Patent ID: 10316176

Abstract:
The present disclosure is directed to polymer compositions that can be useful as viscosity modifiers, comprising (a) a first ethylene-α-olefin copolymer having an ethylene content of from about 60 to about 80 wt % and (b) a second ethylene-α-olefin copolymer having an ethylene content of from about 40 to about 60 wt %. The polymer composition comprises about 35 wt % to about 50 wt of the first ethylene-α-olefin copolymer and about 50 wt % to about 65 wt % of the second ethylene-α-olefin copolymer. The polymer compositions are made by comprising producing a first ethylene-α-olefin copolymer in a first reactor, directing the first copolymer to a second reactor, producing the second ethylene-α-olefin copolymer in the second reactor and forming the polymer composition.