Chlorinated solid rinse aid
AssigneeEcolab Inc.
InventorsElizabeth J. Gladfelter, James L. Copeland, Stephen A. Morganson, Keith Olson
Life of this patent
Estimating the term…
Abstract
The invention relates to rinse aid compositions useful in warewashing, that provide sanitizing properties and stain control. The rinse aids of the invention provide a highly active available chlorine source which is incorporated into solid systems containing sheeting agents. The chlorine source is sufficiently stable to permit manufacture, storage, distribution, sale and consumption without loss of substantial proportions of active chlorine, while allowing for a broad selection of surfactants.
Claims52
A solid chlorinated rinse aid concentrate, suitable for dispensing into an aqueous rinse composition useful for rinsing ware after a wash cycle, said concentrate comprising:
- (a) a continuous organic solid phase comprising about 10-90 wt-% of a low foaming polyoxyalkylene surfactant;
- and
- (b) about 5-60 wt-%, each percentage based on the rinse concentrate, of an encapsulate dispersed throughout said organic solid phase comprising an encapsulate layer and a core comprising an active chlorine compound, wherein said encapsulate is substantially stable in the presence of said polyoxyalkylene surfactant providing stain control or sanitization with an effective rinsing-sheeting action.
A solid, cast, chlorinated rinse aid concentrate, suitable for dispensing into an aqueous rinse composition useful for rinsing ware after a wash cycle, said concentrate comprising:
- (a) about 20-70 wt-% of a low foaming polyoxyalkylene surfactant;
- and
- (b) about 10-50 wt-%, each percentage based on the rinse concentrate, of an encapsulated source of active chlorine;
- and
- (c) about 1-30 wt-% of a diluent organic carrier;
- wherein said encapsulate is substantially stable in the presence of said organic carrier and polyoxyalkylene surfactant providing stain control or sanitization with an effective rinsing-sheeting action.
A solid, cast, chlorinated rinse aid concentrate, suitable for dispensing into an aqueous rinse composition useful for rinsing ware after a wash cycle, said concentrate comprising:
- (a) about 20-70 wt-% of a low foaming polyoxyalkylene surfactant;
- and
- (b) about 10-50 wt-% of an encapsulate;
- and
- (c) about 0.1 to 20 wt-% of a hydrotrope solubilizer for the surfactant;
- (d) about 0.1 to 30 wt-% of a polyalkylene glycol carrier;
- and
- (e) about 0.1 to 10 wt-%, each percentage based on the concentrate of a sequestrant,
- wherein said encapsulate comprises an encapsulate layer and a core comprising an active chlorine compound and said encapsulate is substantially stable in the presence of said surfactant and carrier providing stain control or sanitization with an effective rinsing-sheeting action.
Dependencies are inferred from the claim text.