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US 10,954,399 B2Granted
Addition of caustic soda for improving detackifier stability
AssigneeEcolab USA Inc.
InventorsJosé Rafael Hernández Carucci, Joseph Peter Miknevich
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Abstract
The present disclosure provides stable, low chloride paint detackifier compositions. Also disclosed are methods of making the paint detackifier compositions and methods of using the paint detackifier compositions. The detackifier may be made from cationized starch and sodium aluminate. The starch can be wheat starch, corn starch, tapioca starch, potato starch, rice starch, sweet potato starch, sago starch, mung bean starch, arrowroot starch, and any combination thereof.
Claims20
A composition for detackifying paint, comprising:
- a cationized starch;
- a solution of sodium aluminate;
- and
- caustic soda;
- wherein a concentration of chloride in the composition is less than or equal to about 30,000 ppm, and wherein a ratio of weight % Na2O to weight % Al2O3 in the composition is from about 0.5 to about 2.5.
2 more elements
A method of preparing a composition for detackifying paint, comprising:
- heating starch to form a starch solution;
- adjusting a pH of the starch solution to a value greater than about 12;
- adding a cationizing agent;
- heating the starch solution containing the cationizing agent;
- adding caustic soda;
- and
- adding a solution of sodium aluminate, wherein the composition comprises less than or equal to about 30,000 ppm chloride.
4 more elements
Dependencies are inferred from the claim text.