Process of reducing syneresis and increasing viscosity efficiency in an aqueous composition containing thickeners

摘要

"PROCESS OF REDUCING SYNERESIS AND INCREASING EFFICIENCY OF VISCOSITY IN A WATER COMPOSITION CONTAINING THICKENERS". Process for reducing or eliminating syneresis in aqueous latex composition caused by the flocculation of latex particles as a result of interaction with urethane rheology modifiers based on hydrophobically modified ethylene oxide. The process of the invention involves adding to the aqueous latex composition a molecule containing a single hydrophobic half that has a main support chain extension of polyethylene oxide greater than about 5000 MN. The process of the present invention also increases the viscosity efficiency of the aqueous latex composition by combining multifob with monophobe.