US5482639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ice melter with coating of alpha-methyl glucosine mixture and method of making same
Assignee: North American Salt Co
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Filing: 1994-06-08
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Granted: 1996-01-09
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Expires: 2014-06-08
Abstract
Abstract In an improved ice melter comprising an alpha-methyl glucoside and method of making same, an ice melter, as disclosed in U.S. Pat. No. 4,960,531 is further improved in respect to providing improved melting capabilities by providing a substantially uniform coating of alpha methyl glucoside-urea mixture the potassium chloride substrate of a potassium chloride and sodium chloride salt mixture or providing a substantially uniform coating of alpha methyl glucoside-urea mixture to both potassium and sodium chloride salt mixture. The improved invention also includes the method of making the composition which includes the steps for example, of (1) heating a solution of alpha-methyl glucoside; (2) adding urea to the heated alpha-methyl glucoside; (3) heating methyl glucoside and urea mixture; (4) applying the heated alpha methyl-glucoside and urea mixture to potassium chloride; and (5) adding sodium chloride to the potassium chloride.
Inventors
- 👤 Michael J. Archer
- 👤 Michael S. Adams
- 👤 Jeffrey A. Tauri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:02
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/18; C09K3/185
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
70 words
A method of making an ice melter composition including a salt combination of potassium chloride, sodium chloride and urea and a trigger comprising the steps of: (1) heating a solution of alpha-methyl glucoside of the formulation; ##STR2## (2) adding urea to heated alpha-methyl glucoside; (3) heating alpha methyl glucoside mixture-urea; (4) applying the heated alpha methyl glucoside-urea mixture to potassium chloride; and (5) adding sodium chloride to the potassium chloride.
Claim 2
Independent Claim
70 words
A method of making an ice melter composition including a salt combination of potassium chloride, sodium chloride and urea and a trigger comprising the steps of: (1) heating a solution of alpha-methyl glucoside of the formulation; ##STR2## (2) adding urea to heated alpha-methyl glucoside; (3) heating alpha methyl glucoside mixture-urea; (4) applying the heated alpha methyl glucoside-urea mixture to potassium chloride; and (5) adding sodium chloride to the potassium chloride.
Claim 3
Dependent Claim
21 words
The method of claim 1 wherein said heating of methyl glucoside is done at temperatures between 140 and 160 degrees Fahrenheit.
Claim 4
Dependent Claim
25 words
The method of claim 1 wherein said adding urea is added at a ratio of 3 parts urea to 10 parts 50% alpha methyl glucoside.
Claim 5
Dependent Claim
37 words
The method of claim 1 wherein in applying the methyl glucoside and urea mixture to the potassium chloride the methyl glucoside and urea mixture is applied while being held at the maximum temperature of 160 degrees Fahrenheit.
Claim 6
Dependent Claim
24 words
The method of claim 1 in applying the heated methyl glucoside and urea mixture, wherein the glucoside-urea mixture is sprayed on said potassium chloride.
Claim 7
Dependent Claim
15 words
The method of claim 1 wherein the urea has a maximum 0.5% anti-sticking agent added.
Claim 8
Dependent Claim
27 words
The method of claim 1 wherein a 0.835% alpha methyl glucoside and a 0.5% urea proportion of the methyl glucoside-urea mixture is applied to said potassium chloride.
Claim 9
Independent Claim
71 words
The method of making an ice melter composition including a salt combination of chlorides, urea and a trigger comprising the steps of: (1) heating a solution of alpha methyl glucoside of the formulation ##STR3## (2) adding urea to heated alpha methyl glucoside; (3) heating said alpha methyl glucoside and urea mixture; and (4) applying said heated alpha methyl glucoside and urea mixture to a combination of sodium chloride and potassium chloride.
Claim 10
Independent Claim
71 words
The method of making an ice melter composition including a salt combination of chlorides, urea and a trigger comprising the steps of: (1) heating a solution of alpha methyl glucoside of the formulation ##STR3## (2) adding urea to heated alpha methyl glucoside; (3) heating said alpha methyl glucoside and urea mixture; and (4) applying said heated alpha methyl glucoside and urea mixture to a combination of sodium chloride and potassium chloride.
Claim 11
Dependent Claim
29 words
The method of claim 8 wherein a 0.835% alpha methyl glucoside and a 0.500% urea proportion of the methyl glucoside urea mixture is applied to the combination of chlorides.
Claim 12
Dependent Claim
21 words
The method of claim 8 wherein said heating of methyl glucoside is done at temperatures between 140 and 160 degrees Fahrenheit.
Claim 13
Dependent Claim
26 words
The method of claim 8 wherein said adding of urea is done at a ratio of 3 parts urea to 10 parts 50% alpha methyl glucoside.
Claim 14
Dependent Claim
38 words
The method of claim 14 wherein when applying the methyl glucoside and urea mixture to the combination of chlorides the methyl glucoside and urea mixture is applied while being held at the maximum temperature of 160 degrees Fahrenheit.
Claim 15
Dependent Claim
32 words
The method of claim 8 wherein in applying the heated alpha methyl glucoside and urea mixture, said alpha methyl glucoside-urea mixture is sprayed on the combination of sodium chloride and potassium chloride.
Claim 16
Dependent Claim
15 words
The method of claim 8 wherein the urea has a maximum 0.5% anti-stiking agent added.
Claim 17
Independent Claim
102 words
A method of making an ice melter composition including a salt combination and trigger enhancing agent, said trigger comprising alpha-methyl glucoside of the formulation ##STR4## said salt combination includes a mixture of granular sodium chloride and granular potassium chloride, said alpha-methyl glucoside substantially coating said salt combination of granular sodium chloride and granular potassium chloride comprising the steps of: (1) heating a solution of said alpha-methyl glucoside; (2) adding urea to said heated alpha methyl glucoside; (3) heating said alpha methyl glucoside-urea mixture; (4) applying said heated alpha methyl glucoside-urea mixture to said granular sodium chloride and to said granular potassium chloride.
Claim 18
Independent Claim
102 words
A method of making an ice melter composition including a salt combination and trigger enhancing agent, said trigger comprising alpha-methyl glucoside of the formulation ##STR4## said salt combination includes a mixture of granular sodium chloride and granular potassium chloride, said alpha-methyl glucoside substantially coating said salt combination of granular sodium chloride and granular potassium chloride comprising the steps of: (1) heating a solution of said alpha-methyl glucoside; (2) adding urea to said heated alpha methyl glucoside; (3) heating said alpha methyl glucoside-urea mixture; (4) applying said heated alpha methyl glucoside-urea mixture to said granular sodium chloride and to said granular potassium chloride.
Claim 19
Dependent Claim
23 words
The method of claim 15 wherein said trigger is present in an amount from about 0.5% to about 3% weight of the composition.
Claim 20
Dependent Claim
11 words
The method of claim 15 wherein said salt combination includes urea.
Claim 21
Dependent Claim
15 words
The method of claim 17 wherein said urea has a maximum 0.5% anti-sticking agent included.
Claim 22
Dependent Claim
27 words
The method of claim 15 wherein said salt combination is about 3 parts by weight of sodium chloride and about 1 part by weight of potassium chloride.
Claim 23
Dependent Claim
22 words
The method of claim 17 wherein said urea is present in from 0.8% to about 1.1% by weight of the salt combination.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1999-01-08 | 1999-07-10 | 2000-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-01-08 | 2003-07-10 | 2004-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-01-08 | 2007-07-10 | 2008-01-09 | $7700.00 | Window Closed / Lapsed |