Patent ID: 7619027

Claim:
A plasticized polybutene composition comprising: (A) one or more butene homopolymers consisting essentially of butene or butene copolymers consisting essentially of butene and C 3 to C 8 alpha-olefins having a weight average molecular weight of 30,000 to 2,000,000 g/mol; (B) 1 to 40 wt % of one or more non-functionalized plasticizers (“NFP”) based upon the weight of the one or more butene homopolymers or copolymers and the NFP where the NFP comprises carbon and hydrogen and has (i) a pour point of less than −10° C., (ii) a viscosity index of 120 or more, (iii) a specific gravity of 0.700 to 0.860 and (iv) a Kinematic viscosity of 10 cSt or more at 100° C. wherein elastomers are substantially absent from the composition and where ethylene homopolymers and copolymers having a weight average molecular weight of from 500 to 10,000 are substantially absent; and wherein the composition comprises less than 10 wt % of one or more tackifiers.