US5043088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deicing composition contianing one or more fluorinated surfactants
Assignee: Dow Chemical Co
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Filing: 1990-01-22
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Granted: 1991-08-27
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Expires: 2010-01-22
Abstract
Abstract A deicing composition for use in removing ice from a surface such as the windshield of an automobile, which consists essentially of one or more monohydric alcohols, one or more polyhydric alcohols, and one or more anionic fluorinated surfactants in combination.
Inventors
- 👤 Daniel J. Falla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:29
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/18; C09K3/185
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
40 words
A deicing composition which consists essentially of: one or more polyhydric alcohols; one or more monohydric alcohols; from about 0.001 to about 5.0% by weight of one or more fluorinated surfactants, and not more than 0.5% by weight of water.
Claim 2
Dependent Claim
40 words
A deicing composition which consists essentially of: one or more polyhydric alcohols; one or more monohydric alcohols; from about 0.001 to about 5.0% by weight of one or more fluorinated surfactants, and not more than 0.5% by weight of water.
Claim 3
Dependent Claim
16 words
A deicing composition as defined in claim 1, further comprising a non-staining, nonionic, non-azo polymeric dye.
Claim 4
Dependent Claim
28 words
A deicing composition as defined in claim 1, wherein said one or more polyhydric alcohols comprise from about 5 to about 30 percent by weight of the composition.
Claim 5
Dependent Claim
28 words
A deicing composition as defined in claim 1, wherein said one or more polyhydric alcohols comprise from about 10 to about 30 percent by weight of the composition.
Claim 6
Dependent Claim
42 words
A deicing composition as defined in claim 3, wherein said one or more polyhydric alcohols are selected from the group consisting of the alkylene and dialkylene glycols having from 2 to 4 carbon atoms in the alkyl portion or portions, respectively, thereof.
Claim 7
Dependent Claim
31 words
A deicing composition as defined in claim 5, wherein said one or more polyhydric alcohols are selected from the group consisting of ethylene glycol, diethylene glycol, propylene glycol, and dipropylene glycol.
Claim 8
Dependent Claim
26 words
A deicing composition as defined in claim 6, wherein said one or more polyhydric alcohols comprises at least about 10 percent by weight of propylene glycol.
Claim 9
Dependent Claim
28 words
A deicing composition as defined in claim 1, wherein said one or more monohydric alcohols comprise from about 70 to about 95 percent by weight of the composition.
Claim 10
Dependent Claim
28 words
A deicing composition as defined in claim 8, wherein said one or more monohydric alcohols comprise from about 70 to about 90 percent by weight of the composition.
Claim 11
Dependent Claim
32 words
A deicing composition as defined in claim 8, wherein said one or more monohydric alcohols are selected from the group consisting of the monohydric alcohols having from 1 to 3 carbon atoms.
Claim 12
Dependent Claim
25 words
A deicing composition as defined in claim 10, wherein said one or more monohydric alcohols comprises at least about 70 percent by weight of isopropanol.
Claim 13
Dependent Claim
28 words
A deicing composition as defined in claim 1, wherein said one or more fluorinated surfactants comprise from about 0.001 to about 5 percent by weight of the composition.
Claim 14
Dependent Claim
28 words
A deicing composition as defined in claim 12, wherein said one or more fluorinated surfactants comprise from about 0.001 to about 1.0 percent by weight of the composition.
Claim 15
Dependent Claim
33 words
A deicing composition as defined in claim 13, wherein said one or more fluorinated surfactants consists essentially of a mixture of mono- and bis-fluoroalkyl phosphates, ammonium salt, complexed with an aliphatic quaternary methosulfate.
Claim 16
Dependent Claim
24 words
A deicing composition as defined in claim 14, wherein said mixture comprises from about 0.003 to about 0.17 percent by weight of the composition.
Claim 17
Dependent Claim
64 words
A deicing composition which is compatible with the vinyl exterior coverings, butyl rubber seals, windshield wipers and painted surfaces and finishes adjacent an automobile windshield, the deicing composition consisting essentially of: one or more polyhydric alcohols; one or more monohydric alcohols from about 0.001 to about 5.0% by weight of; one or more fluorinated surfactants, and not more than 0.5% by weight of water.
Claim 18
Dependent Claim
64 words
A deicing composition which is compatible with the vinyl exterior coverings, butyl rubber seals, windshield wipers and painted surfaces and finishes adjacent an automobile windshield, the deicing composition consisting essentially of: one or more polyhydric alcohols; one or more monohydric alcohols from about 0.001 to about 5.0% by weight of; one or more fluorinated surfactants, and not more than 0.5% by weight of water.
Claim 19
Dependent Claim
37 words
A deicing composition as defined in claims 1 or 16, wherein the deicing composition consists substantially entirely of a mixture of one or more polyhydric alcohols, one or more monohydric alcohols, and one or more fluorinated surfactants.
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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) | 1994-08-26 | 1995-02-25 | 1995-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-26 | 1999-02-25 | 1999-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-26 | 2003-02-25 | 2003-08-27 | $7700.00 | Window Closed / Lapsed |