Patent CH362971A successfully refreshed from Google Patents.
Patent US4770715A successfully refreshed from Google Patents.
US4770715A
Expired / Lapsed
US
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Novel compositions and method for control and clean-up of hazardous organic spills
Assignee: Ansul Inc
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Filing: 1986-05-02
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Granted: 1988-09-13
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Expires: 2006-05-02
Abstract
Abstract This invention relates to novel compositions and methods for control and clean-up of hazardous organic spills. A dry particulate composition of activated carbon and, alternatively, absorptive materials may be used to control and contain organic spills, solidify the spills and elevate their flashpoints to render them harmless. These compositions may be applied to the spills by fire-extinguisher like delivery devices which spread the compositions and the spills from a relatively safe distance without splattering the hazardous material.
Inventors
- 👤 Frederick S. Mandel
- 👤 James A. Engman
- 👤 Wayne R. Whiting
- 👤 James F. Nicol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:38
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/02; B01J20/20; C; C09; C09K; C09K3/00; C09K3/32; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/925
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
90 words
A method of absorbing and elevating the flashpoint of hazardous organic spills comprising discharging onto said spill a sufficient amount of a composition comprising about 50 to 100% activated carbon having a 50×200 size distribution and a working capacity of about 1500 m/g, about 0 to 30% absorbent magnesium oxide or organophyllic clay, 0 to 50% hydrophobic polymer having molecular weight between about 5,000 and about 30,000, 0 to 10% alumina or silica, and 0 to 5% magnesium silicate such that said spill is absorbed and its flashpoint is elevated.
Claim 2
Independent Claim
90 words
A method of absorbing and elevating the flashpoint of hazardous organic spills comprising discharging onto said spill a sufficient amount of a composition comprising about 50 to 100% activated carbon having a 50×200 size distribution and a working capacity of about 1500 m/g, about 0 to 30% absorbent magnesium oxide or organophyllic clay, 0 to 50% hydrophobic polymer having molecular weight between about 5,000 and about 30,000, 0 to 10% alumina or silica, and 0 to 5% magnesium silicate such that said spill is absorbed and its flashpoint is elevated.
Claim 3
Dependent Claim
13 words
A method according to claim 1 wherein said composition is dispensed under pressure.
Claim 4
Dependent Claim
40 words
A method according to claim 1 wherein said application is accomplished by delivering said composition to said spill under pressure on a nitrogen gas propellent from a fire-extinguisher-like delivery device such that said composition falls in a soft delivery pattern.
Claim 5
Dependent Claim
39 words
A composition for absorbing and elevating the flashpoint of hazardous organic spills which are capable of being dispensed under pressure comprising about 60% activated carbon, 30% portland cement, 5% organophyllic bentonite, 2% silica gel and 1% poly (acrylic acid).
Claim 6
Dependent Claim
39 words
A composition for absorbing and elevating the flashpoint of hazardous organic spills which are capable of being dispensed under pressure comprising about 60% activated carbon, 30% portland cement, 5% organophyllic bentonite, 2% silica gel and 1% poly (acrylic acid).
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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) | 1991-09-13 | 1992-03-14 | 1992-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-13 | 1996-03-14 | 1996-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-13 | 2000-03-14 | 2000-09-13 | $7700.00 | Window Closed / Lapsed |