US4415465A
Expired / Lapsed
US
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Heat-storing composition
Assignee: Hitachi Ltd
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Filing: 1982-03-10
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Granted: 1983-11-15
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Expires: 2002-03-10
Abstract
Abstract Supercooling of sodium thiosulfate pentahydrate is prevented by adding thereto naphtharene or naphthol and/or at least one of calcium sulfate, potassium chloride, sodium chloride, potassium bromide, sodium bromide, potassium iodide, and sodium iodide, or a pyridine.
Inventors
- 👤 Keiichi Koike
- 👤 Michio Yanadori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:00
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/02; C09K5/06; C09K5/063; Y; Y10; Y10S; Y10S165/00; Y10S165/902
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
14 words
A heat-storing composition which comprises sodium thiosulfate pentahydrate and naphthalene as a nucleating agent.
Claim 2
Dependent Claim
14 words
A heat-storing composition which comprises sodium thiosulfate pentahydrate and naphthalene as a nucleating agent.
Claim 3
Dependent Claim
27 words
The heat-storing composition according to claim 1, wherein the naphthalene is contained in an amount of 0.01-10% by weight on the basis of the sodium thiosulfate pentahydrate.
Claim 4
Dependent Claim
30 words
A heat-storing composition which comprises sodium thiosulate pentahydrate, naphthalene and one of calcium sulfate, potassium chloride, sodium chloride, potassium bromide, sodium bromide, potassium iodide, and sodium iodide as nucleating agents.
Claim 5
Dependent Claim
30 words
A heat-storing composition which comprises sodium thiosulate pentahydrate, naphthalene and one of calcium sulfate, potassium chloride, sodium chloride, potassium bromide, sodium bromide, potassium iodide, and sodium iodide as nucleating agents.
Claim 6
Dependent Claim
55 words
The heat-storing composition according to claim 3, wherein the naphthalene is contained in an amount of 0.01-10% by weight, and one of the calcium sulfate, potassium chloride, sodium chloride, potassium bromide, sodium bromide, potassium iodide, and sodium iodide is contained in an amount of 0.01-10% by weight, on the basis of the sodium thiosulfate pentahydrate.
Claim 7
Dependent Claim
29 words
A heat-storing composition, which comprises sodium thiosulfate pentahydrate, naphthalene and at least one of calcium sulfate, potassium chloride, sodium chloride, potassium bromide, sodium bromide, potassium iodide, and sodium iodide.
Claim 8
Dependent Claim
29 words
A heat-storing composition, which comprises sodium thiosulfate pentahydrate, naphthalene and at least one of calcium sulfate, potassium chloride, sodium chloride, potassium bromide, sodium bromide, potassium iodide, and sodium iodide.
Claim 9
Dependent Claim
57 words
The heat-storing composition according to claim 5, wherein the naphthalene is contained in an amount of 0.01-10% by weight, and at least one of the calcium sulfate, potassium chloride, sodium chloride, potassium bromide, sodium bromide, potassium iodide, and sodium iodide are contained in an amount of 0.01-10% by weight, on the basis of the sodium thiosulfate pentahydrate.
Claim 10
Dependent Claim
14 words
A heat-storing composition which comprises sodium thiosulfate pentahydrate and naphthol as a nucleating agent.
Claim 11
Dependent Claim
14 words
A heat-storing composition which comprises sodium thiosulfate pentahydrate and naphthol as a nucleating agent.
Claim 12
Dependent Claim
27 words
The heat-storing composition according to claim 7, wherein the naphthol is contained in an amount of 0.01-10% by weight on the basis of the sodium thiosulfate pentahydrate.
Claim 13
Dependent Claim
10 words
A heat-storing composition which comprises sodium thiosulfate pentahydrate and pyridine.
Claim 14
Dependent Claim
10 words
A heat-storing composition which comprises sodium thiosulfate pentahydrate and pyridine.
Claim 15
Dependent Claim
27 words
The heat-storing composition according to claim 9, wherein the pyridine is contained in an amount of 1-10% by weight, on the basis of the sodium thiosulfate pentahydrate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-14 | 1987-05-16 | 1987-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-14 | 1991-05-16 | 1991-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-14 | 1995-05-16 | 1995-11-15 | $7700.00 | Window Closed / Lapsed |