Laminar structures prepared with polyketone structural adhesives

A laminar structure consisting of a substrate and a structural adhesive consisting essentially of:

• a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon, wherein said linear alternating polymer is of the formula:
• ##STR1## wherein B is the moiety of an ethylenically unsaturated .alpha.-olefin of at least 3 carbon atoms polymerized through the ethylenic unsaturation, the ratio of y:x is no more than about 0.5 and wherein said adhesive is produced by contacting a carbon monoxide and at least one ethylenically unsaturated hydrocarbon under polymerization conditions, in the presence of a catalytic amount of a catalyst formed from a compound of the Group VIII metal, the anion of a non-hydrohalogenic acid of a pKa of less than about 6, and a bidentate ligand selected from the group comprising:
• phosphorus, arsenic, and antimony.