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US5366650A
Expired / Lapsed
US
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Ice-melting composition having anti-corrosion properties
Assignee: Castlebar Industries Corp
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Filing: 1993-08-13
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Granted: 1994-11-22
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Expires: 2013-08-13
Abstract
Abstract The present invention relates to ice melters having a ph of less than 7 to make them acidic and having an anti-corrosion compound dispersed therein, such as 2 Butyne-1,4 diol, so that the ice melter is environmentally safe and greatly reduces the corrosion of steel bridges, guard rails on roads, and the like.
Inventors
- 👤 Arnold Wiesenfeld
- 👤 James K. Barbour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:28
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/18; C09K3/185
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
84 words
An ice-melting composition having anti-corrosion properties, comprising: a) an ice-melting chemical selected from the group consisting of a chloride salt, urea, ammonium sulfate, calcium magnesium acetate, and combinations thereof, said ice-melting chemicals being at least 95% by weight of said ice-melting composition; b) said ice-melting chemicals having a ph value of less than 7 so as to be acidic; and c) an anti-corrosion compound being 2-butyne-1,4 diol in said ice-melting composition in the range of 0.20% to 5% by weight of said ice-melting composition.
Claim 2
Dependent Claim
84 words
An ice-melting composition having anti-corrosion properties, comprising: a) an ice-melting chemical selected from the group consisting of a chloride salt, urea, ammonium sulfate, calcium magnesium acetate, and combinations thereof, said ice-melting chemicals being at least 95% by weight of said ice-melting composition; b) said ice-melting chemicals having a ph value of less than 7 so as to be acidic; and c) an anti-corrosion compound being 2-butyne-1,4 diol in said ice-melting composition in the range of 0.20% to 5% by weight of said ice-melting composition.
Claim 3
Dependent Claim
22 words
An ice-melting composition in accordance with claim 1, wherein said chloride salt is sodium chloride, potassium chloride, calcium chloride, or magnesium chloride.
Claim 4
Dependent Claim
23 words
An ice-melting composition in accordance with claim 1, wherein said ice-melting chemicals have a ph in the range of between 5.0 and 6.0.
Claim 5
Dependent Claim
28 words
An ice-melting composition in accordance with claim 1, wherein said 2 Butyne-1,4 diol is dispersed in said ice-melting composition in the range of 0.20% to 1% by weight.
Claim 6
Dependent Claim
28 words
An ice-melting composition in accordance with claim 1, wherein said 2 Butyne-1,4 diol is dispersed in said ice-melting composition in the range of 0.45% to 0.55% by weight.
Claim 7
Dependent Claim
105 words
An ice-melting composition having anti-corrosion properties, comprising: a) an ice-melting chemical selected from the group consisting of a chloride salt, urea, ammonium sulfate, calcium magnesium acetate, and combinations thereof, said ice-melting chemicals being at least 95% by weight of said ice-melting composition; b) said ice-melting chemicals having a ph value of less than 7 so as to be acidic; and c) an anti-corrosion compound dispersed in said ice-melting composition in the range of 0.20% to 5% by weight of said ice-melting composition selected from the group consisting of an acelylenic alcohol derivative, alkyl amine, oximine, aryl amine, a thiourea derivative, and an alkyl amine derivative.
Claim 8
Dependent Claim
105 words
An ice-melting composition having anti-corrosion properties, comprising: a) an ice-melting chemical selected from the group consisting of a chloride salt, urea, ammonium sulfate, calcium magnesium acetate, and combinations thereof, said ice-melting chemicals being at least 95% by weight of said ice-melting composition; b) said ice-melting chemicals having a ph value of less than 7 so as to be acidic; and c) an anti-corrosion compound dispersed in said ice-melting composition in the range of 0.20% to 5% by weight of said ice-melting composition selected from the group consisting of an acelylenic alcohol derivative, alkyl amine, oximine, aryl amine, a thiourea derivative, and an alkyl amine derivative.
Claim 9
Dependent Claim
22 words
An ice-melting composition in accordance with claim 6, wherein said chloride salt is sodium chloride, potassium chloride, calcium chloride, or magnesium chloride.
Claim 10
Dependent Claim
23 words
An ice-melting composition in accordance with claim 6, wherein said ice-melting chemicals have a pH in the range of between 5.0 and 6.0.
Claim 11
Dependent Claim
28 words
An ice-melting composition in accordance with claim 6, wherein said acelylenic alcohol derivative is dispersed in said ice-melting composition in the range of 0.20% to 1% by weight.
Claim 12
Dependent Claim
28 words
An ice-melting composition in accordance with claim 6, wherein said acelylenic alcohol derivative is dispersed in said ice-melting composition in the range of 0.45% to 0.55% by weight.
Claim 13
Dependent Claim
27 words
An ice-melting composition in accordance with claim 6, wherein said alkyl amine is dispersed in said ice-melting composition in the range of 0.20% to 1% by weight.
Claim 14
Dependent Claim
27 words
An ice-melting composition in accordance with claim 6, wherein said alkyl amine is dispersed in said ice-melting composition in the range of 0.45% to 0.55% by weight.
Claim 15
Dependent Claim
26 words
An ice-melting composition in accordance with claim 6, wherein said oximine is dispersed in said ice-melting composition in the range of 0.20% to 1% by weight.
Claim 16
Dependent Claim
26 words
An ice-melting composition in accordance with claim 6, wherein said oximine is dispersed in said ice-melting composition in the range of 0.45% to 0.55% by weight.
Claim 17
Dependent Claim
27 words
An ice-melting composition in accordance with claim 6, wherein said aryl amine is dispersed in said ice-melting composition in the range of 0.20% to 1% by weight.
Claim 18
Dependent Claim
27 words
An ice-melting composition in accordance with claim 6, wherein said aryl amine is dispersed in said ice-melting composition in the range of 0.45% to 0.55% by weight.
Claim 19
Dependent Claim
27 words
An ice-melting composition in accordance with claim 6, wherein said thiourea derivative is dispersed in said ice-melting composition in the range of 0.20% to 1% by weight.
Claim 20
Dependent Claim
27 words
An ice-melting composition in accordance with claim 6, wherein said thiourea derivative is dispersed in said ice-melting composition in the range of 0.45% to 0.55% by weight.
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) | 1997-11-21 | 1998-05-23 | 1998-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-21 | 2002-05-23 | 2002-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-21 | 2006-05-23 | 2006-11-22 | $7700.00 | Window Closed / Lapsed |