ERROR-CORRECTING WATER BASED-FLUIDS Russian patent published in 2001 - IPC

FIELD: chemical industry. SUBSTANCE: described is error-correcting water based opacity sustaining pigment, cationic agent, blocking pigment and water. Cationic agent is polymer selected from group consisting of ABCO E-700 based on poly(aminoalkylmethacrylate)hydrosol containing 20-30 wt % of monomers with amino group and 15-25 wt % of solids or WORLEECRYL based on ethyl acrylate, methylacrylate and dimethyl aminoethyl methacrylate, and pigment is mixture of clay with titanium dioxide at weight ratio from 0.6:1 to 0.8:1 when cationic agent is ABCO- polymer, and from 0.7:1 to 1.2:1, when cationic agent is WORLTTCRYL- polymer. Error correcting fluid has improved resistance to lubrication and good coating power. EFFECT: improved properties of the error- correcting fluid. 11 cl, 2 dwg, 2 ex