Aqueous vinyl polymer dispersion emulsified with an alkane phosphonic acid derivative
AssigneeHoechst Aktiengesellschaft
InventorErnst Nolken
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Abstract
Vinyl polymers are prepared by emulsion polymerization of olefinically unsaturated compounds in the presence of surface-active compounds. As emulsifiers there are particularly suitable water-soluble salts of alkane phosphonic acids or of alkane phosphonic acid-monoalkyl esters. Said salts may also be used in combination with other surface-active compounds. The plastics dispersion obtained is used above all as a binder for pigments and fillers in dispersion paints.
Claims8
An aqueous plastics dispersion containing a vinyl polymer and an emulsifier wherein the emulsifier is a water-soluble salt of an alkane-phosphonic acid of the formula ##STR3## or of an alkane phosphonic acid monoalkyl ester of the formula ##STR4## or a mixture of such salts and wherein:
- R is an alkyl radical of 6 to 24 carbon atoms which may be substituted by a phenyl, hydroxyl or carboxyl radical, and R.sup.1 is an alkyl radical of 1 to 8 carbon atoms.
An aqueous plastics dispersion containing a vinyl polymer and an emulsifier wherein the emulsifier is a water-soluble salt of an alkane-phosphonic acid of the formula ##STR7## or of an alkane phosphonic acid monoalkyl ester of the formula ##STR8## or a mixture of such salts and wherein:
- R is an alkyl radical of 6 to 24 carbon atoms which may be substituted by phenyl or hydroxyl and R.sup.1 is an alkyl radical of 1 to 8 carbon atoms.
An aqueous plastics dispersion containing a vinyl polymer and an emulsifier wherein the emulsifier is a water-soluble salt of an alkane-phosphonic acid of the formula ##STR9## or of an alkane phosphonic acid monoalkyl ester of the formula ##STR10## or a mixture of such salts and wherein:
- R is an unsubstituted alkyl radical of 6 to 24 carbon atoms, and R.sup.1 is an alkyl radical of 1 to 8 carbon atoms.
Dependencies are inferred from the claim text.