Method of reducing syneresis in aqueous compositions
OwnerJerome M. Harris, James W. Neelyinventors
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Abstract
A method for reducing or eliminating syneresis in an aqueous latex composition caused by the flocculation of the latex particles as a result of interaction with hydrophobically modified ethylene oxide based urethane rheology modifiers. The method of the invention involves adding to the aqueous latex composition a molecule containing a single hydrophobic moiety which has a poly-ethylene oxide backbone chain-length of greater than about 5000 Mn. The method of the present invention also increases the viscosity efficiency of the aqueous latex composition by combining a multiphobe with a monophobe.
Claims10
In an aqueous composition containing thickeners, a method of reducing syneresis and increasing the viscosity efficiency in said composition comprising adding to said composition a high molecular weight monophobe, said monophobe comprising at least one hydrophilic segment and only one hydrophobic segment.
Dependencies are inferred from the claim text.