COMPOSITIONS COMPRISING POLYALPHAOLEFINS

Compositions comprising polyalphaolefins are disclosed. The polyalphaolefin may be produced from a C6to C16normal alpha olefin and the polyalphaolefin may comprise less than 1 weight % saturated alpha olefin monomer; less than 3 weight % saturated dimers; and greater than 80 weight % saturated higher oligomers; and have a 100 °C kinematic viscosity of at least 25 cSt; a viscosity index greater than 160; and a pour point less than -35°C. Alternatively, the polyalphaolefin may be produced from a C6to C16normal alpha olefin comprising at least 80 weight percent of a C8normal alpha olefin and the polyalphaolefin may have a pour point less than 0°C; and a Bernoulli index less than 1.65. Alternatively, the polyalphaolefins may be alpha olefin oligomers that may be produced from a C6to C16normal alpha olefin comprising at least 90 weight percent of a C8normal alpha olefin and the alpha olefin oligomer product may comprise less than 1 weight % residual alpha olefin monomer; less than 3 weight % dimers; and greater than 80 weight % higher oligomers; and have a 100 °C kinematic viscosity of at least 25 cSt; and a viscosity index greater than 170. The polyalphaolefins have no discernable crystallization as determined by differential scanning calorimetry using ASTM D 3418.