Air activated organotin catalysts for silicone curing and polyurethane preparation
Upon exposure to air, 1,2-bis(acyloxy)tetraalkyldistannanes incorporated in mixtures of either silicone oils and curing agent, or of isocyanates and alcohols, are oxidized to 1,3-bis(acyloxy)tetraalkyldistannoxanes which show excellent catalytic propertie