US5279873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite material for balloon and balloon made thereof
Assignee: Oike and Co Ltd
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Filing: 1991-10-31
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Granted: 1994-01-18
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Expires: 2011-10-31
Abstract
Abstract A composite material for a balloon having a transparency and a gas barrier, including a polymer base layer and a transparent thin layer of a silicon oxide provided on one surface of the polymer base layer, the silicon oxide layer having an atomic ratio of silicon to oxygen of 1:0.3 to 2. The composite material has a high degree of barrier to helium gas or hydrogen gas. A balloon produced from the composite material retains its buoyancy for a long period of time.
Inventors
- 👤 Kozo Oike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:05
CPC Classifications
A; A63; A63H; A63H27/00; A63H27/10; C; C08; C08J; C08J7/00; C08J7/04; C08J7/042; C08J7/0423; C08J7/043; C08J7/048; C08J7/052; A63H2027/1025; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/131; Y10T428/1334; Y10T428/1341; Y10T428/1352; Y10T428/31504; Y10T428/31652; Y10T428/31667
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
113 words
A buoyant balloon comprising a composite material which is transparent and which has a maximum helium gas transmission rate of 5 ml/m 2 ·24 hrs·atm, said composite material comprising a plastic base layer comprising at least one member selected from the group consisting of nylon film, nylon film coated with a vinylidene chloride resin, polyester film, polyethylene terephthalate film coated with a vinylidene chloride resin, polypropylene film, ethylene-vinyl alcohol copolymer film, polyethylene film, polyvinyl alcohol film, and polyvinylidene chloride film and a transparent thin layer of silicon oxide provided on one surface of the plastic base layer, said silicon oxide layer having an atomic ratio of silicon to oxygen of 1:0.3 to 2.
Claim 2
Dependent Claim
113 words
A buoyant balloon comprising a composite material which is transparent and which has a maximum helium gas transmission rate of 5 ml/m 2 ·24 hrs·atm, said composite material comprising a plastic base layer comprising at least one member selected from the group consisting of nylon film, nylon film coated with a vinylidene chloride resin, polyester film, polyethylene terephthalate film coated with a vinylidene chloride resin, polypropylene film, ethylene-vinyl alcohol copolymer film, polyethylene film, polyvinyl alcohol film, and polyvinylidene chloride film and a transparent thin layer of silicon oxide provided on one surface of the plastic base layer, said silicon oxide layer having an atomic ratio of silicon to oxygen of 1:0.3 to 2.
Claim 3
Dependent Claim
16 words
The balloon of claim 1, wherein said plastic base layer comprises an ethylene-vinyl alcohol copolymer film.
Claim 4
Dependent Claim
18 words
The balloon of claim 1, wherein a second polymer layer is further provided on said silicon oxide layer.
Claim 5
Dependent Claim
13 words
The balloon of claim 3, wherein said second polymer layer is heat sealable.
Claim 6
Dependent Claim
17 words
The balloon of claim 4, wherein a top coat is further provided on said second polymer layer.
Claim 7
Dependent Claim
12 words
The balloon of claim 5, wherein said top coat is heat sealable.
Claim 8
Dependent Claim
20 words
The balloon of claim 1, wherein an undercoat is provided between said plastic base layer and said silicon oxide layer.
Claim 9
Dependent Claim
47 words
The balloon of claim 1, wherein the composite material is provided with a desired pattern on at least one of the outer surface and the inner surface thereof, and a lighting device is disposed within the balloon, thereby enabling illumination of the balloon from the inside thereof.
References Cited (Backward Citations)
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US4684553A
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US4847157A
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US5017254A
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JPH05148511A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-01-17 | 1997-07-19 | 1998-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-17 | 2001-07-19 | 2002-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-17 | 2005-07-19 | 2006-01-18 | $7700.00 | Window Closed / Lapsed |