Process to produce high viscosity fluids

A process to produce a liquid poly-alpha olefin having a KV100 of greater than 20 cSt to about 10,000 cSt comprising:

• contacting one or more alpha-olefin monomers having 3 to 24 carbon atoms with an unbridged substituted bis(cyclopentadienyl) transition metal compound represented by the formula:
• (Cp)(CP*)M*X1X2
• wherein:
• M* is the metal center, and is a Group 4 metal;
• Cp and Cp* are the same or different cyclopentadienyl rings that are each bonded to M, and 1) both Cp and Cp* are substituted with at least one non-hydrogen substituent R group or 2) Cp is substituted with from two to five substituent R groups, each substituent group R being, independently, a radical group which is a hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl or germylcarbyl, or Cp and Cp* are the same or different cyclopentadienyl rings in which any two adjacent R groups are optionally joined to form a substituted or unsubstituted, saturated, partially unsaturated, or aromatic cyclic or polycyclic substituent;
• X1 and X2 are, independently, hydrogen, halogen, hydride radicals, hydrocarbyl radicals, substituted hydrocarbyl radicals, halocarbyl radicals, substituted halocarbyl radicals, silylcarbyl radicals, substituted silylcarbyl radicals, germylcarbyl radicals, or substituted germylcarbyl radicals;
• or both X are joined and bound to the metal atom to form a metallacycle ring containing from about 3 to about 20 carbon atoms;
• or both together can be an olefin, diolefin or aryne ligand;
• and
• a non-coordinating anion activator, and optionally an alkyl-aluminum compound, where the molar ratio of transition metal compound to activator is 10:1 to 0.1:1, and if the alkyl aluminum compound is present then the molar ratio of alkyl aluminum compound to transition metal compound is 1:4 to 4000:1,
• under polymerization conditions wherein:
• i) hydrogen is present at a partial pressure of 0.1 to 300 psi, based upon the total pressure of the reactor or the concentration of the hydrogen is from 1 to 30,000 ppm or less by weight;
• ii) wherein the alpha-olefin monomer(s) having 3 to 24 carbon atoms are present at 10 wt % or more based upon the total wt of the catalyst/activator/alkylaluminum compound solutions, monomers, and any diluents or solvents present in the reaction;
• and
• iii) provided that ethylene is not present at more than 40 wt % of the monomers entering the reactor.