α-olefin/vinyl or vinylidene aromatic interpolymer product and process for making same using multiple catalyst systems

A pseudorandom interpolymer product comprising an α-olefin interpolymerized with at least one vinyl or vinylidene aromatic monomer or hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer, wherein the product comprises

• (1) from 27 to 46 mol percent of polymer units derived from
• (i) the vinyl or vinylidene aromatic monomer represented by the following formula:
• wherein R1 is selected from the group of radicals consisting of hydrogen and alkyl radicals containing from about 1 to about 4 carbon atoms;
• each R2 is independently selected from the group of radicals consisting of hydrogen and alkyl radicals containing from about 1 to about 4 carbon atoms;
• Ar is a phenyl group or a phenyl group substituted with from about 1 to about 5 substituents selected from the group consisting of halo, C1-4-alkyl, and C1-4 haloalkyl;
• and n has a value from zero to about 4;
• or
• (ii) the hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer is represented by the following general formula;
• wherein A1 is a sterically bulky aliphatic or cycloaliphatic substituent of up to 20 carbons, R1 is selected from the group of radicals consisting of hydrogen and alkyl radicals containing from 1 to 4 carbon atoms;
• each R2 is independently selected from the group of radicals consisting of hydrogen and alkyl radicals containing from 1 to 4 carbon atoms;
• or alternatively R1 and A1 together form a ring system;
• and
• (2) from 54 to 73 mol percent of polymer units derived from the α-olefin which comprises ethylene, or ethylene and at least one of propylene, 4-methyl-1-pentene, butene-1, hexene-1 and octene-1,
• wherein the interpolymer product is characterized as having:
• A) a melting point, as determined using differential scanning calorimetry, equal to or greater than the product of the equation:
• melting point=128−1.3333×total weight percent interpolymerized vinyl and/or vinylidene aromatic monomer, or
• B) a glass transition temperature range or width at half peak temperature height of greater than or equal to 15° C., as determined using dynamic mechanical spectroscopy (DMS) loss modulus (G″) data.