BLENDS OF alpha -OLEFIN/VINYLIDENE AROMATIC MONOMER AND/OR HINDERED ALIPHATIC OR CYCLOALIPHATIC VINYLIDENE MONOMER INTERPOLYMERS

摘要

Blends of polymeric materials comprising a plurality of interpolymers each having (1) from 0.5 to 65 mole percent of either (a) at least one vinylidene aromatic monomer or (b) at least one hindered aliphatic or cycloaliphatic vinylidene monomer, or (c) a combination of at least one vinylidene aromatic monomer and at least one hindered aliphatic vinylidene monomer, and (2) from 35 to 99 mole percent of at least one aliphatic alpha olefin having from 2 to 20 carbon atoms; and wherein interpolymer components differ in that (i) the amount of vinylidene aromatic monomer residue and/or hindered aliphatic or cycloaliphatic vinylidene monomer residue in any interpolymer component differs from another by at least 0.5 mole percent; and/or (ii) there is a difference of at least 20 percent between the number average molecular weight (Mn) of interpolymer components. These blends of interpolymer components give enhanced properties or processability when compared to the individual polymers comprising the blend.