Patent US4462831A successfully refreshed from Google Patents.
US4462831A
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Fire and heat protection material of ablative type
Assignee: RASPIK Ltd A SHLOMO BEN YOSEF STR IR GANIM
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Filing: 1982-07-27
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Granted: 1984-07-31
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Expires: 2002-07-27
Abstract
Abstract The present invention relates to a fire and heat protection material of ablative type. According to the invention an organic binder is mixed with a filler consisting of hydrated aluminum sulfate of the general formula Al 2 (SO 4 ) 3 .n H 2 O (wherein n=14-18) being present in amounts of more than 65% by wt of the mixture. The fire and heat protection material can be produced in the form of hard sheets, tapes, films, putties or paints, the time of heat protection being even more than 90 minutes. The material can be used for coating fuel tanks and particularly for protection of stationary stores of explosives and ammunition.
Inventors
- 👤 Vitaly Raevsky
- 👤 Gregory Svechinsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:54
CPC Classifications
C; C09; C09K; C09K21/00; C09K21/02; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10T; Y10T442/00; Y10T442/20; Y10T442/2631; Y10T442/30; Y10T442/3472; Y10T442/3528; Y10T442/3602; Y10T442/3667; Y10T442/3691
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
89 words
A non-refractory ablative, fire- and heat-protection material for one time use, comprising an organic binder selected from the group consisting of natural and synthetic polymers, rubbers, natural and synthetic resins, natural and synthetic asphalts and bitumens including latexes, solutions of the above substances or mixtures thereof, and a filler consisting of hydrated aluminum sulfate of the general formula Al 2 (SO 4 ) 3 .nH 2 O wherein n=14-18 in an amount of more than 75% by weight of the material, said filler being free of any cementitious material.
Claim 2
Dependent Claim
89 words
A non-refractory ablative, fire- and heat-protection material for one time use, comprising an organic binder selected from the group consisting of natural and synthetic polymers, rubbers, natural and synthetic resins, natural and synthetic asphalts and bitumens including latexes, solutions of the above substances or mixtures thereof, and a filler consisting of hydrated aluminum sulfate of the general formula Al 2 (SO 4 ) 3 .nH 2 O wherein n=14-18 in an amount of more than 75% by weight of the material, said filler being free of any cementitious material.
Claim 3
Dependent Claim
29 words
A fire- and heat protection material as in claim 1, wherein technical grade of Al 2 (SO 4 ) 3 .16H 2 O is utilized as a filler component.
Claim 4
Dependent Claim
22 words
A fire- and heat protection material as in claim 1, being reinforced with glass cloth, asbestos cloth, textile fabric or metal wire.
Claim 5
Dependent Claim
20 words
A fire- and heat protection material as in claim 3, in the form of composite of two or more layers.
Claim 6
Independent Claim
94 words
A method for the manufacture of a fire- and heat protection material which comprises the homogeneous mixing of an organic binder selected from the group consisting of natural and synthetic polymers, rubbers, natural and synthetic resins, natural and synthetic asphalts and bitumens including latexes, solutions of the above substances and mixtures thereof and a filler free from any cementitious material consisting of hydrated aluminum sulphate of the general formula Al 2 (SO 4 ) 3 .nH 2 O wherein n=14-18, said filler being in amounts of more than 75% by weight of the mixture.
Claim 7
Independent Claim
94 words
A method for the manufacture of a fire- and heat protection material which comprises the homogeneous mixing of an organic binder selected from the group consisting of natural and synthetic polymers, rubbers, natural and synthetic resins, natural and synthetic asphalts and bitumens including latexes, solutions of the above substances and mixtures thereof and a filler free from any cementitious material consisting of hydrated aluminum sulphate of the general formula Al 2 (SO 4 ) 3 .nH 2 O wherein n=14-18, said filler being in amounts of more than 75% by weight of the mixture.
Claim 8
Dependent Claim
41 words
A method for the manufacture of a fire- and heat protection material according to claim 5, wherein the organic binder is first processed to its final form and subsequently the Al 2 (SO 4 ) 3 .nH 2 O is incorporated.
References Cited (Backward Citations)
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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) | 1987-07-31 | 1988-01-30 | 1988-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-31 | 1992-01-30 | 1992-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-31 | 1996-01-30 | 1996-07-31 | $7700.00 | Window Closed / Lapsed |