Concentrated glass cleaning compositions in unit dose packets or pouches
AssigneeKorex Canada Company
InventorsDouglas Robert Watson, Sanford Pensler
Life of this patent
Estimating the term…
Abstract
A unit dose glass cleaner concentrate product includes from 5 grams to 50 grams of a concentrated glass cleaning composition encased in a water soluble film. The concentrated glass cleaning composition includes at least one cleaning solvent and at least one surfactant. The total weight percentage of the cleaning solvents and surfactants, expressed on an anhydrous basis, is at least 50% of the weight of the unit dose window cleaner concentrate product. The unit dose glass cleaner concentrate product can be added to a container and diluted to produce a glass cleaning solution.
Claims20
A unit dose glass cleaner concentrate product comprising from 5 grams to 50 grams of a concentrated glass cleaning composition encased in a water soluble film, the concentrated glass cleaning composition comprising a plurality of cleaning solvents, at least one surfactant, water, and at least one preservative;
- wherein:
- the plurality of cleaning solvents comprises at least one safer cleaning solvent, a first glycol ether solvent, and a second glycol ether solvent, wherein the at least one safer cleaning solvent is selected from the group consisting of ethyl levulinate glycerol ketal, ethyl levulinate propylene glycol ketal, soybean oil methyl esters, canola oil methyl esters, butyl 3-hydroxybutyrate, gamma-valerolactone, 2-methytetrahydrofuran, cyclopentylmethylether, and combinations of these;
- a weight percentage of the first glycol ether solvent is greater than or equal to 30 wt. % based on the total weight of the concentrated glass cleaning composition;
- a weight percentage of the second glycol ether solvent is greater than or equal to 30 wt. % based on the total weight of the concentrated glass cleaning composition;
- and
- the total weight percentage of the plurality of cleaning solvents and the at least one surfactant, expressed on an anhydrous basis, is at least 75% of the weight of the unit dose glass cleaner concentrate product.
A unit dose glass cleaner concentrate product consisting of from 5 grams to 50 grams of a concentrated glass cleaning composition encased in a water soluble film, wherein the concentrated glass cleaning composition consists of:
- greater than or equal to 30 wt. % of a first glycol ether solvent based on the total weight of the concentrated glass cleaning composition;
- greater than or equal to 20 wt. % of a second glycol ether solvent based on the total weight of the concentrated glass cleaning composition;
- at least one surfactant;
- water;
- at least one preservative;
- and
- optionally, at least one additive selected from the group consisting of a pH control agent, a chelant, a chelating polymer, a dispersive polymer, a surface modification polymer, an enzyme, a colorant, a fragrance, and combinations thereof.
A unit dose glass cleaner concentrate product comprising:
- from 5 grams to 50 grams of a concentrated glass cleaning composition encased in a water soluble film, the concentrated glass cleaning composition comprising a plurality of cleaning solvents, at least one surfactant, water, and at least one preservative;
- wherein:
- the plurality of cleaning solvents comprises at least one glycol ether solvent and at least one safer cleaning solvent selected from the group consisting of ethyl levulinate glycerol ketal, ethyl levulinate propylene glycol ketal, soybean oil methyl esters, canola oil methyl esters, butyl 3-hydroxybutyrate, gamma-valerolactone, 2 methytetrahydrofuran, cyclopentylmethylether, and combinations thereof;
- a weight percentage of the at least one glycol ether solvent is greater than or equal to 30 wt. % based on the total weight of the concentrated glass cleaning composition;
- a weight percentage of the water is less than 5 wt. % based on the total weight of the concentrated glass cleaning composition;
- and
- the total weight percentage of the plurality of cleaning solvents and surfactants, expressed on an anhydrous basis, is at least 75% of the weight of the unit dose glass cleaner concentrate product.
Dependencies are inferred from the claim text.