Patent US5135674A successfully refreshed from Google Patents.
US5135674A
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US
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Sodium chloride deicer composition having gelling agent additive to minimize spalling of concrete
Assignee: Morton Salt Inc
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Filing: 1991-02-20
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Granted: 1992-08-04
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Expires: 2011-02-20
Abstract
Abstract A deicer composition contains a deicing compound plus between about 0.5 and about 5.0 weight percent of a gelling agent, such as hydroxyethyl cellulose, to minimize spalling of concrete to which the deicer composition is applied.
Inventors
- 👤 Eugene J. Kuhajek
- 👤 Kurt J. Waatti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:28
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/18; C09K3/185
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
74 words
A dry, free-flowing deicing composition consisting essentially of sodium chloride in particulate form and between about 0.5 and about 5.0 weight percent of a gelling agent based upon the weight of said sodium chloride, said gelling agent being selected from the group consisting of hydroxyethyl cellulose; hydroxypropyl methylcellulose; hydroxypropyl guar and mixtures thereof, said gelling agent being in powder form and exclusively adhered to the external surfaces of the particulates of said sodium chloride.
Claim 2
Dependent Claim
74 words
A dry, free-flowing deicing composition consisting essentially of sodium chloride in particulate form and between about 0.5 and about 5.0 weight percent of a gelling agent based upon the weight of said sodium chloride, said gelling agent being selected from the group consisting of hydroxyethyl cellulose; hydroxypropyl methylcellulose; hydroxypropyl guar and mixtures thereof, said gelling agent being in powder form and exclusively adhered to the external surfaces of the particulates of said sodium chloride.
Claim 3
Dependent Claim
14 words
A deicing composition according to claim 1 wherein said gelling agent is hydroxyethyl cellulose.
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) | 1995-08-04 | 1996-02-03 | 1996-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-04 | 2000-02-03 | 2000-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-04 | 2004-02-03 | 2004-08-04 | $7700.00 | Window Closed / Lapsed |