Patent ID: 7812115

Claim:
A method for preparing a high molecular weight latex resin powder, the method comprising the steps of: (a) stabilizing a high molecular weight latex by adding an emulsifying agent; (b) transferring the stabilized high molecular weight latex into a primary coagulation tank, along with a coagulant and water, through underflow to prepare a slurry by coagulation, a colloidal modifier being added to a highest viscosity area of the coagulation tank; (c) transferring the slurry to a stabilization tank through overflow and stabilizing the slurry in the stabilization tank for a predetermined period of time while stirring the slurry, the stabilization tank being separated from the coagulation tank; (d) transferring the stabilized slurry to a secondary coagulation tank through overflow and coagulating the slurry in the secondary coagulation tank by adding a coagulant through underflow, a colloidal modifier being added to a highest viscosity area of the secondary coagulation tank; (e) transferring the coagulated slurry to an aging tank through overflow and aging the slurry in the aging tank; (f) transferring the aged slurry into a dehydration tank through overflow and separating a working solution; and (g) transferring the separated working solution into the primary coagulation tank of (b).