This invention provides a primer composition comprising the following (A),
(B), (C) and (D) components:
(A) a saturated hydrocarbon polymer having at least one alkenyl group per
molecule,
(B) a silane coupling agent,
(C) a polyvalent alkoxysilane and/or a condensation product thereof, and
(D) an organoaluminum compound and/or an organotitanium compound.
