Cast solid block corrosion inhibitor composition
First Claim
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1. A composition comprising:
- (a) about 5 to 20 wt-% silicate, calculated as sodium metasilicate pentahydrate;
(b) about 70 to 90 wt-% borate, calculated as sodium tetraborate pentahydrate;
(c) about 0.5 to 5 wt-% polymeric dispersant; and
(d) about 10 to 30 wt-% water;
the composition being substantially free of any nitrite or nitrate salts, and cast into a solid block.
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Abstract
A solid cast block of corrosion inhibitor composition, comprising: (i) about 5 to 20 wt-% silicate, calculated as sodium metasilicate pentahydrate; (ii) about 5 to 90 wt-% borate, calculated as sodium tetraborate pentahydrate; (iii) about 0.5 to 5 wt-% polymeric dispersant such as polyacrylamide; and (iv) a sufficient solidifying amount of water.
36 Citations
4 Claims
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1. A composition comprising:
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(a) about 5 to 20 wt-% silicate, calculated as sodium metasilicate pentahydrate; (b) about 70 to 90 wt-% borate, calculated as sodium tetraborate pentahydrate; (c) about 0.5 to 5 wt-% polymeric dispersant; and (d) about 10 to 30 wt-% water;
the composition being substantially free of any nitrite or nitrate salts, and cast into a solid block. - View Dependent Claims (2, 3, 4)
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Specification
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Current AssigneeAshland Licensing and Intellectual Property Llc
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Original AssigneeDrew Chemical Corporation
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InventorsEtienne, Guillermo C., Ciuba, Stanlay J.
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Primary Examiner(s)Terapane, John F.
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Assistant Examiner(s)Geist, Gary L.
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Application NumberUS07/333,872Time in Patent Office372 DaysField of Search252/389.3, 252/389.4, 252/387, 252/8.552, 252/8.555, 422/18US Class Current252/389.3CPC Class CodesC23F 11/08 in other liquids
