A method for continuously polymerizing mass polimezclasque have a dispersed rubber phase in departiculas diene rubber form

摘要

In the process of the invention, first and second monomerrubber solutions are fed to a first back-mixed polymerization zone such that the first solution forms particles of about 0.5 to 1.5 microns and the second solution, having present a dissolved tubber and a dissolved polymer of said monomer, forms particles of about 2 to 10 microns during partial polymerization of 10 to 50% of the monomers. The partially polymerized solutions are further polymerized in a second zone, with linear flow, to a conversion of 20 to 95%, forming a polyblend with a bimodal rubber particle size distribution having improved toughness and gloss.