Abstract: A process for reinforcing and repairing utility poles and the like, including the steps of placing gasket layers above and below the area to be repaired and a resin pervious layer, such as fiberglass, between the two gaskets followed by the step of wrapping the area from the lower gasket to a point near the upper gasket with a resin impervious layer, such as duct tape. Next, a liquid resin is preferably injected under pressure into the space between the utility pole and the resin impervious layer. Holes may be drilled to guide the resin into the interior of the pole, and injection tubes may be inserted into the hole to further direct the resin into the interior of the pole. The resin is then allowed to cure. Preferably, vertical grooves are formed in the exterior of the pole, and reinforcing rods are placed therein before the resin is injected.

Abstract: Curable epoxy resin compositions are disclosed comprising an epoxy resin based on epichlorohydrin and a dihydric phenol having combined therewith a metallic fluoborate salt, said composition being free from a strong acid or the hydrolyzable ester thereof. Fluoborate salts in aqueous solution are used as a curing agent and these salts are shown in combination with a surfactant or a polyalcohol. The resulting epoxy resin composition may be made autocatalytic. Epoxy foam formulations and fire retardant epoxy formulations are described. Fluoborate salts set forth include the salts of tin, copper, zinc, nickel, lead and silver. The use of adducted combinations of these salts is also shown.