High viscosity polyalphaolefins prepared with ionic liquid catalyst

A process for producing a very high viscosity polyalphaolefin product which is characterized by a viscosity of at least 22 centistokes at 100° C., said process comprising contacting a feed consisting essentially of at least one alphaolefin of either 1-decene or 1-dodecene with an effective oligomerizing amount of a acidic binary ionic liquid oligomerization catalyst having a first component consisting of an aluminum halide or an alkyl aluminum halide and a second component consisting of a quaternary ammonium selected from selected from a quaternary ammonium halide containing one or more alkyl moieties having from 1 to about 9 carbon atoms or a hydrocarbyl substituted imidazolium halide;

• maintaining said feed and oligomerization catalyst under preselected oligomerization conditions for a sufficient time to oligomerize the alphaolefin to the polyalphaolefin product;
• and recovering the high viscosity polyalphaolefin product.

A process for producing a very high viscosity polyalphaolefin product comprising contacting a feed, said feed comprises either decene or dodecene but has an absence of an organic diluent, with an effective oligomerizing amount of an acidic ionic liquid oligomerization catalyst, maintaining said feed and oligomerization catalyst under preselected oligomerization conditions for a sufficient time to oligomerize said decene or dodecene to the polyalphaolefin product, and recovering the high viscosity polyalphaolefin product.

A process for producing a very high viscosity polyalphaolefin product which is characterized by a viscosity of at least 22 centistokes at 100° C., said process comprising contacting a feed, said feed comprises either decene or dodecene but has an absence of an organic diluent, with an effective oligomerizing amount of an acidic binary ionic liquid oligomerization catalyst having a first component consisting of an aluminum halide or an alkyl aluminum halide and a second component consisting of a quaternary ammonium selected from a quaternary ammonium halide containing one or more alkyl moieties having from 1 to about 9 carbon atoms or a hydrocarbyl substituted imidazolium halide;

• maintaining said feed and oligomerization catalyst under preselected oligomerization conditions for a sufficient time to oligomerize the decene or dodecene to the polyalphaolefin product;
• and recovering, the high viscosity polyalphaolefin product.