NEW CORE SHELL PARTICLE MULTISTAGE POLYMER POWDER, ITS MANUFACTURING PROCESS AND COMPOSITION COMPRISING IT

摘要

THE PRESENT INVENTION RELATES TO NEW IMPACT MODIFIERS AND A PROCESS FOR MAKING THESE NEW IMPACT MODIFIERS AND THEIR USE IN POLYMERIC COMPOSITIONS. MORE PARTICULARLY THE PRESENT INVENTION RELATES TO A NEW POLYMERIC IMPACT MODIFIER WITH A CORE-SHELL STRUCTURE MADE BY A MULTISTAGE POLYMERIZATION PROCESS COMPRISING AT LEAST ONE GRADIENT POLYMER. THE PRESENT INVENTION RELATES AS WELL TO A PROCESS PREPARING SUCH AN IMPACT MODIFIER, ESPECIALLY ITS RECOVERY PROCESS AFTER THE END OF THE POLYMERIZATION. THE PRESENT INVENTION ALSO RELATES TO A THERMOPLASTIC COMPOSITION COMPRISING THE NEW IMPACT MODIFIER. (NO SUITABLE