A process for producing a polar olefin copolymer comprises copolymerizing
a non-polar olefin and a polar olefin in the presence of a transition
metal compound selected from Groups 4, 5, 6 and 11 of the periodic table,
which is represented by the following formula (IV): ##STR00001## wherein
M' is a transition metal atom selected from Groups 4, 5, 6 and 11 of the
periodic table, m is an integer of 1 to 6, A is --O--, --Si--, --Se--,
--N(R.sup.6)--, n is a number satisfying a valence of M', R.sup.1 to
R.sup.4 and R.sup.6 are each a hydrogen atom, a halogen atom, a
hydrocarbon group and the like, and X is a halogen atom, an oxygen atom,
a hydrocarbon group and the like, and at least one compound (B) selected
from the group consisting of an organometallic compound (B-1), an
organoaluminum oxy-compound (B-2) and an ionic ionizing compound (B-3).
Therefore, the process is capable of obtaining a polar olefin copolymer
having excellent properties under mild polymerization conditions.