Abstract: A multimodal polymer particle composition containing two or more populations of polymer particles having a total rubbery weight fraction of less than 90 weight percent is provided. Also disclosed is a process for preparing multimodal polymer particle compositions that can be dried to a powder. Multimodal polymer particle dispersions are disclosed for preparing impact modifiers that can be dried to a powder. Also provided are polymeric compositions having a matrix resin component and impact modifiers prepared from multimodal polymer particles.
Type:
Grant
Filed:
December 2, 2002
Date of Patent:
April 26, 2005
Assignee:
Rohm and Haas Company
Inventors:
Raymond Gerard Hamilton, Morris Christopher Wills, Jennifer Lynn Petoff, Joseph Robert Adamo