US Patent 9102902 Foam stabilization and oily soil removal with associative thickeners

The invention involves foam stabilization compositions that rely upon anonionic/hydrophobic interaction. According to the invention, an associative thickener is used to provide long range nonionic/hydrophobic interaction with the hydrophobic groups of the surfactants present in the same. The interaction must be of sufficient character so that the components can maintain long range intermolecular networking, causing longer lasting and increased foam production, even in the presence of hydrophobic/oily soils. The system provides an environmentally friendly alternative for traditional foaming enhancers such as cocamide DEA.