Patent ID: 7053153

Claim:
A process for making a solid polymer composition, the process comprising: (a) copolymerizing ethylene and a first comonomer component comprising at least one monomer selected from the group consisting of C 3 to C 20 alpha olefins under solution phase conditions and in the presence of a metallocene catalyst in a first reactor to form an effluent comprising a first copolymer; (b) directing the effluent to a second reactor in series with the first reactor; (c) copolymerizing ethylene and a second comonomer component comprising at least one monomer selected from the group consisting of C 3 to C 20 alpha olefins under solution phase conditions and in the presence of a metallocene catalyst in a second reactor to form a second copolymer mixed with the first copolymer in solution; and (d) drying the copolymer mixture to form a solid polymer composition, wherein: (i) the first and second copolymers have different mole percents of ethylene-derived units, with one copolymer having a lower ethylene content and the other copolymer having a higher ethylene content; (ii) the copolymer having a lower ethylene-content comprises from 50 to 70 mol % ethylene-derived units and has an MFR of from 0.2 to 25 g/10 min according to ASTM D1238 at 230° C., with a 2.16 Kg load; and (iii) the solid polymer composition has a solubility in oil of at least 5% by weight and a content of ethylene-derived units of from 70 to 85 mol %.