Aqueous polymer dispersions suitable as opacifiers in liquid formulations
AssigneeBASF SE
InventorsRoland Ettl, Thomas Weiss, Volker Kreider, Frank Dietsche, Aaron Wagner
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Abstract
Described herein is a method of using aqueous polymer dispersions, which are obtainable by radical aqueous emulsion polymerization in the presence of a degraded starch as an opacifier in liquid formulations. Also described herein is a process for producing the aqueous polymer dispersions. Also described herein are liquid formulations, such as detergent formulations and liquid cosmetic preparations, which contain at least one aqueous polymer dispersion.
Claims20
A method of using an aqueous polymer dispersion, which is obtainable by radical aqueous emulsion polymerization of
- i) ethylenically unsaturated monomers M comprising
- a) at least 70% by weight, based on the total weight of monomers M, of at least one monomer Ma, selected from the group consisting of monovinylaromatic monomers, and optionally
- b) up to 30% by weight, based on the total weight of monomers M, of one or more ethylenically unsaturated monomers Mb, which are different from the monomer Ma;
- in the presence of
- ii) 80 to 300% by weight, based on the total amount of monomers M, of a degraded starch;
- the method comprising using the aqueous polymer dispersion as an opacifier in liquid formulations.
An aqueous polymer dispersion, which is obtainable by radical aqueous emulsion polymerization of
- i) ethylenically unsaturated monomers M comprising
- a) at least 80% by weight, based on the total weight of monomers M, of at least one monomer Ma, selected from the group consisting of monovinylaromatic monomers, and optionally
- b) up to 20% by weight, based on the total weight of monomers M, of one or more ethylenically unsaturated monomers Mb, which are different from the monomer Ma;
- in the presence of
- ii) 80 to 300 200% by weight, based on the total amount of monomers M, of a degraded starch.
Dependencies are inferred from the claim text.