| abstract |
An aqueous polymerization process for the preparation of an aqueous polymer dispersion is provided. The present invention relates to a method for preparing an aqueous polymer dispersion containing polymer particles dispersed in an aqueous medium. The method includes providing a first polymer particle; adding a hydrophobic polymer blocker or a styrene monomer polymer blocker to an aqueous medium containing the first polymer particle; and a second polymer particle in the presence of the first polymer particle. The process of preparing. The aqueous polymer dispersion comprises first and second polymer particles that differ in at least one attribute, such as particle diameter, molecular weight, composition, glass transition temperature, or morphology, or have a wide polydispersity. Including. The aqueous polymer dispersions prepared by the method of this invention are useful in a wide range of applications including paints, adhesives, nonwoven binders, and paper coating binders. [Selection figure] None |