US4093424A
Expired / Lapsed
US
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Thermogenic compositions
Assignee: Artience Co Ltd
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Filing: 1977-03-02
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Granted: 1978-06-06
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Expires: 1997-03-02
Abstract
Abstract A thermogenic composition comprising (1) at least one compound such as an alkali metal sulphide, polysulphide, hydrosulphide, hydrate thereof or mixture thereof, (2) at least one catalytically functional compound such as carbonaceous material or iron carbide and, if desired, (3) at least one filler such as natural or synthetic staple fibers or aluminum oxide.
Inventors
- 👤 Risaburo Yoshida
- 👤 Keisuke Kaiho
- 👤 Yusaku Ide
- 👤 Takeshi Hirose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:42
CPC Classifications
F; F24; F24V; F24V30/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
62 words
A thermogenic composition comprising (A) at least one compound selected from the group consisting of alkali metal sulphides, polysulphides, hydrosulphides, hydrates thereof and mixtures thereof and (B) at least one compound selected from the group consisting of (1) carbonaceous material, (2) iron carbide, (3) activated clay, (4) iron, nickel and cobalt sulphates and hydrates thereof and (5) potassium salt of anthraquinone sulphonate.
Claim 2
Dependent Claim
62 words
A thermogenic composition comprising (A) at least one compound selected from the group consisting of alkali metal sulphides, polysulphides, hydrosulphides, hydrates thereof and mixtures thereof and (B) at least one compound selected from the group consisting of (1) carbonaceous material, (2) iron carbide, (3) activated clay, (4) iron, nickel and cobalt sulphates and hydrates thereof and (5) potassium salt of anthraquinone sulphonate.
Claim 3
Dependent Claim
12 words
A thermogenic composition according to claim 1, further comprising a filler (C).
Claim 4
Dependent Claim
59 words
A thermogenic composition according to claim 2, wherein the filler (C) is selected from the group consisting of waste of foamed synthetic resins, silica powder, porous silica gel, Glauber's salt, barium sulphate, iron oxides, aluminum oxide and natural and synthetic staple fibers selected from the group consisting of wood dust, cotton linter, cellulose and polyester in staple fiber form.
Claim 5
Dependent Claim
25 words
A thermogenic composition according to claim 1, wherein the compound (A) is present in an amount of 10 - 90% by weight of the composition.
Claim 6
Dependent Claim
25 words
A thermogenic composition according to claim 1, wherein the compound (A) is present in an amount of 10 - 90% by weight of the composition.
Claim 7
Dependent Claim
60 words
A thermogenic composition according to claim 2, wherein the compound (A) is present in an amount of 10 - 90% by weight of the total of the compounds (A) and (B), and the filler (C) is present in a ratio by weight of from 0/100 to 90/10 between the filler (C) and the total of the compounds (A) and (B).
Claim 8
Dependent Claim
60 words
A thermogenic composition according to claim 3, wherein the compound (A) is present in an amount of 10 - 90% by weight of the total of the compounds (A) and (B), and the filler (C) is present in a ratio by weight of from 0/100 to 90/10 between the filler (C) and the total of the compounds (A) and (B).
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) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |