Gas Products Co., Ltd.; Japan Petroleum Exploration Co., Ltd.
F17C11/00F23D14/28B65B31/003
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Quick Facts
Patent No.
US 8,822,552
App. No.
13/127,324
Granted
Sep 2, 2014
Kind
B2
Abstract

A spray can product capable of preventing leakage where used or stored in a tilted or an inverted position, and keeping good safety and liquid retention even where a flammable liquefied gas is used. The spray can product is formed by filling a spray can having an ejection opening with a liquefied gas and an absorbing body for retaining liquid, and the absorbing body is composed of an assembly of cellulose fibers containing at least 45 mass % of fine cellulose fibers having a fiber length of 0.35 mm or less. The absorbing body compressed into a block-shaped configuration corresponding to that of the spray can is accommodated within the spray can while defining a space on the side of an ejection opening, and a lid-like member is provided between the space and the absorbing body to protect a surface of the absorbing body in a gas permeable manner.

Claims (8)

1. A spray can product manufactured by filling a liquefied gas and an absorbing body for retaining liquid in a spray can having an ejection opening, comprising:

the absorbing body being composed of an assembly of cellulose fibers containing at least 90 mass % of cellulose fibers having a fiber length of 1.5 mm or less, the absorbing body being compressed into a block-shaped configuration corresponding to that of the spray can and being accommodated within the spray can, while defining a space between the election opening and the absorbing body, and

a disk-shaped member being provided between the space and the absorbing body protecting a surface of the absorbing body in a gas permeable manner, the disk-shaped member including a disk-shaped porous body adapted to be press-fitted in the spray can into close contact with the surface of the absorbing body.

2. The spray can product as claimed in claim 1 , wherein the disk-shaped porous body is composed of one of a non-woven fabric and a foam resin.

3. The spray can product as claimed in claim 1 , wherein the absorbing body is prepared by previously forming said assembly of cellulose fibers into a columnar block-shaped compressed body with a configuration corresponding to that of the spray can, and directly filling said columnar block-shaped compressed body in the spray can.

4. The spray can product as claimed in claim 1 , wherein the liquefied gas is a flammable liquefied gas.

5. The spray can product as claimed in claim 1 , wherein the liquefied gas is composed of a gas exhibiting an ozone-depleting potential of 0, and containing no hydrofluorocarbon.

6. The spray can product as claimed in claim 1 , wherein the absorbing body is composed of an assembly of cellulose fibers containing at least 45 mass % of fine cellulose fibers having a fiber length of 0.35 mm or less.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 5, 2018
From: SHOWA DENKO GAS PRODUCTS CO., LTD.; JAPAN PETROLEUM EXPLORATION CO., LTD.
To: NKK CO., LTD.
Reel/Frame 046273/0272 →
CHANGE OF NAME Recorded Feb 9, 2012
From: SHOWA TANSAN CO., LTD.
To: SHOWA DENKO GAS PRODUCTS CO., LTD.
Reel/Frame 027676/0400 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 3, 2011
From: HATANAKA, TOSHIFUMI; OKADA, MASAKI; MIYATA, KIYOTAKA; MIURA, TERUO
To: NKK CO., LTD.; SHOWA TANSAN CO., LTD.; JAPAN PETROLEUM EXPLORATION CO., LTD.
Reel/Frame 026216/0499 →
Priority Claims (1)
JP 2008-283288 · Nov 4, 2008 · national
Continuity (1)
Related Publication 20110218096A1 · Sep 8, 2011