Aqueous composition having anionic organic polymeric particles and colloidal anionic silica-based particles

摘要

An aqueous composition comprising anionic organic polymeric particles and colloidal anionic silica-based particles is disclosed. The anionic organic polymeric particles are obtained by polymerising one or more ethylenically unsaturated monomers together with one or more polyfunctional branching agents and/or polyfunctional crosslinking agents. The anionic organic polymeric particles and the colloidal anionic silica-based particles in the aqueous composition are present in an amount of at least 0.01% by weight based on the total weight of the aqueous composition. Further disclosed is a method for the preparation of the aqueous composition; uses of the aqueous composition; and a process for the production or paper, in which the aqueous composition is added to a cellulosic suspension.