A-OLEFIN OLIGOMER AND PRODUCTION METHOD THEREOF

摘要

Provided are: an a-olefin oligomer fulfilling (1)-(6) below; an a-olefin oligomer which is produced with an a-olefin oligomer production method using a specific double-cross-linked meso-type complex and which has a low amount of dimer components while having a low viscosity without following the Schulz-Flory distribution; and a production method of said a-olefin oligomers. (1) The trimer component proportion C3 (mass%) is higher than the theoretical value found by means of the S-F distribution. (2) The hexamer component proportion C6 (mass%) is lower than the theoretical value found by means of the S-F distribution. (3) 100°C kinematic viscosity is 20mm2/s or less. (4) The mesotriad fraction [mm] measured by 13C-NMR is 40 mol% or less. (5) There are 0.2-1.0 vinylidene groups per 1 molecule. (6) The average carbon number of monomer units is 6-30. Here, the aforementioned S-F distribution is computed on the basis of chain growth probability a calculated from the dimer component proportion C2 (mass%).