Use of cellulose derivatives as foam regulators
First Claim
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1. A method of reducing the foaming of cleaning compositions in liquid solutions, said method comprising the step of incorporating in the solution at least one cellulose derivative which is obtainable by alkylation and hydroxyalkylation of cellulose and which has an average of from 0.5 to 2.5 alkyl groups and from 0.02 to 0.5 hydroxyalkyl groups per anhydroglycose monomer unit.
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Abstract
Cellulose derivatives, obtained by the alkylation and hydroxyalkylation of cellulose, which contribute to a reduction of the foaming properties of cleaning agents or detergents when used in aqueous cleaning or detergent solutions.
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20 Claims
- 1. A method of reducing the foaming of cleaning compositions in liquid solutions, said method comprising the step of incorporating in the solution at least one cellulose derivative which is obtainable by alkylation and hydroxyalkylation of cellulose and which has an average of from 0.5 to 2.5 alkyl groups and from 0.02 to 0.5 hydroxyalkyl groups per anhydroglycose monomer unit.
- 7. A method of reducing the foaming of liquid solutions comprising detergents during machine washing of textiles, said method comprising the step of incorporating at least one cellulose derivative which is obtainable by alkylation and hydroxyalkylation of cellulose.
- 11. A method of reducing the foaming of a liquid solution comprising a laundry detergent formed from at least one ingredient selected from the group consisting of active enzymatic ingredients, water-insoluble inorganic builders, water-soluble inortanic and organic builders, per-oxygen bleaches, non-ionic surfactants, synthetic sulfate- and sulfonate-type anionic surfactants, and graying inhibitors, the method comprising the step of incorporating in the detergent at least one cellulose derivative which is obtainable by alkylation and hydroxyalkylation of cellulose.
- 15. A particulate free-flowing foam regulating composition containing from 0.5% by weight to 30% by weight of cellulose derivative which is obtainable by alkylation and hydroxyalkylation of cellulose, adsorbed on from 70% by weight to 99.5% by weight of a water-soluble or water-dispersible, inorganic and/or organic support material.
Specification