AQUEOUS COMPOSITION COMPRISING IONIC POLYMER AND VISCOSITY-PROMOTING ADDIT IVE, METHOD OF APPLYING AQUEOUS COMPOSITION-BASED COATING ON PAPER, AND CO ATED PAPER Russian patent published in 2004 - IPC

FIELD: papermaking. SUBSTANCE: invention relates to rheology modifiers intended attaining thickening effect and controlling outflow and retention of water as well as other properties of aqueous systems. Application describes aqueous compositions showing improved rheological properties preferably including those with improved flow stress, improved viscosity, and improved moisture retention capacity. Such compositions include low-viscosity compositions showing high flow stress. Compositions according to present invention are aqueous compositions of polymer possessing common ionic charge and viscosity-promoting additive possessing opposite common ionic charge. Composition may further contain inhibiting additive to prevent sedimentation and/or gelation. EFFECT: improved performance characteristics of compositions. 75 cl, 26 tbl, 10 ex