Patent ID: 8791217

Claim:
A catalyst composition comprising: (i) an N,N-bis[2-hydroxidebenzyl]amine compound having formula (IIa): wherein: M is Ti, Zr, or Hf; X 1 and X 2 independently are a monoanionic ligand; each R B and R C independently is a halide, a C 1 to C 36 hydrocarbyl group, a C 1 to C 36 halogenated hydrocarbyl group, a C 1 to C 36 hydrocarboxy group, or a C 1 to C 36 hydrocarbylsilyl group, wherein p and q independently are 0, 1, 2, 3, or 4; and L is a C 1 to C 18 hydrocarbylene group; and D is a chemical group comprising at least one of nitrogen, oxygen, phosphorus, and sulfur; (ii) an activator-support comprising a solid oxide treated with an electron-withdrawing anion; and (iii) optionally, a co-catalyst.