A RUBBER MODIFIED MONOVINYLIDENE AROMATIC POLYMER AND A PROCESS FOR PRODUCING THE SAME
Application 1821/MAS/1998 published 2006-10-20, filed 1998-08-12
The present invention is a rubber modified monovinylidene aromatic polymer having a bimodal particle size distribution comprising: a) rubber particles of a star or branched low viscosity rubber having a volume average particle size of from 0.1 to 2m, and a cellular or core shell morphology or mixture thereof, and b) rubber particles of a star or branched low viscosity rubber, linear diene rubber or block copolymer rubber having a volume average particle size of from 0.5 to 10m, characterized in that the rubber particles of b) are more dense than the rubber particles of a), having a smaller occluded monovinylidene aromatic polymer content than the particles of a),wherein the particles of a) are from 50 to 99 weight percent of the total diene rubber content.
Applicant
DOW GLOBAL TECHNOLOGIES INC.
WASHINGTON STREET, 1790 BUILDING, MIDLAND, MICHIGAN 48674,, USA
Inventor
International Info
Classification: C 08 F 279/02
Publication Number:
Priority Information
60/055,507 US 1997-08-13